Adsorption behavior and mechanism of arsenic on mesoporous silica modified by iron-manganese binary oxide (FeMnOx/SBA-15) from aqueous systems
In this study, SBA-15 was used to support FeMnOx in the synthesis of a novel arsenic (As) adsorbent (FeMnOx/SBA-15), and its characteristics under different reaction conditions, such as pH, temperature, presence of competing ions, and humic acid, were tested. The results showed that the contaminant adsorption efficiency of the novel adsorbent was better than that of FeMnOx, as the addition of SBA-15 decreased the agglomeration effect. Additionally, FeMnOx/SBA-15 underwent calcination to further enhance its performance. The state of iron and manganese in FeMnOx/SBA-15 and the corresponding arsenic removal efficiency were im...
Source: Journal of Hazardous Materials - September 15, 2019 Category: Environmental Health Source Type: research

Manganese doped magnetic cobalt ferrite nanoparticles for dye degradation via a novel heterogeneous chemical catalysis
Publication date: Available online 13 September 2019Source: Materials Chemistry and PhysicsAuthor(s): Ruyan Dou, Hao Cheng, Jianfeng Ma, Sridhar KomarneniAbstractComposite cobalt ferrites doped with manganese were successfully synthesized via sol-gel auto combustion method and were annealed at a temperature of 400°C. The catalytic activity of a series of catalysts at different manganese contents was studied using the sodium bisulfite-assisted system for degradation of water-soluble organic pollutants such as orange Ⅱ (OⅡ). The obtained ferrite compositions were characterized by X-ray diffraction (XRD), field emissi...
Source: Materials Chemistry and Physics - September 14, 2019 Category: Materials Science Source Type: research

Biomonitorization of metal ions in the serum of Iranian patients treated with fixed orthodontic appliances in comparison with controls in eastern Iran.
uri B Abstract The present study aimed to assess the level of metal ions [chromium (Cr), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), and zinc (Zn)] in the serum of patients with fixed orthodontic appliances. One hundred samples (32 males, 68 females) were collected from patients undergoing fixed orthodontic treatment for different periods. A reference (control) group (24 males, 16 females) who had no appliances was used to properly evaluate the changes in the level of these elements in orthodontic appliance users. The element concentrations were measured using inductively coupled plasma mass spectrometry ...
Source: Environmental Science and Pollution Research International - September 14, 2019 Category: Environmental Health Authors: Moghadam MG, Hoshyar R, Mikulewicz M, Chojnacka K, Bjørklund G, Pen JJ, Azadi NA, Pirsaheb M, Dashtaki M, Mansouri B Tags: Environ Sci Pollut Res Int Source Type: research

Effect of thermal annealing on physiochemical properties of spray-deposited β-MnO2 thin films for electrochemical supercapacitor
Publication date: Available online 12 September 2019Source: Journal of Electroanalytical ChemistryAuthor(s): A.M. Teli, S.A. Bekanalkar, D.S. Patil, S.A. Pawar, T.D. Dongale, J.C. Shin, H.J. Kim, P.S. PatilAbstractThe present work reports spray-deposited manganese oxide (MnO2) thin films annealed at different temperatures (200, 300, and 400 °C). X-ray diffraction shows the formation of a polycrystalline nature with a tetragonal crystal structure and a pyrolusite (β) MnO2 phase. X-ray photoelectron spectroscopy confirms the presence of Mn in the 4+ oxidation state. Field-emission scanning electron microscopy imag...
Source: Journal of Electroanalytical Chemistry - September 13, 2019 Category: Chemistry Source Type: research

Synthesis of flexible cross-linked cryptomelane-type manganese oxide nanowire membranes and their application for U(VI) and Eu(III) elimination from solutions
Publication date: 1 February 2020Source: Chemical Engineering Journal, Volume 381Author(s): Ling Yin, Baowei Hu, Li Zhuang, Dong Fu, Jiaxing Li, Tasawar Hayat, Ahmed Alsaedi, Xiangke WangAbstractThe efficient elimination of radionuclides from aqueous solutions is crucial for environmental protection from radionuclides’ pollution. The construction of octahedral molecular sieve (OMS-2) nanoporous membranes is of great technical importance for different kinds of applications like purification filter, catalysts, oil separation, seawater desalination and pollutant elimination. The facile synthesis of freestanding material...
Source: Chemical Engineering Journal - September 13, 2019 Category: Chemistry Source Type: research

CO2 activation by manganese pincer complexes through different modes of metal –ligand cooperation
Dalton Trans., 2019, Advance Article DOI: 10.1039/C9DT03088C, CommunicationAmit Kumar, Prosenjit Daw, Noel Angel Espinosa-Jalapa, Gregory Leitus, Linda J. W. Shimon, Yehoshoa Ben-David, David Milstein Activation of CO2 by manganese pincer complexes using two different modes of metal –ligand cooperativity (amido/amino mode and dearomatization/aromatization mode) is reported. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - September 13, 2019 Category: Chemistry Authors: Amit Kumar Source Type: research

