Bimetallic Iron-Cobalt Nanoparticles Coated with Amorphous Carbon for Oxygen Evolution

doi:10.1021/acsanm.1c03208

CIOMP OpenIR

	Bimetallic Iron-Cobalt Nanoparticles Coated with Amorphous Carbon for Oxygen Evolution
	X. Bai; Q. Wang and J. Q. Guan
	2021
发表期刊	Acs Applied Nano Materials
卷号	4 期号:11 页码:12663-12671
摘要	Because of the adjustable electronic structure of bimetallic alloys, they have received much attention in electrocatalytic reactions. However, to date, there is a lack of effective methods to synthesize bimetallic nanoalloys with controllable metal proportions in the active species of the catalysts prepared by a high-temperature annealing method, leading to inferior catalytic activity and difficulty in identifying the active sites. Here, we synthesize iron (Fe)-cobalt (Co)-based nanoparticles coated with a few layers of amorphous carbon shell (<1 nm) and with Co7Fe3 alloy as the core by facile pyrolysis of a bimetallic Fe-Co-based tartrate, which exhibits excellent oxygen evolution reaction (OER) activity with a low overpotential of 272 mV at a current density of 10 mA cm(-2) and good durability in alkaline media. Compared with single-metal Fe/Co tartrate-derived catalysts, a bimetallic Fe-Co tartrate-derived catalyst with Co7Fe3Ox active sites shows higher charge-transfer ability and a lower OER barrier (approximately 285 kJ mol(-)(1)). For the first time, this work demonstrates that Fe-Co-based tartrate complexes can be used as precursors to construct high-performance bimetallic Fe-Co-based nanocomposite catalysts with controllable active sites for electrocatalytic OER.
DOI	10.1021/acsanm.1c03208
URL	查看原文
收录类别	sci
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66437
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	X. Bai,Q. Wang and J. Q. Guan. Bimetallic Iron-Cobalt Nanoparticles Coated with Amorphous Carbon for Oxygen Evolution[J]. Acs Applied Nano Materials,2021,4(11):12663-12671.
APA	X. Bai,&Q. Wang and J. Q. Guan.(2021).Bimetallic Iron-Cobalt Nanoparticles Coated with Amorphous Carbon for Oxygen Evolution.Acs Applied Nano Materials,4(11),12663-12671.
MLA	X. Bai,et al."Bimetallic Iron-Cobalt Nanoparticles Coated with Amorphous Carbon for Oxygen Evolution".Acs Applied Nano Materials 4.11(2021):12663-12671.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Bimetallic Iron-Coba（10144KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载