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Chemisorbed Oxygen-Species-Mediated Electrocatalytic Oxidation of Thiourea and Thiosulfate
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2018-10-16 , DOI: 10.1021/acs.jpcc.8b07540 Wei Zhang 1, 2 , Changwei Pan 1 , Qingyu Gao 1
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2018-10-16 , DOI: 10.1021/acs.jpcc.8b07540 Wei Zhang 1, 2 , Changwei Pan 1 , Qingyu Gao 1
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The electrocatalytic oxidation of two sulfur(-II) species (thiourea and thiosulfate) on a polycrystalline platinum electrode was studied by combining cyclic voltammetry (CV) with high-performance liquid chromatography and capillary electrophoresis. The surface sulfur species distribution and the charge transfer peaks of the CV curves depend on the formation of chemisorbed oxygen (such as OHads and Oads), indicating that these electrocatalytic reactions are mediated via the chemisorbed oxygen species. The formation of chemisorbed oxygen species plays a dual role during the electrode processes as the poison for metal degradation and the bridge for the electrocatalytic reaction.
中文翻译：
化学吸附的氧物种介导的硫脲和硫代硫酸盐的电催化氧化
将循环伏安法（CV）与高效液相色谱和毛细管电泳相结合，研究了多晶铂电极上两种硫（-II）物质（硫脲和硫代硫酸盐）的电催化氧化。CV曲线的表面硫物种分布和电荷转移峰取决于化学吸附的氧（例如OH ads和O ads）的形成，表明这些电催化反应是通过化学吸附的氧而介导的。化学吸附的氧物质的形成在电极过程中起着双重作用，既是金属降解的毒物，又是电催化反应的桥梁。
更新日期：2018-10-17
中文翻译：
化学吸附的氧物种介导的硫脲和硫代硫酸盐的电催化氧化
将循环伏安法（CV）与高效液相色谱和毛细管电泳相结合，研究了多晶铂电极上两种硫（-II）物质（硫脲和硫代硫酸盐）的电催化氧化。CV曲线的表面硫物种分布和电荷转移峰取决于化学吸附的氧（例如OH ads和O ads）的形成，表明这些电催化反应是通过化学吸附的氧而介导的。化学吸附的氧物质的形成在电极过程中起着双重作用，既是金属降解的毒物，又是电催化反应的桥梁。
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