期刊
ACS APPLIED MATERIALS & INTERFACES
卷 12, 期 10, 页码 11693-11701出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b22476
关键词
2-aminobenzimidazole; ZIF precursor; Co@N-doped carbon; oxygen reduction reaction (ORR ); Zn-air battery
资金
- National Natural Science Foundation of China [51673117, 21805193, 51574166, 51602199, 51631001]
- Science and Technology Innovation Commission of Shenzhen [JCYJ20180305125319991, JCYJ20170818093832350, JCYJ20170818112409808, JSGG20170824112840518, JCYJ20180507184711069, JCYJ20170818100112531, JCYJ20170818101016362, JCYJ20170817094628397]
- Key R&D Program of Guangdong Province [2019B010929002, 2019B010941001]
The Co/N-doped carbon material, as an important electrocatalytic material, has been attracted intense interest in ORR and Zn-air battery. Here, we report an efficient Co@N-doped carbon catalyst (Co@N-C-1) obtained by pyrolysis of ZIF precursor with 2-aminobenzimidazole. The introduction of 2-aminobenzimidazole results in the formation of hierarchical meso/microporous structure of the as-prepared Co@N-C-1, effectively avoiding the aggregation of Co nanoparticles during pyrolysis and the higher N content, which contributes to enhance the ORR electrocatalytic activities. The obtained Co@N-C-1 exhibits remarkable ORR performance with a half-wave potential of 0.938 V vs RHE in alkaline media. As the air catalyst of zinc-air batteries, Co@N-C-1 displays 1.439 V of open-circuit voltage and 1413.3 Wh.kg(-1) of energy density.
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