过电位
钌
氧化钌
氧化物
材料科学
无机化学
钛
氧化钛
选择性
覆盖层
基质(水族馆)
结晶度
催化作用
贵金属
金属
化学工程
电化学
化学
电极
物理化学
冶金
有机化学
海洋学
复合材料
工程类
地质学
作者
Jiapeng Ji,Junxian Liu,Lei Shi,Siqi Guo,Ningyan Cheng,Porun Liu,Yuantong Gu,Huajie Yin,Haimin Zhang,Huijun Zhao
标识
DOI:10.1002/sstr.202300240
摘要
The development of dimensionally stable anodes (DSAs) has made the chlorine evolution reaction (CER) the most important industrial anode reaction since the 1960s. However, the preparation of DSA depends on the extensive use of precious metals, Ru and Ir, which are expensive and scarce. Herein, a cationic defect adsorption–oxidation anchoring strategy to immobilize oxidized sub‐nano ruthenium clusters on 2D low‐crystallinity titanium oxide (2D TiO x ) substrate is reported. Through the metal oxide−support interaction, the 2D TiO x alters the electronic structure of ruthenium oxide (RuO x ), improving its activity, selectivity, and stability for CER. Specifically, the mass activity of the RuO x /2D TiO x electrode is 26.5 and 143.5 times higher than that of the state‐of‐the‐art commercial RuO 2 and DSA, respectively, at an overpotential of 100 mV. Moreover, the selectivity of the RuO x /2D TiO x electrode to CER is approximately 96.5%, and it exhibits remarkable durability lasting for over 210 h. Therefore, the 2D TiO x substrate holds significant potential for improving the dispersion, active site density, and atomic utilization of oxidized sub‐nano noble metal clusters.
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