Ultrafine Defective RuO2 Electrocatayst Integrated on Carbon Cloth for Robust Water Oxidation in Acidic Media

被引：323

作者：

Ge, Ruixiang ^{[1
,2
]}

Li, Lei ^{[1
,3
]}

Su, Jianwei ^{[1
]}

Lin, Yichao ^{[1
]}

Tian, Ziqi ^{[1
]}

Chen, Liang ^{[1
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Univ Elect Sci & Technol China, Sch Mat & Energy, Chengdu 611731, Sichuan, Peoples R China

来源：

ADVANCED ENERGY MATERIALS | 2019年 / 9卷 / 35期

基金：

中国国家自然科学基金;

关键词：

acidic media; defect engineering; RuO2; self-supported material; water oxidation; OXYGEN EVOLUTION REACTION; TOTAL-ENERGY CALCULATIONS; EFFICIENT; HYDROGEN; OXIDE; NANOPARTICLES; ELECTROLYSIS; TRANSITION; CHALLENGES; NANOWIRES;

D O I：

10.1002/aenm.201901313

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Developing efficient and durable electrocatalysts for the oxygen evolution reaction (OER) in acidic media is attractive but still challenging. In this study, ultrafine defective RuO2 nanoparticles are successfully prepared on carbon cloth by means of dip-coating, annealing, and acid etching. As a self-supported electrocatalyst, it exhibits an ultralow overpotential of 179 mV in 0.5 M H2SO4. More importantly, the high activity can be well maintained for 20 h. The density functional calculations revealed that the defect can not only increase the number of active sites but also improve the intrinsic OER activity.

引用

页数：9

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