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Investigation on catalytic properties of au nanorods with different aspect ratios by kinetic and thermodynamic analysis
Publication date: July 2018 Source:Journal of Solid State Chemistry, Volume 263 Author(s): Ting Zhou, Tingting Liu, Zhiqing Zhang, Guodong Zhang, Fang Wang, Xiufeng Wang, Shuzhen Liu, Hongzhi Zhang, Shanshan Wang, Jie Ma Three different aspect ratios (AR = rods length/rods width, AR = 2.8, 3.3, 3.8) of Au nanorods were synthesized and characterized by various measurements. We have evaluated the AR-dependent catalytic properties of Au nanorods using a model reaction based on the reduction of 4-nitrophenol (4-NP) by NaBH4. From the average reaction rate constants (k) at different temperatures, the activation energy (E a ) w...
Source: Journal of Solid State Chemistry - April 12, 2018 Category: Chemistry Source Type: research

First copper(II)-cyclophosphato complex with macrocyclic N-donor ligand: Single crystal structure elucidation with Hirshfeld surface analysis, optical, electrochemical and antioxidant properties
Publication date: July 2018 Source:Journal of Solid State Chemistry, Volume 263 Author(s): Hanène Hemissi, Ramzi Fezai, Ali Mezni, Salma Besbes-Hentati, Mohamed Rzaigui From the system metal-cyclam-condensed phosphate is isolated the first complex of {(H3O+)2[Cu(II)(μ-P4O12)(cyclam)]}n (1). This complex was characterized by X-ray diffraction (XRD), spectroscopy (diffuse reflectance, UV–Vis and FT-IR) and thermal analysis (DTA/TGA). The solved molecular structure of 1 revealed one rare 1D-anionic polymeric copper(II)-complex, {[Cu(II)(μ-P4O12)(cyclam)]2-}n, involving two distinct ring ligands (cyclam / c...
Source: Journal of Solid State Chemistry - April 10, 2018 Category: Chemistry Source Type: research

Self-assembly of novel manganese (II) compounds based on bifunctional-group ligands: Synthesis, structures, and magnetic properties
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Juan-zhi Yan, Li-ping Lu, Miao-li Zhu, Si-si Feng Four manganese (II) compounds are obtained by the reaction of manganese salts, triazole-derivatives and auxiliary reagents in aqueous solution or mix-solvents by routine or hydrothermal reactions. X-ray crystal structure analyses reveal that a neutral 0D compound [Mn(Hmctrz)2(H2O)2] (1) (H2mctrz = 1H-1,2,4-triazole-3-carboxylic acid) displays a centro-symmetric mononuclear octahedral entity with two Hmctrz − anions and two water molecules; two neutral 2D clusters [Mn(Hdctrz)(H2...
Source: Journal of Solid State Chemistry - April 7, 2018 Category: Chemistry Source Type: research

Synthesis, crystal structure, characterizations and magnetic study of a novel two-dimensional iron fluoride
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Sabrine Bouketaya, Mouna Smida, Mohammed S.M. Abdelbaky, Mohamed Dammak, Santiago García-Granda A new hybrid compound formulated as [Fe3F8(H2O)2](Am2TAZ)2 (Am2TAZ= 3,5-diamino-1,2,4-triazole) was prepared under hydrothermal conditions. The crystal structure was solved by single-crystal X-ray diffraction and the bulk was characterized by thermal analyses (TG-MS), vibrational spectroscopy (FTIR, Raman), Ultraviolet-visible spectroscopy (UV–Vis), and scanning electron microscopy (SEM-EDX). It crystallizes in the triclinic ...
Source: Journal of Solid State Chemistry - April 7, 2018 Category: Chemistry Source Type: research

The double peaks and symmetric path phenomena in the catalytic activity of Pd/Al2O3-TiO2 catalysts with different TiO2 contents
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Shen Zhang, Yuyu Guo, Xingying Li, Xu Wu, Zhe Li Physicochemical properties of Pd/Al2O3-TiO2 catalysts with different amounts of TiO2 contents were investigated by XRD, nitrogen adsorption-desorption, FTIR, NH3-TPD, H2-TPR and XPS techniques. Catalysts of different compositions were tested in the ethanol oxidation reaction to study the effects of TiO2 contents. Double peaks and symmetric path phenomena were observed at certain temperatures with the increase in TiO2 contents. The symmetric peak phenomena and the diverse activity fluc...
Source: Journal of Solid State Chemistry - April 7, 2018 Category: Chemistry Source Type: research

