Topic
Polyoxometalate
About: Polyoxometalate is a research topic. Over the lifetime, 3493 publications have been published within this topic receiving 94123 citations. The topic is also known as: POM.
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TL;DR: In this article, a polyoxometalate-based complex was synthesized using a hydrothermal method; it exhibits a two-dimensional network structure and the concomitant existence of spin canting and metamagnetic properties.
Abstract: A novel polyoxometalate-based complex [Cu2(ptz)(H2O)(μ2-O)(Mo4O13)]·H2O (ptz= 5-(2-pyridyl)tetrazole) was synthesized using a hydrothermal method; it exhibits a two-dimensional network structure and the concomitant existence of spin canting and metamagnetism.
32 citations
TL;DR: In this article, the periodic mesoporous composite catalysts, with TBA-1* loadings of 4.3-14.8% were prepared by simultaneous hydrolysis and co-condensation of the tetraethoxysilane (TEOS) in the presence of divacant Keggin-type polyoxometalate and triblock copolymer surfactant (P123) followed by hydrothermal treatment process.
32 citations
TL;DR: In this paper, a multimetal-based carbon nanotube hybrid (CoFeNiMo@NCNT) was proposed as an efficient bifunctional catalysts for both triiodide reduction and hydrogen evolution reaction.
Abstract: Over the years, transition metal-based hybrids have been advocated as one of the most promising classes of non-noble catalysts and investigated exclusively for the electrocatalytic triiodide reduction reaction (IRR) or hydrogen evolution reaction (HER). However, there is lack of effective strategy to address their site accessibility, intrinsic activity and structural stability issues, and their successful utilization as bifunctional catalysts of IRR and HER is rarely explored. Herein, presented is a multimetal-based carbon nanotube hybrid (CoFeNiMo@NCNT), synthesized from a novel polyoxometalate (POM)-intercalated layered double hydroxide (LDH) pyrolysis strategy, as an efficient catalyst for IRR and HER. During both electrochemical IRR and HER, the regulated NCNT provides a highway for electron migration and acts as a network for I3−/H+ adsorption. Benefitting from the features of porous structure, multimetal component and fast electron transfer, the CoFeNiMo@NCNT catalyst delivers a high power conversion efficiency of 6.46 % when assembled as counter electrode in dye-sensitized solar cell, superior to Pt benchmark. Furthermore, it mediates efficient HER with a relatively small overpotential of 209.9 mV at 10 mA cm-2. The strategy to achieve tunable catalytic properties via in situ pyrolysis well-defined inorganic materials paves a new way to design cost-effective and efficient bifunctional catalysts.
32 citations
Patent•
04 Feb 1987TL;DR: In this article, a transition metal-substituted polyoxometalate catalyst is used to catalyze the carbon-hydrogen bond (e.g., alkane) hydroxylation reaction and/or epoxidation reaction of organic substrate.
Abstract: A novel process for the homogenous oxidation of organic substrates is disclosed. This process uses a transition metal-substituted polyoxometalate catalyst, which in the presence of an oxygen donor, catalyses the carbon-hydrogen bond (e.g., alkane) hydroxylation reaction and/or epoxidation reaction of the organic substrate.
32 citations
TL;DR: The hydrolysis of estertin into a carboxyethyltin group and the assembly of a new tetra(organotin)-decorated boat-like polyoxometalate are hydrolyzed.
Abstract: The reaction of Cl3Sn(CH2)2COOCH3, [H2P2W12O48]12− and WO42− in acetate buffer solution led to the hydrolysis of estertin into a carboxyethyltin group and the assembly of a new tetra(organotin)-decorated boat-like polyoxometalate.
32 citations