CAS OpenIR
Manipulation of Mott-Schottky Ni/CeO2 Heterojunctions into N-Doped Carbon Nanofibers for High-Efficiency Electrochemical Water Splitting
Li, Tongfei1,2,3; Yin, Jingwen1; Sun, Dongmei1; Zhang, Mingyi4,5; Pang, Huan6; Xu, Lin1; Zhang, Yiwei2; Yang, Jun7,8; Tang, Yawen1; Xue, Junmin3
2022-02-05
Source PublicationSMALL
ISSN1613-6810
Pages10
AbstractDesigning affordable and efficient bifunctional electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) has remained a long-lasting target for the progressing hydrogen economy. Utilization of metal/semiconductor interface effect has been lately established as a viable implementation to realize the favorable electrocatalytic performance due to the built-in electric field. Herein, a typical Mott-Schottky electrocatalyst by immobilizing Ni/CeO2 hetero-nanoparticles onto N-doped carbon nanofibers (abbreviated as Ni/CeO2@N-CNFs hereafter) has been developed via a feasible electrospinning-carbonization tactic. Experimental findings and theoretic calculations substantiate that the elaborated constructed Ni/CeO2 heterojunction effectively triggers the self-driven charge transfer on heterointerfaces, leading to the promoted charge transfer rate, the optimized chemisorption energies for reaction intermediates and ultimately the expedited reaction kinetics. Therefore, the well-designed Ni/CeO2@N-CNFs deliver superior HER and OER catalytic activities with overpotentials of 100 and 230 mV at 10 mA cm(-2), respectively, in alkaline solution. Furthermore, the Ni/CeO2@N-CNFs-equipped electrolyzer also exhibits a low cell voltage of 1.56 V to attain 10 mA cm(-2) and impressive long-term durability over 55 h. The innovative manipulation of electronic modulation via Mott-Schottky establishment may inspire the future development of economical electrocatalysts for diverse sustainable energy systems.
Keywordelectrospinning heterostructures Mott-Schottky electrocatalysts Ni CeO (2) water electrolysis
DOI10.1002/smll.202106592
Language英语
WOS KeywordBIFUNCTIONAL ELECTROCATALYSTS ; NANOPARTICLES ; MODULATION ; HYDROXIDES ; PERFORMANCE ; OXIDATION ; CATALYST ; HYDROGEN ; SITES
Funding ProjectNational Natural Science Foundation of China[21972068] ; National Natural Science Foundation of China[21875112] ; National Natural Science Foundation of China[22072067] ; National Natural Science Foundation of China[21878047] ; Qinglan Project of Jiangsu Province of China[1107040167] ; China Scholarship Council (CSC)[202006090294] ; Fundamental Research Funds for the Central Universities[3207042101D] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)[1107047002]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China ; Qinglan Project of Jiangsu Province of China ; China Scholarship Council (CSC) ; Fundamental Research Funds for the Central Universities ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS IDWOS:000751398900001
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51872
Collection中国科学院过程工程研究所
Corresponding AuthorXue, Junmin
Affiliation1.Nanjing Normal Univ, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Jiangsu Key Lab New Power Batteries, Sch Chem & Mat Sci, Nanjing 210023, Peoples R China
2.Southeast Univ, Sch Chem & Chem Engn, Jiangsu Optoelect Funct Mat & Engn Lab, Nanjing 211189, Peoples R China
3.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore
4.Harbin Normal Univ, Sch Phys & Elect Engn, Minist Educ, Key Lab Photon & Elect Bandgap Mat, Harbin 150025, Peoples R China
5.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 45001, Peoples R China
6.Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225009, Jiangsu, Peoples R China
7.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
8.Chinese Acad Sci, Inst Proc Engn, Ctr Mesosci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Tongfei,Yin, Jingwen,Sun, Dongmei,et al. Manipulation of Mott-Schottky Ni/CeO2 Heterojunctions into N-Doped Carbon Nanofibers for High-Efficiency Electrochemical Water Splitting[J]. SMALL,2022:10.
APA Li, Tongfei.,Yin, Jingwen.,Sun, Dongmei.,Zhang, Mingyi.,Pang, Huan.,...&Xue, Junmin.(2022).Manipulation of Mott-Schottky Ni/CeO2 Heterojunctions into N-Doped Carbon Nanofibers for High-Efficiency Electrochemical Water Splitting.SMALL,10.
MLA Li, Tongfei,et al."Manipulation of Mott-Schottky Ni/CeO2 Heterojunctions into N-Doped Carbon Nanofibers for High-Efficiency Electrochemical Water Splitting".SMALL (2022):10.
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