Three new d10 transition metal selenites containing PO4 tetrahedron: Cd7(HPO4)2(PO4)2(SeO3)2, Cd6(PO4)1.34(SeO3)4.66 and Zn3(HPO4)(SeO3)2(H2O)
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Yun-Xiang Ma, Ya-Ping Gong, Chun-li Hu, Jiang-Gao Mao, Fang Kong Three new d10 transition metal selenites containing PO4 tetrahedron, namely, Cd7(HPO4)2(PO4)2(SeO3)2 (1), Cd6(PO4)1.34(SeO3)4.66 (2) and Zn3(HPO4)(SeO3)2(H2O) (3), have been synthesized by hydrothermal reaction. They feature three different structural types. Compound 1 exhibits a novel 3D network composed of 3D cadmium selenite open framework with phosphate groups filled in the 1D helical tunnels. The structure of compound 2 displays a new 3D framework consisted of 2D ...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Full synergistic effect of hydrothermal NiCo2O4 nanosheets/CuCo2O4 nanocones supported on Ni foam for high-performance asymmetric supercapacitors
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Shiyang Wen, Yu Liu, Hongye Bai, Rong Shao, Wei Xu, Weidong Shi In this work, a series of NiCo2O4/CuCo2O4 composites were prepared by a two-step hydrothermal method. The optimized NiCo2O4/CuCo2O4 electrode shows more than 5 times area capacitance (4.97 F cm−2) than pure NiCo2O4 at the current density of 1 mA cm−2. The best performance of sample assembled an asymmetric supercapacitor could reach up to 42 F g−1 at the current density of 1 A g−1. In addition, the maximum energy density of 15 W...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Crystal structures and theoretical studies of polyphosphate LiZnP3O9 for nonlinear optical applications
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Zhiqing Xie, Xin Su, Hanqin Ding, Hongyi Li Nonlinear optical materials have attracted worldwide attention owing to their wide range of applications, specially in the laser field. Phosphates with noncentrosymmetric structures are potential candidates for novel ultraviolet (UV)-NLO materials, because they usually display short UV cut-off edges. In this work, a polyphosphate, the LiZnP3O9 polyphosphate crystals were grown through spontaneous crystallization from high-temperature melts. It crystallizes in the orthorhombic space group P...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Tunable phase transition in single-layer TiSe2 via electric field
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Lei Liu, Houlong L. Zhuang Phase transition represents an intriguing physical phenomenon that exists in a number of single-layer transition-metal dichalcogenides. This phenomenon often occurs below a critical temperature and breaks the long-range crystalline order leading to a reconstructed superstructure called the charge-density wave (CDW) structure, which can therefore be recovered by external stimuli such as temperature. Alternatively, we show here that another external stimulation, electric field can also result in the phase tr...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Electrochemical reaction mechanisms under various charge-discharge operating conditions for Li1.2Ni0.13Mn0.54Co0.13O2 in a lithium-ion battery
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Hiroaki Konishi, Tatsumi Hirano, Daiko Takamatsu, Akira Gunji, Xiaoliang Feng, Sho Furutsuki, Takefumi Okumura, Shohei Terada, Kazuhisa Tamura The potential in each state of charge (SOC) during charging of Li1.2Ni0.13Mn0.54Co0.13O2 is higher than that during discharging. In other words, the potential hysteresis occurs between charging and discharging. Furthermore, the potential in each SOC changes according to the charge-discharge operating conditions, indicating that the charge-discharge reaction mechanism is also affected. To clar...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

One-pot low-temperature green synthesis of magnetic graphene nanocomposite for the selective reduction of nitrobenzene
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Vijayasree Haridas, Sankaran Sugunan, Binitha N. Narayanan In the present study, a green one-pot low-temperature method is adopted for the synthesis of a novel magnetic graphene nanocomposite catalyst. Graphene preparation is performed without employing any oxidizing agents or corrosive chemicals, under mild sonication in isopropyl alcohol - water mixture. Monolayered nanoplatelets of graphene are obtained in the green solvent mixture and the composite material is found to be ferromagnetic in nature, obvious from the vibrating sampl...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

A bifunctional luminescent Tb(III)-metal-organic framework by a tetracarboxylate ligand for highly selective detection of Fe3+ cation and Cr2O72- anion
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Li Yu, Chao Wang, Chang-Jiang Hu, Wen-Wen Dong, Ya-Pan Wu, Dong-Sheng Li, Jun Zhao Reaction of Tb3+ ions with p-terphenyl-3,3″,5,5″-tetracarboxylic acid (H4ptptc) in a mixed solvent system has afforded a new metal-organic framework formulated as [Tb2(ptptc)1.5(H2O)2] n (1). Compound 1 displays a 3D (5,6,8)-connected framework with fascinating one-dimensional triangle open channels. The luminescence explorations demonstrated that 1 exhibits highly selective and sensitive response to Fe3+ in DMF solution and biological sys...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

SAPO-34/AlMCM-41, as a novel hierarchical nanocomposite: preparation, characterization and investigation of synthesis factors using response surface methodology
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Hossein Roohollahi, Rouein Halladj, Sima Askari, Fereydoon Yaripour SAPO-34/AlMCM-41, as a new hierarchical nanocomposite was successfully synthesized via hydrothermal and dry-gel conversion. In an experimental and statistical study, effect of five input parameters including synthesis period, drying temperature, NaOH/Si, water/dried-gel and SAPO% were investigated on range-order degree of mesochannels and the relative crystallinity. X-ray diffraction (XRD) patterns were recorded to characterize the ordered AlMCM-41 and crystalline S...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Investigation of the nanoscale two-component ZnS-ZnO heterostructures by means of HR-TEM and X-ray based analysis
This article is devoted to the spectroscopic characterization of ZnS-ZnO nanoscale heterostructures synthesized by the microwave-assisted solvothermal method. The synthesized samples were investigated by means of X-ray powder diffraction (XRPD), high energy resolution fluorescence detected X-ray absorption near-edge-structure (HERFD-XANES) spectroscopy, valence-to-core X-ray emission spectroscopy (VtC-XES) and high resolution transmission electron microscopy (HR-TEM) as well as energy dispersive X-ray spectroscopy (EDX). The average crystallite size estimated by the broadening of XRPD peaks increases from 2.7 nm to 3.7...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