Nanorods to hexagonal nanosheets of CuO-doped manganese oxide nanostructures for higher electrochemical supercapacitor performance
Publication date: Available online 11 September 2019Source: Colloids and Surfaces B: BiointerfacesAuthor(s): H.M. Yadav, G.S. Ghodake, D.-Y. Kim, Sivalingam Ramesh, N.C. Maile, D.S. Lee, S.K. ShindeAbstractIn this work, the extraordinary properties of CuO addition on the morphology and supercapacitive performance of Mn2O3 electrodes were demonstrated. Concisely, CuO/Mn2O3 thin films were prepared by an easy and inexpensive successive ionic layer adsorption and reaction (SILAR) method. The prepared thin films were characterized by various sophisticated physiochemical systems. The results demonstrated formation of Mn2O3 thin...
Source: Colloids and Surfaces B: Biointerfaces - September 13, 2019 Category: Biochemistry Source Type: research

Transition-Metal-Promoted Oxidative Cyclization To Give 1,2,4-Trisubstituted Carbazole Scaffolds
Synthesis DOI: 10.1055/s-0039-1690681 Herein, we describe the synthesis of a 1,2,4-trisubstituted carbazole core from 5-(1H-indol-3-yl)-3-oxopentanoic acid esters or amides. For oxidative cyclization, we tested two different approaches. First, we used manganese triacetate as a conventional moderate oxidizer to ensure the radical course of the reaction. Second, we examined the use of a more complex oxidizing agent I2/Me(OTf)3. In both cases, formation of a fused-ring carbazole system with a 2-hydroxyl and 1-carboxylic substituent were observed. In connection with the formation of an unexpected reaction intermediate, mechani...
Source: Synthesis - September 13, 2019 Category: Chemistry Authors: Szewczyk, Milena Ryczkowska, Ma łgorzata Makowiec, S ławomir Tags: paper Source Type: research

Annual variability of dissolved manganese in Northeast Pacific along Line-P: 2010–2013
Publication date: Available online 11 September 2019Source: Marine ChemistryAuthor(s): Nari Sim, Kristin J. OriansAbstractThe distribution of dissolved manganese (dMn) in the northeast Pacific across the Line-P transect was evaluated to investigate the mechanisms responsible for the spatial and temporal variability of dMn. A total of 299 filtered seawater samples (
Source: Marine Chemistry - September 12, 2019 Category: Chemistry Source Type: research

Promotional effects of Fe on manganese oxide octahedral molecular sieves for alkali-resistant catalytic reduction of NOx: XAFS and in situ DRIFTs study
Publication date: 1 February 2020Source: Chemical Engineering Journal, Volume 381Author(s): Kaiwen Zha, Chong Feng, Lupeng Han, Hongrui Li, Tingting Yan, Sanchai Kuboon, Liyi Shi, Dengsong ZhangAbstractCurrently, selective catalytic reduction (SCR) of NOx with NH3 in the presence of alkali metal ions by using vanadium-free catalysts is still a big challenge for the removal of NOx for stationary sources. In this work, improved reduction of NOx with NH3 in the presence of alkali metal ions over novel Fe-doped manganese oxide octahedral molecular sieve (OMS-2) catalysts has been demonstrated and the promotional effects of Fe ...
Source: Chemical Engineering Journal - September 12, 2019 Category: Chemistry Source Type: research

[ASAP] Iodine/Manganese Dual Catalysis for Oxidative Dehydrogenation Coupling of Amines with Thiols
Organic LettersDOI: 10.1021/acs.orglett.9b02545 (Source: Organic Letters)
Source: Organic Letters - September 12, 2019 Category: Chemistry Authors: Shengping Liu †, Zaojuan Qi‡, Zhang Zhang*†, and Bo Qian*‡ Source Type: research

Mn-doped ceria/reduced graphene oxide nanocomposite as an efficient oxygen reduction reaction catalyst
Publication date: Available online 10 September 2019Source: Journal of Electroanalytical ChemistryAuthor(s): I. Hota, S. Soren, B.D. Mohapatra, A.K. Debnath, K.P. Muthe, K.S.K. Varadwaj, P. ParhiAbstractThe platinum based catalyst exhibits good “oxygen reduction reaction” (ORR) activity while its lower methanol tolerance and high cost obstructs its commercialization. In order to replace this precious metal containing ORR catalysts, transition metal oxides and their composites have been extensively studied. Among the various transition metal oxides, oxides of manganese have attracted massive interest because of ...
Source: Journal of Electroanalytical Chemistry - September 11, 2019 Category: Chemistry Source Type: research

