Reducing defects in ruthenium oxide via crystal engineering towards a durable acid oxygen evolution reaction

Jiaheng Peng; Jie Su; Runhua Li; Zhen Fang; Qionghao Xiong; Chenhao Wu; Zhao Liu; Jiakang Tian; Wencong Zhang; Zhenpeng Yao; Jianbo Wu

doi:10.1039/D6CC01718E

Reducing defects in ruthenium oxide via crystal engineering towards a durable acid oxygen evolution reaction

Jiaheng Peng,^ab Jie Su,^ab Runhua Li,^ab Zhen Fang,^ab Qionghao Xiong,^ab Chenhao Wu,^ab Zhao Liu,^ab Jiakang Tian,^ab Wencong Zhang,^ab Zhenpeng Yao*^abc and Jianbo Wu

*^abc

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^a Shanghai Key Laboratory of Hydrogen Science & Center of Hydrogen Science and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
E-mail: z.yao@sjtu.edu.cn, jianbowu@sjtu.edu.cn

^b Future Material Innovation Center, Zhangjiang Institute for Advanced Study, Shanghai Jiao Tong University, Shanghai, China

^c Materials Genome Initiative Center, Shanghai Jiao Tong University, Shanghai, China

Abstract

The insufficient stability of RuO₂ for industrial proton exchange membrane water electrolysis (PEMWE) remains a major challenge. Here, we report a crystal engineering strategy to fabricate undoped RuO₂ with reduced defects, which delivers excellent activity (187.7 mV@10 mA cm⁻²), superior stability (250 h), and durable PEMWE performance (200 h@100 mA cm⁻²).

This article is part of the themed collection: ChemComm Nanocatalysis

Chemical Communications

Reducing defects in ruthenium oxide via crystal engineering towards a durable acid oxygen evolution reaction

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