期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 58, 期 52, 页码 18883-18887出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201911441
关键词
metal-air batteries; molecular electrocatalysis; oxygen evolution; oxygen reduction; self-supported electrode
资金
- Thousand Talents Program of China
- National Natural Science Foundation of China [21101170, 21573139, 21773146, 21902099]
- Shaanxi Normal University [2019CBLZ002]
- Fok Ying-Tong Education Foundation for Outstanding Young Teachers in University
- Fundamental Research Funds for the Central Universities
Electrodes for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are required in energy conversion and storage technologies. An assembly strategy involves covalently grafting Co corrole 1 onto Fe3O4 nanoarrays grown on Ti mesh. The resulted electrode shows significantly improved activity and durability for OER and ORR in neutral media as compared to Fe3O4 alone and with directly adsorbed 1. It also displays higher atom efficiency (at least two magnitudes larger turnover frequency) than reported electrodes. Using this electrode in a neutral Zn-air battery, a small charge-discharge voltage gap of 1.19 V, large peak power density of 90.4 mW cm(-2), and high rechargeable stability for >100 h are achieved, opening a promising avenue of molecular electrocatalysis in a metal-air battery. This work shows a molecule-engineered electrode for electrocatalysis and demonstrates their potential applications in energy conversion and storage.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据