Synthesis of aluminum-doped ion-sieve manganese oxides powders with enhanced adsorption performance
Publication date: Available online 10 September 2019Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Guotai Zhang, Jingze Zhang, Yuan Zhou, Guicai Qi, Yongmin Wu, Chunxi Hai, Weiping TangAbstractAl-doped lithium manganese oxides Li1.6AlxMn1.6-xO4 were successfully prepared by sol–gel synthesis and solid state reactions. Protonated samples were obtained by further acid treatment. Experiments were performed to study the effects of physical properties including the Al3+ doping content x and calcination temperature for optimizing the synthesis of H1.6AlxMn1.6-xO4 ion-sieve pursing nice p...
Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - September 11, 2019 Category: Chemistry Source Type: research

Mn-catalyzed paired electrochemical facile oxychlorination of styrenes via oxygen reduction reaction
Chem. Commun., 2019, Accepted Manuscript DOI: 10.1039/C9CC06746A, CommunicationSiyu Tian, Xiaofei Jia, Ling Wang, Baoying Li, Siyuan Liu, Li Ma, Wei Gao, Wei yingqin, Jianbin Chen Reported herein is electrochemical engendering chlorine radical by manganese catalyst at a controllable pattern with cheap commodity MgCl2 as chlorine source. In combination with oxygen reduction reaction, chloroacetophenones were synthesized... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - September 11, 2019 Category: Chemistry Authors: Siyu Tian Source Type: research

The effect of reduced temperatures on microstructure development in tensile tested high-manganese steel
Publication date: Available online 9 September 2019Source: Materials Science and Engineering: AAuthor(s): Joanna Kowalska, Janusz Ryś, Grzegorz Cios, Wiktor BednarczykAbstractThe current research is part of a project covering several grades of high-manganese steels (20–26 wt% Mn) with different chemical compositions, which were deformed at room and reduced temperatures. In the present paper, the microstructure development is analyzed at the onset of plastic deformation in Fe–Mn–Al–Si steel containing 21.2 wt% Mn. The examination was conducted under conditions of lowering the deformation tempera...
Source: Materials Science and Engineering: A - September 11, 2019 Category: Materials Science Source Type: research

Visible-light-initiated manganese-catalyzed Giese addition of unactivated alkyl iodides to electron-poor olefins.
Abstract Herein, we report a mild protocol for direct visible-light-initiated Giese addition of unactivated alkyl iodides to electron-poor olefins (Michael acceptors) with catalysis by decacarbonyl dimanganese, Mn2(CO)10, an inexpensive earth-abundant-metal catalyst. This protocol is compatible with a wide array of sensitive functional groups and has a broad substrate scope with regard to both the alkyl iodide and the Michael acceptor. PMID: 31509118 [PubMed - as supplied by publisher] (Source: Chemical Communications)
Source: Chemical Communications - September 11, 2019 Category: Chemistry Authors: Dong J, Wang X, Wang Z, Song H, Liu Y, Wang Q Tags: Chem Commun (Camb) Source Type: research

Catalytic Cleavage of Amide C-N Bond: Scandium, Manganese, and Zinc Catalysts for Esterification of Amides.
Abstract Amide C-N bonds are thermodynamically stable and their fission, such as by hydrolysis and alcoholysis, is considered a long-challenging organic reaction. In general, stoichiometric chemical transformations of amides into the corresponding esters and acids require harsh conditions, such as strong acids/bases at a high reaction temperature. Accordingly, the development of catalytic reactions that cleave not only primary and secondary amides, but also tertiary amides in mild conditions, is in high demand. Herein, we surveyed typical stoichiometric transformations of amides, and highlight our recent achieveme...
Source: Chemical Record - September 11, 2019 Category: Chemistry Authors: Mashima K, Nishii Y, Nagae H Tags: Chem Rec Source Type: research

Trace element concentration changes in brain tumors: a review.
In conclusion, altered trace element levels differ amongst different tumor types, as well as malignancy grades. Consequently, it is impossible to compare data from these studies, and available data is still considerably inconclusive. Ideally, future studies should have a sufficient samples size, compare different tumor types, and compare tumors with adjacent healthy tissue as well as with samples from unaffected matched brains. This article is protected by copyright. All rights reserved. PMID: 31509337 [PubMed - as supplied by publisher] (Source: Anatomical Record)
Source: Anatomical Record - September 11, 2019 Category: Anatomy Authors: Cilliers K, Muller CJF, Page BJ Tags: Anat Rec (Hoboken) Source Type: research