An uncommon 3D (3,8)-connected metal-organic framework: Luminescence sensing and photocatalytic properties
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Yu Wu, Yulong Li, Xiren Wu, Miaomiao Luo, Like Zou, Qiuxia Xu, Shaoge Cai A new tripodal carboxylic ligand, 2-(4-carboxylphenoxy) terephthalic acid (H3L2), readily reacts with Zn(II) salt in the presence of 4,4′-bipyridine (4,4′-bipy) to afford a new metal-organic framework of {Zn3(L2)2(μ2-H2O)(4,4′-bipy)}n (1). 1 shows 3D two-fold interpenetrating network with (3,8)-connected tfz-d topology. 1 exhibits impressive pH stability and strong luminescence, making it an excellent candidate as a fluorescent chemical se...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

First-principles analysis of ferroelectric transition in MnSnO3 and MnTiO3 perovskites
This study examined the ferroelectric transition of two magnetic perovskite materials, MnSnO3 and MnTiO3, in Pnma phase. Phase transitions to the Pnma phase at elevated pressures were observed. MnSnO3, which has a lower (larger) tolerance factor (B-site cation radius), showed a higher ferroelectric mode amplitude than MnTiO3. The distribution of the bond length of Mn-O and the mean quadratic elongation (QE) of octahedra (SnO6 or TiO6) were investigated for structural analysis. However, MnTiO3 showed a larger spontaneous polarization than MnSnO3 due to high Born effective charges of titanium. This study is useful because it...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Semiconductor-insulator transition in a YbB6 nanowire with boron vacancy
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Wei Han, Zhen Wang, Qidong Li, Xin Lian, Xudong Liu, Qinghua Fan, Yanming Zhao In this paper, we report the study of transport and magnetic properties of ytterbium hexaboride (YbB6) nanowires grown by a low trigger-temperature (200–240 °C) solid state method. The temperature dependence of resistivity shows that the YbB6 nanowire undergoes a semiconductor-insulator transition (SIT) below 20 K with an activation energy ΔE of 1 meV. The value of ρ at 2 K reaches 49 times the value of ρ at 300 K (ρ ...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Effect of titanium ester on synthesizing NH2-MIL-125(Ti): Morphology changes from circular plate to octahedron and rhombic dodecahedron
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Shen Hu, Min Liu, Xinwen Guo, Zhichong Kuang, Keyan Li, Chunshan Song, Guoliang Zhang Titanium based MOF materials NH2-MIL-125 was synthesized through solvothermal method. By increasing the concentration of the reactants, the morphology of NH2-MIL-125 can be controlled from circular plate to special polyhedron. Meanwhile, the polyhedron can be modulated from octahedron to rhombic dodecahedron through changing the titanium ester of the reactants from tetraethyl titanate to tetrabutyl titanate. This is the first time to obtain NH2-MIL...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Dealloyed Pt3Co nanoparticles with higher geometric strain for superior hydrogen evolution reaction
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Mohammad Saquib, Aditi Halder In the present work, the effect of surface strain in the carbon supported Pt3Co dealloy catalyst towards hydrogen evolution reaction (HER) has been reported. Dealloying process is adopted to generate the geometric strain in Pt3Co/C alloy by preferential dissolution of non-noble metal (Co) from the alloy. The developed geometric strain has been estimated by different microstructural characterization techniques. Electrochemical studies showed that the highest current density for HER was obtained for Pt3Co...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

Surface defect chemistry and oxygen exchange kinetics in La2 –xCaxNiO4+δ
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): E.S. Tropin, M.V. Ananyev, A.S. Farlenkov, A.V. Khodimchuk, A.V. Berenov, A.V. Fetisov, V.A. Eremin, A.A. Kolchugin Surface oxygen exchange kinetics and diffusion in La2–x Ca x NiO4+δ (x = 0; 0.1; 0.3) have been studied by the isotope exchange method with gas phase equilibration in the temperature range of 600–800 °C and oxygen pressure range 0.13–2.5 kPa. Despite an enhanced electrical conductivity of La2–x Ca x NiO4+δ theirs oxygen surface exchange (k*) and oxygen tracer diffusion (D*)...
Source: Journal of Solid State Chemistry - April 6, 2018 Category: Chemistry Source Type: research

