Tuning Electronic Structures of Nonprecious Ternary Alloys Encapsulated in Graphene Layers for Optimizing Overall Water Splitting Activity

doi:10.1021/acscatal.6b02573

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院强磁场科学中心

	Tuning Electronic Structures of Nonprecious Ternary Alloys Encapsulated in Graphene Layers for Optimizing Overall Water Splitting Activity
	Yang, Yang 1,2; Lin, Zhiyu 1,2; Gao, Shiqi 1,2; Su, Jianwei 1,2; Lun, Zhengyan 1,2; Xia, Guoliang 1,2; Chen, Jitang 1,2; Zhang, Ruirui 1,2; Chen, Qianwang 1,2,3
刊名	ACS CATALYSIS
	2017
卷号	7 期号:1 页码:469-479
关键词	Water Splitting Ternary Alloy Graphene Tuning Electronic Structure
DOI	10.1021/acscatal.6b02573
文献子类	Article
英文摘要	Electrochemical water splitting is considered as the most promising technology for hydrogen production. Considering overall water splitting for practical applications, catalysis of the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) should be performed in the same electrolyte, especially in alkaline solutions. However, designing and searching for highly active and inexpensive electrocatalysts for both OER and HER in basic media remain significant challenges. Herein, we report a facile and universal strategy for synthesizing nonprecious transition metals, binary alloys, and ternary alloys encapsulated in graphene layers by direct annealing of metal-organic frameworks. Density functional theory calculations prove that with an increase in the degree of freedom of alloys or a change in the metal proportions in FeCoNi ternary alloys, the electronic structures of materials can also be tuned intentionally by changing the number of transferred electrons between alloys and graphene. The optimal material alloys FeCo and FeCoNi exhibited remarkable catalytic performance for HER and OER in 1.0 M KOH, reaching a current density of 10 mA cm(-2) at low overpotentials of 149 mV for HER and 288 mV for OER. In addition, as an overall alkaline water electrolysis, they were comparable to that of the Pt/RuO2 couple, along with long cycling stability.
WOS关键词	HYDROGEN-EVOLUTION REACTION ; METAL-ORGANIC FRAMEWORK ; NITROGEN-DOPED CARBON ; OXYGEN EVOLUTION ; HIGHLY EFFICIENT ; BIFUNCTIONAL ELECTROCATALYSTS ; HIGH-PERFORMANCE ; BINDING-ENERGY ; FIBER PAPER ; COBALT
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000391783200056
资助机构	National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; National Natural Science Foundation (NSFC)(21271163 ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; CAS/SAFEA International Partnership Program for Creative Research Teams and the Hefei Science Center CAS(2016HSC-IU011) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211) ; U1232211)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/32792]
专题	合肥物质科学研究院_中科院强磁场科学中心
作者单位	1.Univ Sci & Technol China, Dept Mat Sci & Engn, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China 2.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Hefei Inst Phys Sci, High Field Magnet Lab, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Yang, Yang,Lin, Zhiyu,Gao, Shiqi,et al. Tuning Electronic Structures of Nonprecious Ternary Alloys Encapsulated in Graphene Layers for Optimizing Overall Water Splitting Activity[J]. ACS CATALYSIS,2017,7(1):469-479.
APA	Yang, Yang.,Lin, Zhiyu.,Gao, Shiqi.,Su, Jianwei.,Lun, Zhengyan.,...&Chen, Qianwang.(2017).Tuning Electronic Structures of Nonprecious Ternary Alloys Encapsulated in Graphene Layers for Optimizing Overall Water Splitting Activity.ACS CATALYSIS,7(1),469-479.
MLA	Yang, Yang,et al."Tuning Electronic Structures of Nonprecious Ternary Alloys Encapsulated in Graphene Layers for Optimizing Overall Water Splitting Activity".ACS CATALYSIS 7.1(2017):469-479.