Effects of dietary fenugreek seed extracts on growth performance, plasma biochemical parameters, lipid metabolism, Nrf2 antioxidant capacity and immune response of juvenile blunt snout bream (Megalobrama amblycephala)
Publication date: November 2019Source: Fish & Shellfish Immunology, Volume 94Author(s): Heng Yu, Hualiang Liang, Mingchun Ren, Ke Ji, Qiang Yang, Xianping Ge, Bingwen Xi, Liangkun PanAbstractDietary administration of some plant-derived substances have been proved of great economic value in aquaculture. In order to investigate the effects of dietary fenugreek seed extracts (FSE) on juvenile blunt snout bream (Megalobrama amblycephala), a feeding trial was conducted for 8 weeks. The results showed that final weight (FW), weight gain (WG), feed conversion ratio (FCR) and specific growth rate (SGR) were not significantly a...
Source: Fish and Shellfish Immunology - September 10, 2019 Category: Biology Source Type: research

Influence of the Incorporation of Fe and Mn on the Nanostructure and Reactivity of Catalysts Based on Tungstated Zirconia
Publication date: Available online 9 September 2019Source: Catalysis TodayAuthor(s): M.L. Hernandez-Pichardo, P. Del Angel, J.A. Montoya de la FuenteAbstractTungstated zirconia catalysts promoted with different contents of Fe and Mn (ZWFM) were synthesized by the coprecipitation method. The materials were characterized by XRD, Raman, XPS, and HAADF-STEM. Platinum was added by impregnation and reduced in situ before the catalytic test. The catalytic evaluation was performed on the Pt/ZWFM samples in the hydroisomerization of n-hexane at 260 °C. The characterization results indicate that the promoters can be locat...
Source: Catalysis Today - September 10, 2019 Category: Chemistry Source Type: research

The effect of carbon quantum dots on the electrocatalytic hydrogen evolution reaction of manganese –nickel phosphide nanosheets
J. Mater. Chem. A, 2019, Advance Article DOI: 10.1039/C9TA06944E, PaperWeiwu Chen, Zhaojun Qin, Brian McElhenny, Fanghao Zhang, Shuo Chen, Jiming Bao, Zhiming M. Wang, Hai-Zhi Song, Zhifeng Ren Transition-metal phosphides (TMPs) are good electrocatalysts for the hydrogen evolution reaction (HER) due to their high catalytic efficiency and low cost. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - September 10, 2019 Category: Chemistry Authors: Weiwu Chen Source Type: research

[ASAP] Strontium Manganese Oxide Getter for Capturing Airborne Cr and S Contaminants in High-Temperature Electrochemical Systems
ACS Applied Materials& InterfacesDOI: 10.1021/acsami.9b09677 (Source: ACS Applied Materials and Interfaces)
Source: ACS Applied Materials and Interfaces - September 10, 2019 Category: Materials Science Authors: Junsung Hong †, Ashish N. Aphale†, Su Jeong Heo†‡, Boxun Hu†, Michael Reisert†, Seraphim Belko†, and Prabhakar Singh*† Source Type: research

[ASAP] Manganese Mapping Using a Fluorescent Mn < sup > 2+ < /sup > Sensor and Nanosynchrotron X-ray Fluorescence Reveals the Role of the Golgi Apparatus as a Manganese Storage Site
Inorganic ChemistryDOI: 10.1021/acs.inorgchem.9b01389 (Source: Inorganic Chemistry)
Source: Inorganic Chemistry - September 10, 2019 Category: Chemistry Authors: Sayani Das †?, Asuncion Carmona‡§?, Kaustav Khatua†?, Francesco Porcaro‡§, Andrea Somogyi?, Richard Ortega‡§, and Ankona Datta*† Source Type: research

One-pot Synthesis of Manganese Oxides and Cobalt Phosphides Nanohybrids with Abundant Hetero-interfaces in Amorphous Matrix for Efficient Hydrogen Evolution in Alkaline Solution
J. Mater. Chem. A, 2019, Accepted Manuscript DOI: 10.1039/C9TA07601H, PaperDan Zhou, Zheng Wang, Xia Long, Yiming An, He Lin, Zheng Xing, Ming Ma, Shihe Yang Transition metal phosphides (TMPs), albeit promising as hydrogen evolution reaction (HER) catalysts, suffer from the sluggish water dissociation step in alkaline solution. Metal oxides(hydroxides) have been employed to address this... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - September 10, 2019 Category: Chemistry Authors: Dan Zhou Source Type: research

A commensurately modulated crystal structure and the physical properties of a novel polymorph of the caesium manganese phosphate CsMnPO4
A novel modification of the CsMnPO4 β -phase was achieved by hydrothermal synthesis at 553   K. The compound crystallizes in the monoclinic system with the basic unit-cell parameters a = 11.0699   (4), b = 11.0819   (6), c = 9.1106   (3)   Å , γ = 119.480   (5)o; the modulation vectors are q1 = 0.4a* and q2 = 0.4b*. The structure was determined based on single-crystal X-ray diffraction data obtained from a pseudo-merohedral twin using a superspace approach in the (3   +   2)D symmetry group P11a(a1,b1,0)0(a2,b2,0)0 and refined to R = 0.083 for 10   266 reflections with I>...
Source: Acta Crystallographica Section B - September 10, 2019 Category: Chemistry Authors: Bolotina, N. Yakubovich, O. Shvanskaya, L. Dimitrova, O. Volkov, A. Vasiliev, A. Tags: hydrothermal synthesis modulated crystal structure phosphates β -tridymite derivatives polymorphism transition metals morphotropic series antiferromagnetism pseudo-merohedral twins research papers Source Type: research

