CAS OpenIR
Atomically Dispersed Mo Sites Anchored on Multichannel Carbon Nanofibers toward Superior Electrocatalytic Hydrogen Evolution
Li, Tongfei1,2,3; Lu, Tingyu1; Li, Xin1; Xu, Lin1; Zhang, Yiwei2; Tian, Ziqi7; Yang, Jun4,5; Pang, Huan6; Tang, Yawen1; Xue, Junmin3
2021-12-28
Source PublicationACS NANO
ISSN1936-0851
Volume15Issue:12Pages:20032-20041
AbstractDeveloping affordable and efficient electrocatalysts as precious metal alternatives toward the hydrogen evolution reaction (HER) is crucially essential for the substantial progress of sustainable H-2 energy-related technologies. The dual manipulation of coordination chemistry and geometric configuration for single-atom catalysts (SACs) has emerged as a powerful strategy to surmount the thermodynamic and kinetic dilemmas for high-efficiency electrocatalysis. We herein rationally designed N-doped multichannel carbon nanofibers supporting atomically dispersed Mo sites coordinated with C, N, and O triple components (labeled as Mo@NMCNFs hereafter) as a superior HER electrocatalyst. Systematic characterizations revealed that the local coordination microenvironment of Mo is determined to be a Mo-O1N1C2 moiety, which was theoretically probed to be the energetically favorable configuration for H intermediate adsorption by density functional theory calculations. Structurally, the multichannel porous carbon nanofibers with open ends could effectively enlarge the exposure of active sites, facilitate mass diffusion/charge transfer, and accelerate H-2 release, leading to promoted reaction kinetics. Consequently, the optimized Mo@NMCNFs exhibited superior Pt-like HER performance in 0.5 M H2SO4 electrolyte with an overpotential of 66 mV at 10 mA cm(-2), a Tafel slope of 48.9 mV dec(-1), and excellent stability, outperforming a vast majority of the previously reported nonprecious HER electrocatalysts. The concept of both geometric and electronic engineering of SACs in this work may provide guidance for the design of high-efficiency molecule-like heterogeneous catalysts for a myriad of energy technologies.
Keywordsingle-atom catalysis electrospinning coordination chemistry engineering hydrogen evolution reaction carbon nanofibers
DOI10.1021/acsnano.1c07694
Language英语
WOS KeywordN-DOPED CARBON ; COORDINATION ENVIRONMENT ; EFFICIENT ; NANOSHEETS ; ATOMS ; NANOPARTICLES ; CONFINEMENT ; GRAPHENE ; CATALYST
Funding ProjectNational Natural Science Foundation of China[21972068] ; National Natural Science Foundation of China[21875112] ; National Natural Science Foundation of China[21878047] ; Qing Lan Project of Jiangsu Province[1107040167] ; Postgraduate Research & Practice Innovation Program of Jiangsu Province[KYCX20_0121] ; China Scholarship Council (CSC)[202006090294] ; Fundamental Rese arch Funds for the Central Universities[2242020k1G001] ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)[1107047002]
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS SubjectChemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China ; Qing Lan Project of Jiangsu Province ; Postgraduate Research & Practice Innovation Program of Jiangsu Province ; China Scholarship Council (CSC) ; Fundamental Rese arch Funds for the Central Universities ; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
WOS IDWOS:000751890100115
PublisherAMER CHEMICAL SOC
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/51958
Collection中国科学院过程工程研究所
Corresponding AuthorXu, Lin; Tian, Ziqi; Tang, Yawen; Xue, 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, Jiangsu Optoelect Funct Mat & Engn Lab, Sch Chem & Chem Engn, Nanjing 211189, Peoples R China
3.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore
4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Inst Proc Engn, Ctr Mesosci, Beijing 100190, Peoples R China
6.Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225009, Jiangsu, Peoples R China
7.Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Li, Tongfei,Lu, Tingyu,Li, Xin,et al. Atomically Dispersed Mo Sites Anchored on Multichannel Carbon Nanofibers toward Superior Electrocatalytic Hydrogen Evolution[J]. ACS NANO,2021,15(12):20032-20041.
APA Li, Tongfei.,Lu, Tingyu.,Li, Xin.,Xu, Lin.,Zhang, Yiwei.,...&Xue, Junmin.(2021).Atomically Dispersed Mo Sites Anchored on Multichannel Carbon Nanofibers toward Superior Electrocatalytic Hydrogen Evolution.ACS NANO,15(12),20032-20041.
MLA Li, Tongfei,et al."Atomically Dispersed Mo Sites Anchored on Multichannel Carbon Nanofibers toward Superior Electrocatalytic Hydrogen Evolution".ACS NANO 15.12(2021):20032-20041.
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