WO3-x based composite material with chitosan derived nitrogen doped mesoporous carbon as matrix for oxygen vacancy induced organic pollutants catalytic reduction and IR driven H2 production
Publication date: Available online 3 April 2018 Source:Journal of Solid State Chemistry Author(s): Luyue Wang, Xinxin Xu, Zhongmin Feng, Lijun Bian, Yun Wang A nitrogen doped mesoporous carbon matrix supported tungsten oxide composite material, WO 3-x @NC, (1 > x > 0), was fabricated successfully with chitosan and polyoxometalates as precursors through calcination. In this composite material, tungsten oxide particles with the size about 5 to 8nm disperse evenly in the framework of nitrogen doped mesoporous carbon matrix. WO 3-x @NC exhibits striking catalytic activity for reductive conversion of 4-nitropheno...
Source: Journal of Solid State Chemistry - April 4, 2018 Category: Chemistry Source Type: research

Effect of particle size and local disorder on specific surface area of layered double hydroxides upon calcination-reconstruction
Publication date: Available online 3 April 2018 Source:Journal of Solid State Chemistry Author(s): Bo-Kyung Kim, Gyeong-Hyeon Gwak, Tomohiko Okada, Jae-Min Oh The specific surface area changes in MgAl-layered double hydroxide (LDH), which is also known as hydrotalcite, were monitored along with their changes in particle size, crystallinity and local disorder around Al. Two kinds of LDHs were prepared by hydrothermal reaction during 1day (H1) and 3 days (H3). The lateral size and thickness of H3 was twice than those of H1; however, the crystallinity and ordering around Al was comparable for both LDHs. Upon calcination at 5...
Source: Journal of Solid State Chemistry - April 3, 2018 Category: Chemistry Source Type: research

Effect of anti-site point defects on the mechanical and thermodynamic properties of MgZn2, MgCu2 Laves phases: A first-principle study
Publication date: Available online 3 April 2018 Source:Journal of Solid State Chemistry Author(s): Shuo Wang, Yuhong Zhao, Hua Hou, Zhiqin Wen, Peilin Zhang, Jianquan Liang A theoretical investigation on the effect of anti-site point defects on mechanical and thermodynamic properties of MgZn2 and MgCu2 based on the first-principles calculations has been implemented. The results show that Mg anti-site defect on Zn or Cu site plays a reinforcing role, while exhibiting a more brittle behavior. However, the defect phase of Cu anti-sites on Mg sublattice shows a ductile tendency. The temperature-dependent thermodynamic propert...
Source: Journal of Solid State Chemistry - April 3, 2018 Category: Chemistry Source Type: research

X-ray Photoelectron Spectroscopy Study of CaV1-xMoxO3- δ
Publication date: Available online 3 April 2018 Source:Journal of Solid State Chemistry Author(s): S.A. Belyakov, M.V. Kuznetsov, S.N. Shkerin An investigation was carried out on perovskite-based derivatives of CaV1-xMoxO3-δ using X-ray Photoelectron Spectroscopy (XPS). According to the XRD pattern, the area of homogeneity covers the region from x = 0 to x = 0.6. Wide XPS-peaks of Ca, V, Mo and O are observed, signalling that elements are presented in multiple states. A model for explaining the large chemical shifts of XPS peaks due to different charging effects on different parts of the sample surface is proposed. ...
Source: Journal of Solid State Chemistry - April 3, 2018 Category: Chemistry Source Type: research

Magnetic Studies on Eu3MO7 (M = Nb, Ta, Ir) with Fluorite-related Structure by 151Eu M össbauer Spectroscopy and Magnetic Susceptibility Measurements
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Yukio Hinatsu, Yoshihiro Doi, Makoto Wakeshima Magnetic properties of europium-containing compounds Eu3 MO7 (M = Nb, Ta, Ir) with fluorite-related structure have been investigated. Magnetic susceptibility measurements show that all these compounds are paramagnetic and have no magnetic ordering down to 1.8 K. At very low temperatures (T<50 K), the susceptibilities of each compound attain constant values, which is characteristic of the ground state for Eu3+ ions. The results of 151Eu Mössbauer spectroscopic measurement...
Source: Journal of Solid State Chemistry - March 30, 2018 Category: Chemistry Source Type: research

Syntheses and characterizations of secondary Pb –O bonding supported Pb(II)-sulfonate complexes
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Guo-Zhen Huang, Xin Zou, Zhi-Biao Zhu, Zhao-Peng Deng, Li-Hua Huo, Shan Gao The reaction of Pb(II) salts and mono- or disulfonates leads to the formation of eight new Pb(II)-mono/disulfonate complexes, [Pb(L1)(H2O)]2 (1), [Pb4(L2)2(AcO)2]n·5nH2O (2), [Pb(L3)(H2O)]2 (3), [Pb(HL4)(H2O)2]n·nH2O (4), [Pb(HL5)(H2O)2]n·2nH2O (5), [Pb(H 2 L6)(H2O)]n·nDMF·2nH2O (6), [Pb2(H 3 L7)4(H2O)6]·2H2O (7) and [Pb(H 2 L7)(H2O)]n·nH2O (8) (H 2 L1 = 2-hydroxy-5-methyl-benzenesulfonic acid, H 3 L2 = 2-hydr...
Source: Journal of Solid State Chemistry - March 30, 2018 Category: Chemistry Source Type: research

