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Ruthenium-cobalt nanoalloys encapsulated in nitrogen-doped graphene as active electrocatalysts for producing hydrogen in alkaline media

文献类型：期刊论文

作者Su, Jianwei1,2; Yang, Yang1,2; Xia, Guoliang1,2; Chen, Jitang1,2; Jiang, Peng1,2; Chen, Qianwang1,2,3
刊名NATURE COMMUNICATIONS
出版日期2017-04-25
卷号8
DOI10.1038/ncomms14969
文献子类Article
英文摘要The scalable production of hydrogen could conveniently be realized by alkaline water electrolysis. Currently, the major challenge confronting hydrogen evolution reaction ( HER) is lacking inexpensive alternatives to platinum-based electrocatalysts. Here we report a high-efficient and stable electrocatalyst composed of ruthenium and cobalt bimetallic nanoalloy encapsulated in nitrogen-doped graphene layers. The catalysts display remarkable performance with low overpotentials of only 28 and 218mV at 10 and 100 mA cm(-2), respectively, and excellent stability of 10,000 cycles. Ruthenium is the cheapest platinum-group metal and its amount in the catalyst is only 3.58 wt.%, showing the catalyst high activity at a very competitive price. Density functional theory calculations reveal that the introduction of ruthenium atoms into cobalt core can improve the efficiency of electron transfer from alloy core to graphene shell, beneficial for enhancing carbon-hydrogen bond, thereby lowing Delta G(H star) of HER.
WOS关键词EVOLUTION REACTION CATALYST ; METAL-ORGANIC FRAMEWORK ; HIGHLY EFFICIENT ; BINDING-ENERGY ; BIFUNCTIONAL ELECTROCATALYST ; CARBON ; NANOPARTICLES ; PERFORMANCE ; CO ; SPECTROSCOPY
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000400066500001
资助机构National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; National Natural Science Foundation (NSFC)(21571168 ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; 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) ; 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CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS/SAFEA International Partnership Program for Creative Research Teams ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; CAS Hefei Science Center(2016HSC-IU011) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; Fundamental Research Funds for the Central Universities(WK2060140021) ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/33396]  
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, Hefei Natl Lab Phys Sci Microscale, Dept Mat Sci & Engn, 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		 Su, Jianwei,Yang, Yang,Xia, Guoliang,et al. Ruthenium-cobalt nanoalloys encapsulated in nitrogen-doped graphene as active electrocatalysts for producing hydrogen in alkaline media[J]. NATURE COMMUNICATIONS,2017,8.
APA Su, Jianwei,Yang, Yang,Xia, Guoliang,Chen, Jitang,Jiang, Peng,&Chen, Qianwang.(2017).Ruthenium-cobalt nanoalloys encapsulated in nitrogen-doped graphene as active electrocatalysts for producing hydrogen in alkaline media.NATURE COMMUNICATIONS,8.
MLA Su, Jianwei,et al."Ruthenium-cobalt nanoalloys encapsulated in nitrogen-doped graphene as active electrocatalysts for producing hydrogen in alkaline media".NATURE COMMUNICATIONS 8(2017).

入库方式： OAI收割

来源：合肥物质科学研究院

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