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首页> 外文期刊>ChemElectroChem >Influence of Anion Chaotropicity on the SO2 Oxidation Reaction: When Spectator Species Determine the Reaction Pathway
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Influence of Anion Chaotropicity on the SO2 Oxidation Reaction: When Spectator Species Determine the Reaction Pathway

机译:阴离子分子性对SO2氧化反应的影响:当观众物种确定反应途径时

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摘要

The electrochemical SO2 oxidation reaction (SO2OR) is a promising alternative to the O-2 evolution reaction for H-2 electrochemical generation. The SO2OR exhibits a low thermodynamic potential and small kinetic barrier, and Au has been observed to be a very active catalyst. For this material, nonlinear dynamic behavior is observed, which is related to the electrolyte chaotropicity at the solid-liquid interface. In this work, the influence of the chaotropicity was investigated by electrochemical and spectroelectrochemical techniques, and the main reasons for the dependence on the chaotropicity were investigated. The electrochemical response as a function of the chaotropicity was determined as a function of the mechanism observed, and the reaction pathway selection was related to the intermediate adsorption, which in turn was controlled by the interfacial water structure. The "neutral" chaotropicity was found to be the optimum condition for SO2OR.
机译:电化学SO2氧化反应(SO2OR)是对H-2电化学发电的O-2演化反应的有希望的替代品。 SO2OR表现出低热力学电位和小动力学屏障,并且已观察到Au是非常活性的催化剂。 对于这种材料,观察到非线性动力学行为,其与固体液体界面处的电解质分子性有关。 在这项工作中,通过电化学和光谱电化学技术研究了杂交性的影响,研究了对依赖性的依赖性的主要原因。 作为所观察机构的函数确定作为杂交功能的电化学响应,反应途径选择与中间吸附有关,其又通过界面水结构控制。 发现“中性”的分离性是SO2OR的最佳条件。

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