Porous MnCo2O4 as superior anode material over MnCo2O4 nanoparticles for rechargeable lithium ion batteries
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Dona Susan Baji, Harsharaj S. Jadhav, Shantikumar V. Nair, Alok Kumar Rai Pyro synthesis is a method to coat nanoparticles by uniform layer of carbon without using any conventional carbon source. The resultant carbon coating can be evaporated in the form of CO or CO2 at high temperature with the creation of large number of nanopores on the sample surface. Hence, a porous MnCo2O4 is successfully synthesized here with the same above strategy. It is believed that the electrolyte can easily permeate through these nanopores into the bulk...
Source: Journal of Solid State Chemistry - March 28, 2018 Category: Chemistry Source Type: research

Synthesis of MIL-100(Fe)@MIL-53(Fe) as a novel hybrid photocatalyst and evaluation photocatalytic and photoelectrochemical performance under visible light irradiation
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Soheil Abdpour, Elaheh Kowsari, Mohammad Reza Alavi Moghaddam The MIL-100(Fe)@MIL-53(Fe) was synthesized by the ultrasound method, while the initial solution for the preparation of the photocatalysts was included nanoparticles of MIL-100(Fe) and a precursor solution for the synthesizing of MIL-53(Fe). After an appropriate time of reaction, nanoparticles of MIL-100(Fe) were decorated on the surface of MIL-53(Fe). Phtoelectrochemical/electrochemical and photocatalytic degradation of methyl orange over MIL-100(Fe)@MIL-53(Fe) were explo...
Source: Journal of Solid State Chemistry - March 27, 2018 Category: Chemistry Source Type: research

Structural properties of barium stannate
We report a series of measurements that were carried out to assess the structure of BaSnO3 over a variety of length scales. Measurements included single crystal neutron and x-ray diffraction, Rietveld and pair distribution analysis of neutron powder diffraction, Raman scattering, and high-pressure x-ray diffraction. Results from the various diffraction probes indicate that both the long-range and local structures are consistent with the cubic symmetry. The diffraction data under pressure was consistent with a robustly cubic phase up to 48.9 GPa, which is supported by density functional calculations. Additionally, transve...
Source: Journal of Solid State Chemistry - March 22, 2018 Category: Chemistry Source Type: research

Oxygen nonstoichiometry and thermodynamic quantities in solid solution SrFe1 –xSnxO3–δ
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): O.V. Merkulov, A.A. Markov, I.A. Leonidov, M.V. Patrakeev, V.L. Kozhevnikov The oxygen content (3–δ) variations in tin substituted derivatives SrFe1–x Sn x O3–δ , where x = 0.05, 0.1, 0.17 and 0.25, of perovskite-like strontium ferrite, have been studied by coulometric titration measurements within oxygen partial pressure ( p O 2 ) range 10–19–10–2 atm at 800–950 °С. The obtained dependencies of (3–δ) from p O 2 and temperature are used for calculations...
Source: Journal of Solid State Chemistry - March 20, 2018 Category: Chemistry Source Type: research

A new set of K3Fe3(PO4)4 ·yH2O (0 ≤ y ≤ 1) layered phases obtained by topotactic reactions
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Khiem Trad, Alain Wattiaux, Mongi Ben Amara, Claude Delmas, Dany Carlier K3Fe3(PO4)4·H2O powder was synthesized by Na+/K+ exchange reaction from Na3Fe3(PO4)4 in aqueous medium. The replacement of the sodium cations by the potassium larger ones and water molecules causes a structural distortion leading to P2/n monoclinic K3Fe3(PO4)4·H2O. This new layered phase was characterized by XRD, Mössbauer spectroscopy and magnetic measurements. The study of its thermal stability reveals that other new layered K3Fe3(PO4)4&mid...
Source: Journal of Solid State Chemistry - March 20, 2018 Category: Chemistry Source Type: research

Carbon/CuO  nanosphere-anchored g-C3N4 nanosheets as ternary electrode material for supercapacitors
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): S.V. Prabhakar Vattikuti, B. Purusottam Reddy, Chan Byon, Jaesool Shim Novel electrode materials for supercapacitors comprised of carbon and copper oxide (CuO) nanospheres on graphitic carbon nitride (g-C3N4) nanosheets, denoted as C/CuO@g-C3N4 are self-assembled via a one-step co-pyrolysis decomposition method. The pure g-C3N4 and C/CuO@g-C3N4 were confirmed by powder X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), thermal gravimetric and differential thermal analysis (TG-DTA), X-ray photoelectron...
Source: Journal of Solid State Chemistry - March 20, 2018 Category: Chemistry Source Type: research

Nitrogen-doped carbon decorated Cu2NiSnS4 microflowers as superior anode materials for long-life lithium-ion batteries
Publication date: May 2018 Source:Journal of Solid State Chemistry, Volume 261 Author(s): Pei Pan, Lihui Chen, Yu Ding, Jun Du, Chuanqi Feng, Zhengbin Fu, Caiqin Qin, Feng Wang Nitrogen-doped carbon (NC) decorated Cu2NiSnS4 (CNTS) microflower composites (NC@CNTS) were fabricated through a facile solvothermal and pyrrole polymerization with further annealing treatment. The NC@CNTS composites possessed a three-dimension (3D) microflower-like hierarchical structure. The unique microflower structure of NC@CNTS composites exhibited remarkable electrochemical performance as electrode materials for long life lithium ion batterie...
Source: Journal of Solid State Chemistry - March 17, 2018 Category: Chemistry Source Type: research

