期刊
ACS APPLIED MATERIALS & INTERFACES
卷 8, 期 51, 页码 35264-35269出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b11870
关键词
nitrogen-doped graphene; oxygen reduction reaction; synergistic effect; Zn-air battery
资金
- Science and Technology Planning Project of Fujian Province [2014H2008]
- strategic Priority Research Program of the Chinese Academy of Sciences [XDA09010402]
- National Natural Science Foundation of China [21501174]
Platinum is commonly chosen as an electrocatalyst used for oxygen reduction reaction (ORR). In this study, we report an active catalyst composed of MnO, nanofiLms grown directly on nitrogen-doped hollow graphene spheres, which exhibits high activity toward ORR with positive onset potential (0.94 V vs RHE), large current density (5.2 mA cm(-2)), and perfect stability. Significantly, when it was used as catalyst for air electrode, a zinc air battery exhibited a high power density (82 mW cm(-2)) and specific capacities (744 mA h g(-1)) comparable to that with Pt/C (20 wt %) as air cathode. The enhanced activity is ascribed to the synergistic interaction between MnO2 and the doped hollow carbon nanomaterials. This easy and cheap method paves a way of synthesizing high-performance electrocatalysts for ORR.
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