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在Ru_0.4Sn_0.3电极中通过轨道杂交效应增强Ru-Cl相互作用,以实现高效的演变

Dianzhi Zhang¹, Fei Xie¹, Haiming Gong¹

¹Laboratory of Solar Fuel, Faculty of Materials Science and Chemistry, China University of Geosciences, 68 Jincheng Street, Wuhan 430078, China.

Journal of colloid and interface science

|December 15, 2023

概括

一个新的三元金属氧化物电极 (Ru$_{0.4}$Sn$_{0.3}$Ti$_{0.3}$) 显著提高了进化反应 (CER) 选择性,而不是氧进化反应 (OER). 这种强大的电极为工业应用提供了高效率和耐用性.

科学领域:

电化学电化学电化学
材料科学材料科学材料科学

背景情况:

演化反应 (CER) 对工业至关重要,但由于与氧演化反应 (OER) 竞争,效率下降.
通过抑制OER来提高CER选择性对于高效的工业流程至关重要.

研究的目的:

开发和评估一种新的三元金属氧化物电极,以提高CER选择性.
为了研究CER的Ru$_{0.4}$Sn$_{0.3}$Ti$_{0.3}$电极的电催化性能和耐用性.

主要方法:

一个三元金属氧化物 (Ru$_{0.4}$Sn$_{0.3}$Ti$_{0.3}$) 电极的制造.
在6.0M NaCl溶液中进行电化学测试,以评估CER性能,选择性和耐用性.
理论研究 (DFT) 了解电子结构和催化机制.

主要成果:

Ru$_{0.4}$Sn$_{0.3}$Ti$_{0.3}$电极表现出极好的CER性能,具有低电位 (1.17V在200 mA cm$^{-2}$) 和高Cl$_{2}$选择性 (>90%).
电极表现出强大的耐用性,在100mA cm$^{-2}$下连续运行160小时.
理论分析显示,Ru-Ti轨道杂交增强了Cl吸附,从而增加了CER活动.

结论:

Ru$_{0.4}$Sn$_{0.3}$Ti$_{0.3}$电极是工业CER的高度选择性和耐用的阳极.
了解电子结构为设计CER的先进电催化剂提供了洞察力.

关键词:

的演化反应反应.轨道杂交效应的轨道杂交效应电极是Ru{0.4}Sn{0.3}Ti{0.3} 的电极.选择性的选择性在d频段中部,d频段中心.

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