Carbon/CuO nanosphere-anchored g-C3N4 nanosheets as ternary electrode material for supercapacitors
Publication date: Available online 15 March 2018 Source:Journal of Solid State Chemistry Author(s): S.V. Prabhakar Vattikuti, B. Purusottam Reddy, Chan Byon, Jaesool Shim Novel electrode materials for supercapacitors comprised of carbon and copper oxide (CuO) nanospheres on graphitic carbon nitride (g-C3N4) nanosheets, denoted as C/CuO@g-C3N4 are self-assembled via a one-step co-pyrolysis decomposition method. The pure g-C3N4 and C/CuO@g-C3N4 were confirmed by powder X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), thermal gravimetric and differential thermal analysis (TG-DTA), X-ray phot...
Source: Journal of Solid State Chemistry - March 16, 2018 Category: Chemistry Source Type: research

Synthesis of Calcium Carbonate in Alkali Solution based on Graphene Oxide and Reduced Graphene Oxide
Publication date: Available online 15 March 2018 Source:Journal of Solid State Chemistry Author(s): Sarah Abduljabbar Yaseen, Ghadah Abdaljabar Yiseen, Zongjin Li This paper reports a new approach of producing CaCO3 particles in alkali solution. CaCO3 particles with pure calcite structure were obtained from the reaction of water-dispersed graphene oxide (GO) or reduced graphene oxide (rGO) with either Ca(OH)2 or CaO. In Fourier Transform Infrared (FTIR) spectra, the pure calcite structure was demonstrated by fundamental bands at 1425 (ν3), 873 (ν2), and 712cm−1 (ν4). The Raman spectra showed the characteris...
Source: Journal of Solid State Chemistry - March 16, 2018 Category: Chemistry Source Type: research

In-situ confined formation of NiFe layered double hydroxide quantum dots in expanded graphite for active electrocatalytic oxygen evolution
Publication date: Available online 15 March 2018 Source:Journal of Solid State Chemistry Author(s): Jinxue Guo, Xiaoyan Li, Yanfang Sun, Qingyun Liu, Zhenlan Quan, Xiao Zhang Development of noble-metal-free catalysts towards highly efficient electrochemical oxygen evolution reaction (OER) is critical but challenging in the renewable energy area. Herein, we firstly embed NiFe LDHs quantum dots (QDs) into expanded graphite (NiFe LDHs/EG) via in-situ confined formation process. The interlayer spacing of EG layers acts as nanoreactors for spatially confined formation of NiFe LDHs QDs. The QDs supply huge catalytic sites for O...
Source: Journal of Solid State Chemistry - March 16, 2018 Category: Chemistry Source Type: research

A new set of K3Fe3(PO4)4.yH2O (0 ≤ y ≤ 1) layered phases obtained by topotactic reactions
Publication date: Available online 14 March 2018 Source:Journal of Solid State Chemistry Author(s): Khiem Trad, Alain Wattiaux, Mongi Ben Amara, Claude Delmas, Dany Carlier K3Fe3(PO4)4.H2O powder was synthesized by Na+/K+ exchange reaction from Na3Fe3(PO4)4 in aqueous medium. The replacement of the sodium cations by the potassium larger ones and water molecules causes a structural distortion leading to P2/n monoclinic K3Fe3(PO4)4.H2O. This new layered phase was characterized by XRD, Mössbauer spectroscopy and magnetic measurements. The study of its thermal stability reveals that other new layered K3Fe3(PO4)4.yH2O wit...
Source: Journal of Solid State Chemistry - March 15, 2018 Category: Chemistry Source Type: research

Yb3+-doped cadmium molybdato-tungstate single crystal – its structural, optical, magnetic and transport properties
Publication date: Available online 14 March 2018 Source:Journal of Solid State Chemistry Author(s): T. Groń, E. Tomaszewicz, M. Berkowski, M. Głowacki, M. Oboz, J. Kusz, B. Sawicki, Z. Kukuła, H. Duda Single crystal of new cadmium and ytterbium molybdato-tungstate (Cd0.9706⎕0.0098Yb0.0196(MoO4)0.9706(WO4)0.0294, where ⎕ denotes cationic vacancies) has been successfully grown by the Czochralski method in air and under 1MPa. X-ray crystallographic analysis reveals that the as-grown single crystal belongs to a scheelite-type structure (a = b = 5.15539(12) and c = 11.1919(3) Å, space group I41/a), in which Yb3+ i...
Source: Journal of Solid State Chemistry - March 15, 2018 Category: Chemistry Source Type: research

