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MOF-derived PdNiCo alloys encapsulated in nitrogen-doped graphene for robust hydrogen evolution reactions

文献类型：期刊论文

作者Xu, Shihao2,3; Yang, Fan2,3; Han, Shuai2,3; Zhang, Shudong2,4; Wang, Qiang1,5; Jiang, Changlong2,4
刊名CRYSTENGCOMM
出版日期2020-09-28
卷号22
ISSN号1466-8033
DOI10.1039/d0ce01030h
通讯作者Zhang, Shudong() ; Wang, Qiang() ; Jiang, Changlong(cljiang@iim.ac.cn)
英文摘要The hydrogen evolution reaction (HER) is an important step for electrochemical water splitting to produce hydrogen. Functional materials with low cost and robust performance might meet the urgent need for replacement of Pt-based electrocatalysts for the HER. Herein, a simple one-pot method is designed to prepare metal-organic framework (MOF)-derived PdNiCo alloys encapsulated in a nitrogen-doped graphene shell for efficient hydrogen evolution reactions. The electrocatalyst demonstrated an outstanding performance with only 42 mV overpotential to achieve 10 mA cm(-2) current density, quite close to that of the commercial 20% Pt/C catalyst. Moreover, the underlying reason for the outstanding performance is that introduction of trace palladium atoms into the core can improve the efficiency of electron transfer from the alloy core to the graphene shell, and the PdNiCo alloy/nitrogen-doped carbon interfaces weaken the hydrogen adsorption energy on the catalyst and thus optimize the Gibbs free energy of the intermediate state (Delta G(H*)), leading to a remarkable electrocatalytic activity. These results indicate that robust and super stable alloys encapsulated in nitrogen-doped graphene containing a very small amount of noble metal could effectively improve the electrocatalytic performance. This work gives new insights into the investigation of efficient and practical multilayer core-shell structured HER catalysts.
WOS关键词EFFICIENT ; ELECTROCATALYSTS ; NANOPARTICLES ; SITES
资助项目National Natural Science Foundation of China[21876175] ; National Natural Science Foundation of China[21671052] ; National Natural Science Foundation of China[21605144] ; National Natural Science Foundation of China[21806168] ; Key Research and Development Program of Anhui Province[1804a07020103] ; Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS研究方向Chemistry ; Crystallography
语种英语
WOS记录号WOS:000571346300015
出版者ROYAL SOC CHEMISTRY
资助机构National Natural Science Foundation of China ; Key Research and Development Program of Anhui Province ; Top-notch Academic Programs Project of Jiangsu Higher Education Institutions (TAPP) ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/104202]  
专题中国科学院合肥物质科学研究院
通讯作者Zhang, Shudong; Wang, Qiang; Jiang, Changlong
作者单位1.Changzhou Univ, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Changzhou 213164, Jiangsu, Peoples R China
2.Chinese Acad Sci, Inst Solid State Phys, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China
3.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
4.Chinese Acad Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China
5.Changzhou Univ, Sch Mat Sci & Engn, Changzhou 213164, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Shihao,Yang, Fan,Han, Shuai,et al. MOF-derived PdNiCo alloys encapsulated in nitrogen-doped graphene for robust hydrogen evolution reactions[J]. CRYSTENGCOMM,2020,22.
APA Xu, Shihao,Yang, Fan,Han, Shuai,Zhang, Shudong,Wang, Qiang,&Jiang, Changlong.(2020).MOF-derived PdNiCo alloys encapsulated in nitrogen-doped graphene for robust hydrogen evolution reactions.CRYSTENGCOMM,22.
MLA Xu, Shihao,et al."MOF-derived PdNiCo alloys encapsulated in nitrogen-doped graphene for robust hydrogen evolution reactions".CRYSTENGCOMM 22(2020).

入库方式： OAI收割

来源：合肥物质科学研究院

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