期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 43, 页码 29373-29382出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b06979
关键词
graphene oxide; ZIF-8; oxygen reduction reaction; N-doped carbon; porous carbon; alkaline fuel cell
资金
- Council of Scientific and Industrial Research (CSIR), Government of India [CLP 218739]
- Noritake Company, Ltd., Japan [CLP 218739]
- University Grant Commission (UGC), Government of India
Nitrogen containing mesoporous carbon obtained by the pyrolysis of graphene oxide (GO) wrapped ZIF-8 (Zeolitic Imidazolate Frameworks-8) micro crystals is demonstrated to be an efficient catalyst for the oxygen reduction reaction (ORR). ZIF-8 synthesis in the presence of GO sheets helped to realize layers of graphene oxide over ZIF-8 microcrystals and the sphere-like structures thus obtained, on heat treatment, transformed to highly porous carbon with a nitrogen content of about 6.12% and surface area of 502 m(2)/g. These catalysts with a typical micromeso porous architecture exhibited an onset potential of 0.88Vvs RHE in a four electron pathway and also demonstrated superior durability in alkaline medium compared to that of the commercial Pt/C catalyst. The N-doped porous carbon derived from GO sheathed ZIF-8 core shell structures could therefore be employed as an efficient electrocatalyst for fuel cell applications.
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