One-pot synthesis, crystal structure and theoretical calculations of a dinuclear Mn(III) complex with in-situ generated O,N,O- and O,N-donor dichelating hydrazone ligand
Publication date: 5 January 2020Source: Journal of Molecular Structure, Volume 1199Author(s): Elaheh Pousaneh, Somayeh Sadighian, Rahman Bikas, Hassan Hosseini-Monfared, Ahmad Sousaraei, Milosz Siczek, Tadeusz LisAbstractA new dinuclear Mn(III) complex, [Mn2(L)2(CH3OH)2] (1), was synthesized by one-pot reaction of 2-aminobenzoylhydrazide, salicylaldehyde and Mn(OAc)2·4H2O in methanol (H3L = (E)-N'-(2-hydroxybenzylidene)-2-((E)-(2-hydroxybenzylidene)amino)benzohydrazide). The obtained complex was characterized by elemental analysis, spectroscopic methods, thermogravimetric analysis (TGA) and single crystal X-ray...
Source: Journal of Molecular Structure - September 8, 2019 Category: Molecular Biology Source Type: research

Manganese-doped cesium iodide nanoparticles for multi-model bioimaging
In this study, manganese doped cesium iodide (CsI:Mn2+) nanoparticles (NPs) were synthesized via the hot injection method, while retaining their optoelectronic attributes. Results corroborate manganese doping has no noticeable effect on blue emission of CsI NPs and shows well-dispersed particles with an average size of 10 nm. Due to the strong fluorescence, the CsI:Mn2+ NPs can be used for cell imaging, and have demonstrated the exceptional computed X-ray tomography (CT) and magnetic resonance imaging (MRI) imaging potential as compared to the conventional clinical and nanosized manganese contrast agents. These findings ...
Source: Materials Letters - September 7, 2019 Category: Materials Science Source Type: research

Study of the optical properties of Zn doped Mn spinel ferrite nanocrystals shows multiple emission peaks in the visible range –A promising soft ferrite nanomaterial for deep blue LED
Publication date: Available online 7 September 2019Source: Journal of Molecular StructureAuthor(s): Simi Debnath, Ratan DasAbstractHere, in this report, chemical co-precipitation method has been used for the synthesis of zinc doped manganese spinel ferrite nanocrystals, having the chemical formula of Mn0.5Zn0.5Fe2O4. The structural and morphological analysis have been carried out using X-ray diffraction (XRD) analysis and High Resolution Transmission Microscope (HRTEM). XRD analysis has revealed the formation of pure phase face centred cubic (FCC) spinel ferrite nanocrystals with the average size of 28 nm approximately. El...
Source: Journal of Molecular Structure - September 7, 2019 Category: Molecular Biology Source Type: research

Highly selective oxidation of amines to imines by Mn2O3 catalyst under eco-friendly conditions
Publication date: Available online 5 September 2019Source: Chinese Chemical LettersAuthor(s): Fushan Chen, Tao Yang, Songlin Zhao, Taotao Jiang, Lu Yu, Houfeng Xiong, Liu Liu, Jian Zhou, Pengxiang Tu, Jun Ni, Qunfeng Zhang, Xiaonian LiAbstractEnhancing the selectivity of imines for the oxidative self-coupling of primary amines was found to be challenging in the heterogeneous catalysis. Three different manganese oxides (M-3, M-4, M-5) were synthesized by controlling the calcination temperature using a simple template-free oxalate route. The prepared manganese oxides were systematically characterized using XRD, N2 sorption, ...
Source: Chinese Chemical Letters - September 7, 2019 Category: Chemistry Source Type: research

Superior activity of iron–manganese supported on kaolin for NO abatement at low temperature
Publication date: Available online 5 September 2019Source: Journal of Environmental SciencesAuthor(s): Xiaobo Wang, Jie Zhou, Tong Zhao, Keting Gui, Jia Wang, Hywel R. ThomasAbstractA series of Fe–Mn catalysts was prepared using different supports (kaolin, diatomite, and alumina) and used for NO abatement via low-temperature NH3-selective catalytic reduction (SCR). The results showed that 12Fe–10Mn/Kaolin (with the concentration of Fe and Mn 12 and 10 wt.%, respectively) exhibited the highest activity, and more than 95.8% NO conversion could be obtained within the wide temperature range of 120–300°C...
Source: Journal of Environmental Sciences - September 7, 2019 Category: Environmental Health Source Type: research

