Cobalt single atom catalysts for the efficient electrosynthesis of hydrogen peroxide

doi:10.1039/d1qi00158b

	Cobalt single atom catalysts for the efficient electrosynthesis of hydrogen peroxide
	Xu, Hui 1,2; Zhang, Shengbo 1; Geng, Jing 1,2; Wang, Guozhong 1; Zhang, Haimin 1
刊名	INORGANIC CHEMISTRY FRONTIERS
	2021-04-01
ISSN号	2052-1553
DOI	10.1039/d1qi00158b
通讯作者	Zhang, Haimin(zhanghm@issp.ac.cn)
英文摘要	We report the synthesis of cobalt (Co) single atoms (SAs) anchored on N-doped graphitic carbon (Co-SAs/NC) by the pyrolysis of a mixture of cobalt chloride hexahydrate, ethylene diamine tetraacetic acid (EDTA) and polyvinylpyrrolidone (PVP). As an electrocatalyst, the Co-SAs/NC with a surface area of 165.6 m(2) g(-1) and a dominant mesoporous structure exhibited superior two-electron oxygen reduction reaction (2e(-) ORR) activity in 0.1 M KOH electrolyte, affording a very positive onset potential of 0.84 V (vs. RHE) and a H2O2 selectivity of similar to 76.0% at 0.5 V (vs. RHE). The long-term durability tests indicated that the Co-SAs/NC can generate 380.9 +/- 14.85 mu mol H2O2 stably after 10 h of reaction at 0.5 V (vs. RHE) in 0.1 M KOH, showing only similar to 10% decay of the current and the corresponding faradaic efficiency (FE) of similar to 72.1 +/- 4.2%. The superior 2e(-) ORR performance of Co-SAs/NC is ascribed to the synergetic effect of the Co-N-x active sites and nearby oxygen functional groups.
资助项目	Natural Science Foundation of China[51872292] ; China Postdoctoral Science Foundation[E04BFGCV] ; CASHIPS Director's Fund[YZJJ2021QN18]
WOS研究方向	Chemistry
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000641866300001
资助机构	Natural Science Foundation of China ; China Postdoctoral Science Foundation ; CASHIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/122014]
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Haimin
作者单位	1.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Anhui Key Lab Nanomat & Nanotechnol,Inst Solid St, Key Lab Mat Phys,CAS Ctr Excellence Nanosci,HFIPS, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Xu, Hui,Zhang, Shengbo,Geng, Jing,et al. Cobalt single atom catalysts for the efficient electrosynthesis of hydrogen peroxide[J]. INORGANIC CHEMISTRY FRONTIERS,2021.
APA	Xu, Hui,Zhang, Shengbo,Geng, Jing,Wang, Guozhong,&Zhang, Haimin.(2021).Cobalt single atom catalysts for the efficient electrosynthesis of hydrogen peroxide.INORGANIC CHEMISTRY FRONTIERS.
MLA	Xu, Hui,et al."Cobalt single atom catalysts for the efficient electrosynthesis of hydrogen peroxide".INORGANIC CHEMISTRY FRONTIERS (2021).