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Polyoxometalate-Derived Hexagonal Molybdenum Nitrides (MXenes) Supported by Boron, Nitrogen Codoped Carbon Nanotubes for Efficient Electrochemical Hydrogen Evolution from Seawater
Jun Miao1,2; Zhongling Lang3; Xinyu Zhang4; Weiguang Kong1; Ouwen Peng1; Ye Yang2; Shuangpeng Wang2; Jiaji Cheng5; Tingchao He5; Abbas Amini6; Qingyin Wu7; Zhiping Zheng4,8; Zikang Tang2; Chun Cheng1
2018-12-13
Source PublicationAdvanced Functional Materials
ISSN1616-3028
Volume29Issue:8
Abstract

MXenes and doped carbon nanotubes (CNTs) have entered into research arenas for high-rate energy storage and conversion. Herein, a method of postsynthesis of MXenes in boron, nitrogen codoped CNTs (BNCNTs) is reported with their electrocatalytical hydrogen evolution performance. The encapsulation of hexagonal molybdenum nitrate nanoparticles (h-MoN NPs) into BNCNTs protects h-MoN NPs from agglomeration and poisoning in the complex environment. In principle, the synergism of B and N dopants on the doped CNTs and confined h-MoN NPs produces extremely active sites for electrochemical hydrogen evolution. Density functional theory calculations reveal that the active sites for hydrogen evolution originate from the synergistic effect of h-MoN(001)/CN (graphitic N doping) and h-MoN(001)/BNC. The h-MoN@BNCNT electrocatalyst exhibits a small overpotential of 78 mV at 10 mA cm−2 and Tafel slope of 46 mV per decade, which are dramatically improved over all reported MoN-based materials and doped CNTs. Additionally, it also exhibits outstanding electrochemical stability in environments with various pH values and seawater media from South China Sea.

KeywordDensity Functional Theory Calculations Doped Carbon Nanotubes Hydrogen Evolution Reaction Mxenes Polyoxometalate
DOI10.1002/adfm.201805893
URLView the original
Indexed BySCIE
Language英語English
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
WOS IDWOS:000459826500004
PublisherWILEY-V C H VERLAG GMBH, POSTFACH 101161, 69451 WEINHEIM, GERMANY
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Cited Times [WOS]:37   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding AuthorZikang Tang; Chun Cheng
Affiliation1.Department of Materials Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055, Guangdong, P. R. China
2.Key Laboratory of Bioinorganic and Synthetic Chemistry (MOE)Institute of Applied Physics and Materials EngineeringUniversity of MacauTaipa, Macau 999078, P. R. China
3.Key Laboratory of Polyoxometalate Science (MOE)Faculty of ChemistryNortheast Normal UniversityChangchun 130024, Jilin, P. R. China
4.Shenzhen Grubbs Institute and Department of ChemistrySouthern University of Science and TechnologyShenzhen 518055, Guangdong, P. R. China
5.College of Physics and EnergyShenzhen UniversityShenzhen 518060, Guangdong, P. R. China
6.Center for Infrastructure EngineeringWestern Sydney UniversityKingswood 2751, New South Wales, Australia
7.Department of ChemistryZhejiang UniversityHangzhou 310027, Zhejiang, P. R. China
8.Department of Chemistry & BiochemistryUniversity of ArizonaTucson, AZ 85721, USA
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Jun Miao,Zhongling Lang,Xinyu Zhang,et al. Polyoxometalate-Derived Hexagonal Molybdenum Nitrides (MXenes) Supported by Boron, Nitrogen Codoped Carbon Nanotubes for Efficient Electrochemical Hydrogen Evolution from Seawater[J]. Advanced Functional Materials,2018,29(8).
APA Jun Miao,Zhongling Lang,Xinyu Zhang,Weiguang Kong,Ouwen Peng,Ye Yang,Shuangpeng Wang,Jiaji Cheng,Tingchao He,Abbas Amini,Qingyin Wu,Zhiping Zheng,Zikang Tang,&Chun Cheng.(2018).Polyoxometalate-Derived Hexagonal Molybdenum Nitrides (MXenes) Supported by Boron, Nitrogen Codoped Carbon Nanotubes for Efficient Electrochemical Hydrogen Evolution from Seawater.Advanced Functional Materials,29(8).
MLA Jun Miao,et al."Polyoxometalate-Derived Hexagonal Molybdenum Nitrides (MXenes) Supported by Boron, Nitrogen Codoped Carbon Nanotubes for Efficient Electrochemical Hydrogen Evolution from Seawater".Advanced Functional Materials 29.8(2018).
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