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Nutrition: Potassium
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Total 2585 results found since Jan 2013.
Harnessing the Peterson Reaction for the Stereospecific Synthesis of Z-Vinyl Ethers
Chemistry. 2023 Sep 21:e202302708. doi: 10.1002/chem.202302708. Online ahead of print.ABSTRACTVinyl ethers are valuable synthetic intermediates which are also found as natural products, including aflatoxins, rifamycins and plasmalogens. The latter are ubiquitous phospholipids in human cells and contain a vinyl ether moiety with specifically Z configuration. Although numerous methods are available for synthesis of vinyl ethers, there is a lack of methods for obtaining Z isomers of molecules of the type RCH=CHOR' that are applicable to plasmalogens. A variant of the Peterson reaction is described that generates such molecule...
Source: Chemistry - September 21, 2023 Category: Chemistry Authors: Jay Tromans Bian Zhang Bernard Thomas Golding Source Type: research
Design of a potassiophilic 3D conductive scaffold potassium anode (3D-CTZ@K) with dendrite-free and high energy-power density in potassium metal batteries
J. Mater. Chem. A, 2023, Advance Article DOI: 10.1039/D3TA03427E, PaperDong-Ting Zhang, Mao-Cheng Liu, Min-Peng Li, Hao Chen, Chen-Yang Li, Yu-Xia Hu, Ling-Bin Kong, Xiang-Yun Zhang, Bing-Ni Gu, Ming-Jin Liu, Kun Zhao, Jun-Qiang Ren, Zi-Zhou Yuan, Yu-Lun Chueh A 3D-CTZ@K anode was constructed by infusion of molten K metal into a 3D-CTZ scaffold to achieve extraordinary cycle stability with high rate capability. The 3D-CTZ@K//PB full battery exhibits an unprecedented energy and power densities. To cite this article before page numbers are assigned, use the DOI form of citation above. The content of this RSS Feed (c) The Roy...
Source: RSC - J. Mater. Chem. latest articles - September 19, 2023 Category: Chemistry Authors: Dong-Ting Zhang Source Type: research
Potassium stearate doped PEDOT:PSS improves the performance of inverted perovskite solar cells
Chem. Commun., 2023, Advance Article DOI: 10.1039/D3CC03539E, CommunicationYing Li, Yanqing Yao, Yuanlin Yang, Xusheng Zhao, Wan Cheng, Banghui Chen, Lijia Chen, Ping Li, Shuhui Tang This work studied the doping of KSt in the PEDOT:PSS layer of devices ITO/K-PEDOT:PSS/perovskite/PCBM/BCP/Ag. The results showed that the doping of KSt improved the conductivity and charge transfer ability, thereby enhancing the PCE of inverted PSCs. 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 - Chem. Commun. latest articles - September 19, 2023 Category: Chemistry Authors: Ying Li Source Type: research
Thiophene-sulfur doping in nitrogen-rich porous carbon enabling high-ICE/rate anode materials for potassium-ion storage
J. Mater. Chem. A, 2023, Advance Article DOI: 10.1039/D3TA04468H, PaperChuang Qiu, Anuj Kumar, Daping Qiu, Mohammad Tabish, Jiapeng Zhang, Zhijie Jiang, Ang Li, Ghulam Yasin, Xiaohong Chen, Huaihe Song Sulfur doping in carbon materials is generally considered to enhance initial coulombic efficiency, potassium storage capacity and reaction kinetics. 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 - September 18, 2023 Category: Chemistry Authors: Chuang Qiu Source Type: research
A luminescent MOF-based nonenzymatic probe for colorimetric/photothermal/fluorescence triple-mode assay of uric acid in body fluids
Talanta. 2023 Sep 15;267:125201. doi: 10.1016/j.talanta.2023.125201. Online ahead of print.ABSTRACTMonitoring the levels of uric acid (UA) in body fluids is of great significance in the clinical diagnosis and therapy of related diseases. Herein, a novel nanocomposite R6G@Fe-MOF based nonenzymatic probe is presented to provide a ratiometric fluorescent, colorimetric, and photothermal triple read-out signal for the visual, sensitive, and convenient assay of UA. The framework structure of the in situ encapsulated R6G@Fe-MOF is found to decompose upon the addition of UA, resulting in the reduction of Fe3+ to Fe2+. This reducti...