Effect of fluoroethylene carbonate as an electrolyte solvent in the LiNi0.5Mn1.5O4/Li4Ti5O12 cell
In this study, we adopt the metathesis reaction to illustrate the relationship between gradual changes in the SEI film and swelling problems during cycling performance. Moreover, the reduction mechanisms of FEC proposed in this study have provided a better understanding of the key issue on electrolyte system that for commercial LiNi0.5Mn1.5O4/Li4Ti5O12 cell. (Source: Journal of Alloys and Compounds)
Source: Journal of Alloys and Compounds - September 6, 2019 Category: Chemistry Source Type: research

Visible-Light-Initiated Manganese-Catalyzed Giese Addition of Unactivated Alkyl Iodides to Electron-Poor Olefins
Chem. Commun., 2019, Accepted Manuscript DOI: 10.1039/C9CC06400A, CommunicationQingmin Wang, Jianyang Dong, Xiaochen Wang, Zhen wang, Hongjian Song, Yu-Xiu Liu Herein, we report a mild protocol for direct visible-light-initiated Giese addition of unactivated alkyl iodides to electron-poor olefins (Michael acceptors) with catalysis by decacarbonyl dimanganese, Mn2(CO)10, an inexpensive earth-abundant-metal catalyst.... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - September 6, 2019 Category: Chemistry Authors: Qingmin Wang Source Type: research

IJERPH, Vol. 16, Pages 3281: Genotypic Variation in Nickel Accumulation and Translocation and Its Relationships with Silicon, Phosphorus, Iron, and Manganese among 72 Major Rice Cultivars from Jiangsu Province, China
This study investigated the variation in Ni accumulation and translocation, and also multi-element (silicon (Si), phosphorus (P), iron (Fe), and manganese (Mn)) uptake and transport among 72 rice cultivars from Jiangsu Province, China, that were grown under hydroponic conditions. Our results showed a 2.2-, 4.2-, and 5.3-fold variation in shoot Ni concentrations, root Ni concentrations, and translocation factors (TFs) among cultivars, respectively. This suggests that Ni accumulation and translocation are significantly influenced by the genotypes of the different rice cultivars. Redundancy analysis of the 72 cultivars reveal...
Source: International Journal of Environmental Research and Public Health - September 6, 2019 Category: Environmental Health Authors: Ya Wang Chengqiao Shi Kang Lv Youqing Li Jinjin Cheng Xiaolong Chen Xianwen Fang Xiangyang Yu Tags: Article Source Type: research

Synergistic Control of Structural Disorder and Surface Bonding Nature to Optimize the Functionality of Manganese Oxide as an Electrocatalyst and a Cathode for Li –O2 Batteries
An efficient methodology to optimize the oxygen electrocatalyst and Li –O2 battery performance of metal oxide is developed via synergistic control of structural disorder and surface bonding nature. The simultaneous amorphization and iodate anchoring are effective in improving electrocatalyst/electrode functionalities of δ‐MnO2 via stabilization of Mn3+ state, enhanced interaction with oxygen, increased surface electron density, and improved charge transfer kinetics. AbstractAn efficient way to improve the electrocatalyst and Li –O2 battery performances of metal oxide is developed by an exquisite synergi...
Source: Small - September 6, 2019 Category: Nanotechnology Authors: Xiaoyan Jin, Mihui Park, Seung ‐Jae Shin, Yujin Jo, Min Gyu Kim, Hyungjun Kim, Yong‐Mook Kang, Seong‐Ju Hwang Tags: Full Paper Source Type: research

Synthesis, characterization and luminescence properties of manganese phosphate Mn3(PO4)2
Publication date: Available online 5 September 2019Source: Materials Today: ProceedingsAuthor(s): A. Bouddouch, E. Amaterz, R. Haounati, Y. Naciri, A. Taoufyq, B. Bakiz, F. Guinneton, S. Villain, J.R. Gavarri, A. BenlhachemiAbstractA great deal of research has concerned the study of the photoluminescent properties of new materials. These studies are motivated by many potential applications in a wide variety of fields such as optical telecommunications, lasers, lighting, radiation detection and photovoltaic. In the present work, we investigate the structural, microstructural, vibrational and luminescence properties of the s...
Source: Materials Today: Proceedings - September 5, 2019 Category: Materials Science Source Type: research

Primary Amides to Amines or Nitriles: Dual Role by a Single Catalyst
We report a manganese-catalyzed hydrosilylative reduction of various primary amides into amines (25 examples). On simple modification of reaction conditions such as in the presence of a catalytic amount of... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Chem. Commun. latest articles)
Source: RSC - Chem. Commun. latest articles - September 5, 2019 Category: Chemistry Authors: Swadhin K Mandal Source Type: research