A Luminescent Ytterbium(III)-Organic Framework for Highly Selective Sensing of 2,4,6-Trinitrophenol
Publication date: Available online 14 March 2018 Source:Journal of Solid State Chemistry Author(s): Xuelian Xin, Minghui Zhang, Shijie Ji, Hanxiao Dong, Liangliang Zhang An ytterbium(III)-organic framework, [Yb4(abtc)3(HCOO) (H2O)]·(C2H8N) (H2O) (UPC-22, H4abtc = 3,3ʹ,5,5ʹ-azobenzene-tetracarboxylic acid) was synthesized under solvothermal conditions and characterized. UPC-22 exhibited strong H4abtc-based luminescence and can be used for sensing nitroaromatic compounds (NACs) in an ethanol suspension with outstanding selectivity and sensitivity. The most striking property of UPC-22 is its ability to selectively d...
Source: Journal of Solid State Chemistry - March 14, 2018 Category: Chemistry Source Type: research

Efficient green luminescence of terbium oxalate crystals: A case study with Judd-Ofelt theory and single crystal structure analysis and the effect of dehydration on luminescence
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Dinu Alexander, Monu Joy, Kukku Thomas, S. Sisira, P.R. Biju, N.V. Unnikrishnan, C. Sudarsanakumar, M.A. Ittyachen, Cyriac Joseph Design and synthesis of Lanthanide based metal organic framework is a frontier area of research owing to their structural diversity enabling specific applications. The luminescence properties of rare earths, tuned by the structural features of Ln-MOFs are investigated extensively. Rare earth oxalates which can be synthesized in a facile method, ensuring the structural features of MOFs with excellent photo...
Source: Journal of Solid State Chemistry - March 14, 2018 Category: Chemistry Source Type: research

Synthesis of sub-micro-flakes CrSe2 on glass and (110) Si substrates by solvothermal method
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Qingkai Tang, Changyou Liu, Binbin Zhang, Wanqi Jie Layered structure MX2 (M = transition metal, X = S, Se and Te) chalcogenides have rich physic properties and potential applications. While it is still a challenge to prepare the chalcogenides by solvothermal method. In this work, we reported a new solution method to prepare CrSe2 sub-micro-flakes on different substrates. The surface morphologies, structures and compositions of the precursor CrSe2(en)1/2 and CrSe2 were investigated by SEM, XRD, thermogravimetric, IR and Raman spec...
Source: Journal of Solid State Chemistry - March 14, 2018 Category: Chemistry Source Type: research

Ni(II)/Zn(II)-Triazolate Clusters Based MOFs Constructed from a V-Shaped Dicarboxylate Ligand: Magnetic Properties and Phosphate Sensing
Publication date: Available online 12 March 2018 Source:Journal of Solid State Chemistry Author(s): Yong-Qiang Chen, Yuan Tian, Na Li, Sui-Jun Liu Two isomorphous metal-organic frameworks (MOFs) {[M2(μ 3-OH)(trz)(sdba)(H2O)]·3H2O}∞ (M = Ni for 1, Zn for 2, Htrz = 1,2,4-triazole, H2sdba = 4,4ʹ-sulfonyldibenzoate) were obtained under the same reaction condition. Both of complexes present a three dimensional 8-c framework with whc1 topology based on M4-(μ 3-OH) units. Moreover, the magnetic properties of 1 and anion sensing of 2 were investigated. The magnetic study show that the domain antiferromagnetic ...
Source: Journal of Solid State Chemistry - March 13, 2018 Category: Chemistry Source Type: research

Experimental and first principle study of the structure, electronic, optical and luminescence properties of M-type GdNbO4 phosphor
Publication date: Available online 9 March 2018 Source:Journal of Solid State Chemistry Author(s): Shoujun Ding, Haotian Zhang, Qingli Zhang, Yuanzhi Chen, Renqin Dou, Fang Peng, Wenpeng Liu, Dunlu Sun In this work, GdNbO4 polycrystalline with monoclinic phase was prepared by traditional high-temperature solid-state reaction. Its structure was determined by X-ray diffraction and its unit cell parameters were obtained with Rietveld refinement method. Its luminescence properties (including absorbance, emission and luminescence lifetime) were investigated with experiment method and the CIE chromaticity coordinate was present...
Source: Journal of Solid State Chemistry - March 10, 2018 Category: Chemistry Source Type: research

Construction, Structural Diversity and Properties of Five Coordination Polymers Based on 5-Nitroisophthalate and Bis(imidazole) Linkers
Publication date: Available online 9 March 2018 Source:Journal of Solid State Chemistry Author(s): Mürsel Arıcı Five coordination polymers, namely, [Cd(µ3–5-nip)(µ-obix)]n (1), [Co(µ3–5-nip)(µ-obix)]n (2), [Zn(µ−5-nip)(µ-obix)]n (3 and 4) and [Cd(µ−5-nip)(µ-bisobix)]n (5) (5-nip: 5-nitroisophthalate, obix: 1,2-bis(imidazol-1ylmethyl)benzene, bisobix: 1,2-bis(2-isopropylimidazol-1ylmethyl)benzene) were hydrothermally synthesized and characterized by IR spectroscopy, elemental analysis, single crystal and powder X-ray diffraction and thermal anal...
Source: Journal of Solid State Chemistry - March 10, 2018 Category: Chemistry Source Type: research