Source: Talanta - September 18, 2023 Category: Chemistry Authors: Jianping Guan Meng Wang Yu Xiong Qi Liu Xiaoqing Chen Source Type: research
Ion-modulated interfacial fluorescence in droplet microfluidics using an ionophore-doped oil
Chem Commun (Camb). 2023 Sep 18. doi: 10.1039/d3cc02945j. Online ahead of print.ABSTRACTFluorescence at the oil-water interface is used for chemical sensing in droplet microfluidics. Potassium ions in aqueous droplets are extracted into oil segments doped with an ionophore, a cation exchanger, and a cationic dye to expel the dye. When a low concentration of dye with a balanced solubility is used, it actively accumulates at the thin interface between oil and water instead of getting dissolved in the aqueous phase. The interfacial fluorescence is monitored distinct from the fluorescence in the oil sensor and the aqueous samp...
Source: Chemical Communications - September 18, 2023 Category: Chemistry Authors: Renjie Wang Nasrin Ghanbari Ghalehjoughi Xuewei Wang Source Type: research
A luminescent MOF-based nonenzymatic probe for colorimetric/photothermal/fluorescence triple-mode assay of uric acid in body fluids
Talanta. 2023 Sep 15;267:125201. doi: 10.1016/j.talanta.2023.125201. Online ahead of print.ABSTRACTMonitoring the levels of uric acid (UA) in body fluids is of great significance in the clinical diagnosis and therapy of related diseases. Herein, a novel nanocomposite R6G@Fe-MOF based nonenzymatic probe is presented to provide a ratiometric fluorescent, colorimetric, and photothermal triple read-out signal for the visual, sensitive, and convenient assay of UA. The framework structure of the in situ encapsulated R6G@Fe-MOF is found to decompose upon the addition of UA, resulting in the reduction of Fe3+ to Fe2+. This reducti...
Source: Talanta - September 18, 2023 Category: Chemistry Authors: Jianping Guan Meng Wang Yu Xiong Qi Liu Xiaoqing Chen Source Type: research
Study on the Optical Properties and Electronic Structures for the Ba-doped KH2PO4 Crystals
CrystEngComm, 2023, Accepted Manuscript DOI: 10.1039/D3CE00730H, PaperHao Hu, Wei Hong, Tingyu Liu, Longfeng Zhao, Jiachen Zhu Potassium dihydrogen phosphate (KDP) is widely used in electro-optical switches and inverter crystals in Inertial confinement fusion (ICF). Ba substitute for K ( BaK )was found to be one of... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - CrystEngComm latest articles - September 14, 2023 Category: Chemistry Authors: Hao Hu Source Type: research
Boosting the "Solid-Liquid-Solid" Conversion Reaction via Bifunctional Carbonate-Based Electrolyte for Ultra-long-life Potassium-Sulfur Batteries
Angew Chem Int Ed Engl. 2023 Sep 14:e202307728. doi: 10.1002/anie.202307728. Online ahead of print.ABSTRACTPotassium-sulfur (K-S) batteries have attracted wide attention owing to their high theoretical energy density and low cost. However, the intractable shuttle effect of K polysulfides results in poor cyclability of K-S batteries, which severely limits their practical application. Herein, a bifunctional concentrated electrolyte (3 mol L-1 potassium bis(trifluoromethanesulfonyl)imide in ethylene carbonate (EC)) with high ionic conductivity and low viscosity is developed to regulate the dissolution behavior of polysulfides...
Source: Angewandte Chemie - September 14, 2023 Category: Chemistry Authors: Shufen Ye Nan Yao Xiang Chen Mingze Ma Lifeng Wang Zhihao Chen Yu Yao Qiang Zhang Yan Yu Source Type: research
Crystallization mechanism and defect passivation of Cu2ZnSn(S,Se)4 thin film solar cells via in situ potassium doping
J. Mater. Chem. A, 2023, Advance Article DOI: 10.1039/D3TA03421F, PaperLiangzheng Dong, Shengye Tao, Ming Zhao, Daming Zhuang, Yafei Wang, Hanpeng Wang, Mengyao Jia, Junsu Han, Hongwei Zhu Alkali metal doping has achieved prominent results in Cu2ZnSn(S,Se)4 (CZTSSe) thin film solar cells. In this paper,in situ K-doped CZTSSe thin film solar cells were prepared by magnetron sputtering with a K-containing CZTS target. 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 - September 12, 2023 Category: Chemistry Authors: Liangzheng Dong Source Type: research
Ion-modulated interfacial fluorescence in droplet microfluidics using an ionophore-doped oil
This article is licensed under aCreative Commons Attribution 3.0 Unported Licence.Renjie Wang, Nasrin Ghanbari Ghalehjoughi, Xuewei Wang Fluorescence at the oil-water interface is used for chemical sensing in droplet microfluidics. Potassium ions in aqueous droplets are extracted into oil segments doped with an ionophore, a cation exchanger,... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Chem. Commun. latest articles - September 11, 2023 Category: Chemistry Authors: Renjie Wang Source Type: research
