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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Tuning the electrocatalytic hydrogen evolution reaction promoted by [Mo_2O_2S_2]-based molybdenum cycles in aqueous medium
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Tuning the electrocatalytic hydrogen evolution reaction promoted by [Mo_2O_2S_2]-based molybdenum cycles in aqueous medium

机译:调节[Mo_2O_2S_2]基钼循环在水介质中促进的电催化析氢反应

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摘要

We report the syntheses and characterizations, in the solid state and in solution, of three new cyclic polyoxothiomolybdates self-assembled around 2,5-dimethylterephthalate (DMT) and 2,5-bis(trifluoromethyl)terephthalate (DFMT) ligands, namely [Mo_(12)DMT]~(2-), [Mo_(12)DFMT] ~(2-) and [Mo_(16)DFMT]~(2-). A series of these two Mo_(12)-compounds completed by the two Mo(12)-compounds obtained with 2,3,5,6-tetramethylterephthalate and trimesate ligands offer the opportunity to compare their electro-catalytic properties for reduction of protons into hydrogen. The ability of these compounds to promote the reduction of protons into hydrogen in aqueous medium is evidenced and the influence of the embedded ligand is highlighted, thus allowing proposal of a mechanism for the hydrogen evolution reaction catalyzed by these clusters.
机译:我们报告了固态和在溶液中的三个新的环状聚氧代硫代钼酸酯在2,5-二甲基对苯二甲酸酯(DMT)和2,5-双(三氟甲基)对苯二甲酸酯(DFMT)配体周围自组装的合成和表征,即[Mo_ (12)DMT]〜(2-),[Mo_(12)DFMT]〜(2-)和[Mo_(16)DFMT]〜(2-)。由通过与2,3,5,6-四甲基对苯二甲酸酯和均苯三酸酯配体获得的两个Mo(12)化合物完成的一系列这两个Mo_(12)化合物提供了比较它们将质子还原为氢。这些化合物促进了质子在水性介质中还原为氢的能力,并突出了嵌入的配体的影响,因此提出了由这些簇催化的氢释放反应机理的建议。

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