Charge-Transfer-Promoted High Oxygen Evolution Activity of Co@Co9S8 Core-Shell Nanochains

doi:10.1021/acsami.7b15890

	Charge-Transfer-Promoted High Oxygen Evolution Activity of Co@Co9S8 Core-Shell Nanochains
	Yuan, Xiaotao 1; Yin, Junwen ; Liu, Zichao 1; Wang, Xin 1; Dong, Chenlong 1; Dong, Wujie 1; Riaz, Muhammad Sohail 1; Zhang, Zhe 1; Chen, Ming-Yang ; Huang, Fuqiang 1,2
刊名	ACS APPLIED MATERIALS & INTERFACES
	2018
卷号	10 期号:14 页码:11565
关键词	Co@Co9S8 core-shell structure nanochains oxygen evolution reaction charge transfer
ISSN号	1944-8244
DOI	10.1021/acsami.7b15890
英文摘要	Co@Co9S8 nanochains with core shell structures are prepared by a direct-current arc-discharge technique and followed sulfurization at 200 degrees C. The nanochains, which consist of uniform nanospheres connecting each other, can range up to several micrometers. The thickness of Co9S8 shell can be changed by regulating the sulfurization time. In this heterostructure of Co@Co9S8, Co nanochains function as a conductive network and can inject electrons into Co9S8, which manipulates the work function of Co9S8 and makes it more apposite for catalysis. The density functional theory calculation also reveals that coupling with Co can significantly reduce the overpotential needed to drive the oxygen evolution process. On the basis of the exclusive structure, Co@Co9S8 nanochains have shown high catalytic activity in the oxygen evolution reaction. Co@Co9S8 reaches an overpotential of 285 my at 10 mA cm(-2), which is much lower than that of Co nanochains (408 mV) and Co9S8 (418 mV). Co@Co9S8 also shows higher catalytic activity and robustness compared to state-of-the-art noble-metal catalyst RuO2.
学科主题	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000430156000020
资助机构	This work was financially supported from the National Key Research and Development Program (grant no. 2016YFB0901600), the National Natural Science Foundation of China (grants 61376056, 51672301, 51672295, 51572016, and U1530401), Science and Technology Commission of Shanghai (grants 14520722000, 16ZR1440500, and 16JC1401700), Shanghai Science and Technology Development Funds (grant 16QA1404200), Key Research Program of Chinese Academy of Sciences (grant KGZD-EW-T06), and Youth Innovation Promotion Association of Chinese Academy of Sciences. We acknowledge the computational support from the Beijing Computational Science Research Center (CSRC) and Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund under grant no. U1501501. ; This work was financially supported from the National Key Research and Development Program (grant no. 2016YFB0901600), the National Natural Science Foundation of China (grants 61376056, 51672301, 51672295, 51572016, and U1530401), Science and Technology Commission of Shanghai (grants 14520722000, 16ZR1440500, and 16JC1401700), Shanghai Science and Technology Development Funds (grant 16QA1404200), Key Research Program of Chinese Academy of Sciences (grant KGZD-EW-T06), and Youth Innovation Promotion Association of Chinese Academy of Sciences. We acknowledge the computational support from the Beijing Computational Science Research Center (CSRC) and Special Program for Applied Research on Super Computation of the NSFC-Guangdong Joint Fund under grant no. U1501501.
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/25005]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 2.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 4.Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Xiaotao,Yin, Junwen,Liu, Zichao,et al. Charge-Transfer-Promoted High Oxygen Evolution Activity of Co@Co9S8 Core-Shell Nanochains[J]. ACS APPLIED MATERIALS & INTERFACES,2018,10(14):11565, 11571.
APA	Yuan, Xiaotao.,Yin, Junwen.,Liu, Zichao.,Wang, Xin.,Dong, Chenlong.,...&Huang, Fuqiang.(2018).Charge-Transfer-Promoted High Oxygen Evolution Activity of Co@Co9S8 Core-Shell Nanochains.ACS APPLIED MATERIALS & INTERFACES,10(14),11565.
MLA	Yuan, Xiaotao,et al."Charge-Transfer-Promoted High Oxygen Evolution Activity of Co@Co9S8 Core-Shell Nanochains".ACS APPLIED MATERIALS & INTERFACES 10.14(2018):11565.