Ternary Rare Earth Sulfide CaCe2S4: Synthesis and Characterization of Stability, Structure, and Photoelectrochemical Properties in Aqueous Media
Publication date: Available online 7 March 2018 Source:Journal of Solid State Chemistry Author(s): Paola Sotelo, Melissa Orr, Miguel Tayar Galante, Mohammad Kabir Hossain, Farinaz Firouzan, Abbas Vali, Jun Li, Mas Subramanian, Claudia Longo, Krishnan Rajeshwar, Robin T. Macaluso A red-orange rare earth ternary chalcogenide, CaCe2S4, was prepared in powder form by solid-state synthesis. The structural details of this compound were determined by powder X-ray diffraction. The optical band gap of CaCe2S4 was determined by diffuse reflectance spectroscopy (DRS) to be ~2.1eV, consistent with the observed red-orange color. Quant...
Source: Journal of Solid State Chemistry - March 9, 2018 Category: Chemistry Source Type: research

High-Pressure Investigations of Yttrium(III) Oxoarsenate(V): Crystal Structure and Luminescence Properties of Eu3+-Doped Scheelite-Type Y[AsO4] from Xenotime-Type Precursors
Publication date: Available online 7 March 2018 Source:Journal of Solid State Chemistry Author(s): Florian Ledderboge, Jan Nowak, Hans-Joachim Massonne, Katharina Förg, Henning A. Höppe, Thomas Schleid Colourless, water- and air-stable single crystals of yttrium(III) oxoarsenate(V) Y[AsO4] in the xenotime-type crystal structure were prepared by the reaction of yttrium sesquioxide (Y2O3) dissolved in aqueous nitric acid (13%) with a solution of arsenic(V) oxide hydrate (As2O5 ∙ 3 H2O) and subsequent neutralization with 1M caustic soda. Y[AsO4] crystallizes tetragonally in the space group I41/amd with the lattic...
Source: Journal of Solid State Chemistry - March 9, 2018 Category: Chemistry Source Type: research

Synthesis and characterization of TiC nanopowders via sol-gel and subsequent carbothermal reduction process
Publication date: Available online 7 March 2018 Source:Journal of Solid State Chemistry Author(s): Chen Xu, Fan Jinglian, Lu Qiong TiC nanocrystalline powders were synthesized by in-situ carbothermic reduction of Ti-O-C precursor under vacuum atmosphere. And the Ti-O-C precursor was formed by sol-gel method from titanium butyrate (TBOT) and sucrose. To obtain stable sol, TBOT was directly added into mixed solution which contains water, sucrose, acetic acid (AcOH) and acetylacetone (ACAC). This procedure is more convenient and economical because it avoids the use of alcohol which is used as solvent in most reports of alkox...
Source: Journal of Solid State Chemistry - March 9, 2018 Category: Chemistry Source Type: research

Structural transformations, water incorporation and transport properties of tin-substituted barium indate
Publication date: Available online 7 March 2018 Source:Journal of Solid State Chemistry Author(s): Kacper Cichy, Wojciech Skubida, Konrad Świerczek Incorporation of water into tin-substituted BaIn1-xSnxO3-δ (x = 0.1-0.3) is shown to influence crystal structure at room temperature, structural transformations at high temperatures and ionic transport properties of the materials. Increasing tin content stabilizes oxygen vacancy-disordered perovskite-type phase, which together with large changes of the unit cell volume occurring during hydration and dehydration processes, result in a complex structural behavior, as docu...
Source: Journal of Solid State Chemistry - March 9, 2018 Category: Chemistry Source Type: research

Cu-Based Metal-Organic Framework Thin Films: A Morphological and Photovoltaic Study
Publication date: Available online 8 March 2018 Source:Journal of Solid State Chemistry Author(s): Ruhollah Khajavian, Kamal Ghani This work explores the layer-by-layer (LbL) fabrication of [Cu2(bdc)2(bpy)]n thin films by using pyridine and acetic acid as capping agents onto mesoporous titania surface. While in the presence of acetic acid highly-ordered crystals with nanoplate morphology are formed, modulation with pyridine gives rise to formation of leaf-like crystals. In addition, processing sequence also matters when modulator is added. According to our results, modulators should be added to metal solution rather than ...
Source: Journal of Solid State Chemistry - March 9, 2018 Category: Chemistry Source Type: research

Surface speciation and interactions between adsorbed chloride and water on cerium dioxide
Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Sophie Sutherland-Harper, Robin Taylor, Jeff Hobbs, Simon Pimblott, Richard Pattrick, Mark Sarsfield, Melissa Denecke, Francis Livens, Nikolas Kaltsoyannis, Bruce Arey, Libor Kovarik, Mark Engelhard, John Waters, Carolyn Pearce Ceria particles with different specific surface areas (SSA) were contaminated with chloride and water, then heat treated at 500 and 900 °C to investigate sorption behaviour of these species on metal oxides. Results from x-ray photoelectron spectroscopy and infrared spectroscopy showed chloride and water...
Source: Journal of Solid State Chemistry - March 9, 2018 Category: Chemistry Source Type: research