[ASAP] Low-Temperature Benzene Abatement over Active Manganese Oxides with Abundant Catalytic Sites
Industrial& Engineering Chemistry ResearchDOI: 10.1021/acs.iecr.9b03370 (Source: Industrial and Engineering Chemical Research)
Source: Industrial and Engineering Chemical Research - September 5, 2019 Category: Chemistry Authors: Ke Xie †, Dongrun Xu†, Chao Li†, Xiaona Liu†, Xiaolei Hu†, Zhen Ma†, Xingfu Tang†‡, and Yaxin Chen*† Source Type: research

Segment-specific and direction-dependent transport of cadmium and manganese in immortalized S1, S2, and S3 cells derived from mouse kidney proximal tubules.
Authors: Fujishiro H, Hamao S, Isawa M, Himeno S Abstract The kidney proximal tubule is a target of many renal toxicants, including cadmium (Cd), and also a place of reabsorption of essential metals in glomerular filtrate to systemic circulation. Although the mechanisms of metal transport in the convoluted proximal tubule (S1 and S2 segments) and the straight proximal tubule (S3 segment) may differ, little is known about the segment-specific modes of metal transport. Here, we utilized immortalized cell lines derived from the S1, S2, and S3 segments of mouse kidney proximal tubules, and examined the segment-specific...
Source: Journal of Toxicological Sciences - September 4, 2019 Category: Toxicology Tags: J Toxicol Sci Source Type: research

Corrosion of 16Cr12MoWSVNbB (EP-823) steel in the LiСl-KCl melt containing CeCl3, NdCl3 and UCl3
Publication date: 30 November 2019Source: Journal of Alloys and Compounds, Volume 811Author(s): E.V. Nikitina, N.A. Kazakovtseva, E.A. KarfidovAbstractThe present work is aimed at the study of the 16Cr12MoWSVNbB (EP-823) steel corrosion in the molten LiCl–KCl eutectic with different CeCl3, NdCl3 and UCl3 content.The CeCl3 and NdCl3 concentrations varied within the range of 0.1–1.0 mol. %, and the UCl3 concentration was 1 mol. %. The temperature of the experiments was 500–650 °C. The composition of the melts under study was similar to the composition of real electrolytes while the nitride spent n...
Source: Journal of Alloys and Compounds - September 4, 2019 Category: Chemistry Source Type: research

Therapeutic Effect of Deferrioxamine Conjugated to PEGylated Gold Nanoparticles and Complexed with Mn(II) Beside the CT Scan and MRI Diagnostic Studies
Publication date: Available online 3 September 2019Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Fatemeh Yaghoobi, Reza Karimi Shervedani, Mostafa Torabi, Amirhosein Kefayat, Fatemeh Ghahremani, Amin FarzadniyaAbstractSynthesis, characterization, and in-vitro/in-vivo examinations of a theranostic system with novel formulation and straightforward synthesis method are reported in this work. Deferrioxamine-manganese(II), as a theranostic complex (Deferrioxamine as therapeutic and manganese(II) as MRI imaging agent) is conjugated in adjacent to folic acid with the PEGylated gold nanoparticl...
Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - September 4, 2019 Category: Chemistry Source Type: research

Boosting Zn-ion Storage Capability of Birnessite Manganese Oxide Nanoflorets by La3+ Intercalation
J. Mater. Chem. A, 2019, Accepted Manuscript DOI: 10.1039/C9TA08418E, PaperHaozhe Zhang, Qiyu Liu, Jing Wang, Kunfeng Chen, Dongfeng Xue, Jie Liu, Xihong Lu The development of aqueous rechargeable Zn-ion batteries (ZIBs) with high-capacity and good rate capability has turned the effort on the cathode limit. Herein, birnessite δ-MnO2 nanoflorets with La3+ intercalation (LMO)... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - September 4, 2019 Category: Chemistry Authors: Haozhe Zhang Source Type: research

CO2 Activation by Manganese Pincer Complexes Through Different Modes of Metal-Ligand Cooperation
We report here the activation of CO2 using two Mn-PNN pincer complexes that can exhibit different modes of metal-ligand cooperation ̶ amido/amino mode that involves [1,2]-activation of CO2 and dearomatization/... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - September 4, 2019 Category: Chemistry Authors: Amit Kumar Source Type: research

Diastereoselective diazenyl formation: the key for manganese-catalysed alcohol conversion into (E)-alkenes
Dalton Trans., 2019, Accepted Manuscript DOI: 10.1039/C9DT03379C, PaperLuis Miguel Azofra, Albert Poater The proposed reaction mechanism for the unprecedented direct transformation of primary alcohols into alkenes catalysed by Mn(I)-PNP complexes consists of two cycles. First, the acceptorless dehydrogenation of the alcohol into... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Dalton Trans. latest articles)
Source: RSC - Dalton Trans. latest articles - September 4, 2019 Category: Chemistry Authors: Luis Miguel Azofra Source Type: research

