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在BiVO中引入双向轴坐标₄ @金属酸核心外光电极用于高效的水氧化

Jin-Bo Pan^1,2, Bing-Hao Wang¹, Sheng Shen¹

¹College of Chemistry and Chemical Engineering, State Key Laboratory of Chemo/Biosensing and Chemometrics, Ministry of Education of Advanced Engineering Research Center for Catalysis, Hunan University, Changsha, 410082, P. R. China.

Angewandte Chemie (International ed. in English)

|July 25, 2023

概括

研究人员开发了一种新型的核心外光电极,使用了慕瓦纳酸盐 (BiVO4) 和铁 (ZnCoFe) 氨酸外. 皮拉зин协调增强了界面接触和催化活性,以实现高效的光电化学水氧化.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
催化剂是一种催化剂.

背景情况:

核心外光电解极对光电化学 (PEC) 水氧化具有前景.
挑战包括创建高质量的接口和催化表面.

研究的目的:

开发一种新的核心外光电极,用于增强PEC水氧化.
为了研究pyrazine作为协调剂在调节接口特性和催化活性中的作用.

主要方法:

计算指导用于设计光电极.
一个木瓦纳酸盐 (BiVO4) 核心被合金铁 (ZnCoFe) 聚甲氨酸覆盖.
皮拉被用作双向轴向协调剂.

主要成果:

皮拉协调促进了BiVO4和ZnCoFe聚甲氨酸之间的亲密界面接触.
皮拉调节了ZnCoFe酸中的金属位点的电子密度和自旋配置,促进了OHO脱.
由此产生的光电极在1.23V_RHE时达到5.7±0.1mA cm−2的光电密度.

结论:

引入了一种用于构建核心外光电极的新方法.
皮拉轴协调在增强金属酸外的催化活性方面发挥着至关重要的作用.
开发的光电极显示了有效的PEC氧化水的巨大潜力.

关键词:

轴心协调有关轴心协调在BiVO4中使用BiVO4.金属聚乙氨酸聚甲氨酸水的氧化方式氧化水

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