期刊
NANOMATERIALS
卷 12, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/nano12091593
关键词
oxygen reduction reaction; electrocatalyst; single atom catalysts; carbon nanotubes
类别
资金
- National Key Research and Development Program of China [2017YFA0303403]
- Shanghai Science and Technology Innovation Action Plan [19JC1416700]
- National Natural Science Foundation of China [61974042, 11774092]
In this study, a catalyst of iron single atoms anchored on nitrogen-doped carbon matrix/ carbon nanotube hybrid supports was successfully prepared. It exhibits low cost, high selectivity, and high activity in the oxygen reduction reaction. The catalyst showed excellent activity and stability, making it a potential replacement for the latest commercial Pt/C catalyst.
Single-atom non-precious metal oxygen reduction reaction (ORR) catalysts have attracted much attention due to their low cost, high selectivity, and high activity. Herein, we successfully prepared iron single atoms anchored on nitrogen-doped carbon matrix/nanotube hybrid supports (FeSA-NC/CNTs) by the pyrolysis of Fe-doped zeolitic imidazolate frameworks. The nitrogen-doped carbon matrix/carbon nanotube hybrid supports exhibit a specific surface area of 1626.814 m(2) g(-1), which may facilitate electron transfer and oxygen mass transport within the catalyst and be beneficial to ORR performance. Further electrochemical results revealed that our FeSA-NC/CNTs catalyst exhibited excellent ORR activity (half-wave potential: 0.86 V; kinetic current density: 39.3 mA cm(-2) at 0.8 V), superior to that of commercial Pt/C catalyst (half-wave potential: 0.846 V; kinetic current density: 14.4 mA cm(-2) at 0.8 V). It also has a great stability, which makes it possible to be a valuable non-noble metal electrode material that may replace the latest commercial Pt/C catalyst in the future.
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