The effect of carbon quantum dots on electrocatalytic hydrogen evolution reaction of manganese-nickel phosphide nanosheets
J. Mater. Chem. A, 2019, Accepted Manuscript DOI: 10.1039/C9TA06944E, PaperWeiwu Chen, Zhaojun Qin, Brian McElhenny, Fanghao Zhang, Shuo Chen, Jiming Bao, Zhiming M. Wang, Hai-Zhi Song, Zhifeng Ren Transition-metal phosphides (TMPs) are good electrocatalysts for hydrogen evolution reaction (HER) due to their high catalytic efficiency and low cost. Carbon quantum dots (CQDs) deposited on top of TMPs could... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - J. Mater. Chem. latest articles)
Source: RSC - J. Mater. Chem. latest articles - September 4, 2019 Category: Chemistry Authors: Weiwu Chen Source Type: research

Integrating Fluorinated Polymer and Manganese ‐Layered Double Hydroxide Nanoparticles as pH‐activated 19F MRI Agents for Specific and Sensitive Detection of Breast Cancer
In this study, a novel hybrid19F MRI agent for pH ‐sensitive detection of breast cancer tissues is reported, a composite system designed by conjugating a perfluoropolyether onto the surface of manganese‐incorporated layered double hydroxide (Mn‐LDH@PFPE) nanoparticles. The19F NMR/MRI signals from aqueous solutions of Mn ‐LDH@PFPE nanoparticles are quenched at pH 7.4, but “turned on” following a reduction in pH to below 6.5. This is due to partial dissolution of Mn2+ from the Mn ‐LDH nanoparticles and subsequent reduction in the effect of paramagnetic relaxation. Significantly, in vivo experiments reve...
Source: Small - September 4, 2019 Category: Nanotechnology Authors: Cheng Zhang, Li Li, Felicity Y. Han, Xinying Yu, Xiao Tan, Changkui Fu, Zhi Ping Xu, Andrew K. Whittaker Tags: Communication Source Type: research

Tensile and fracture behaviors of austenitic high-manganese steels subject to different hydrogen embrittlement test methods
Publication date: Available online 2 September 2019Source: Materials Science and Engineering: AAuthor(s): Sang-In Lee, Ji-Min Lee, Seung-Yong Lee, Han-Jin Kim, Jin-Yoo Suh, Jae-Hyeok Shim, Un-Bong Baek, Seung-Hoon Nahm, Joonho Lee, Byoungchul HwangAbstractThe hydrogen-embrittlement susceptibility of austenitic high-manganese steels according to different hydrogen-charging test methods was discussed in terms of hydrogen-embrittlement process and fracture mechanism. Ex-situ electrochemical and high-pressure thermal hydrogen-charging methods exhibited a difference in hydrogen-embrittlement susceptibility because they affect t...
Source: Materials Science and Engineering: A - September 3, 2019 Category: Materials Science Source Type: research

[ASAP] Nanorod Manganese Oxide as an Efficient Heterogeneous Catalyst for Hydration of Nitriles into Amides
Industrial& Engineering Chemistry ResearchDOI: 10.1021/acs.iecr.9b04128 (Source: Industrial and Engineering Chemical Research)
Source: Industrial and Engineering Chemical Research - September 3, 2019 Category: Chemistry Authors: Hai Wang †, Yeqing Wang*‡, Hua Xu‡, Hang Zhou†, Liang Wang†, Xiangju Meng‡, and Feng-Shou Xiao*†‡ Source Type: research

[ASAP] Manganese Hexacyanomanganate as a Positive Electrode for Nonaqueous Li-, Na-, and K-Ion Batteries
The Journal of Physical Chemistry CDOI: 10.1021/acs.jpcc.9b06338 (Source: The Journal of Physical Chemistry C)
Source: The Journal of Physical Chemistry C - September 3, 2019 Category: Chemistry Authors: Viktor Renman †§, Dickson O. Ojwang‡§, Cesar Pay Go´mez†, Torbjo¨rn Gustafsson†, Kristina Edstro¨m†, Gunnar Svensson‡, and Mario Valvo*† Source Type: research

Continuous Flow/Waste-Minimized Synthesis of Benzoxazoles catalysed by Heterogeneous Manganese systems
Green Chem., 2019, Accepted Manuscript DOI: 10.1039/C9GC01641D, PaperLuigi Vaccaro, Francesco Ferlin, Mitchell Kenneth van der Hulst, Stefano Santoro, Daniela Lanari Herein we present our results on the development of a waste minimized protocol for the synthesis of 2-arylbenzoxazoles 6 in continuous flow. Manganese-based heterogeneous catalysts were used in combination with... The content of this RSS Feed (c) The Royal Society of Chemistry (Source: RSC - Green Chem. latest articles)
Source: RSC - Green Chem. latest articles - September 2, 2019 Category: Chemistry Authors: Luigi Vaccaro Source Type: research