Understanding the Activity of Co-N4−xCx in Atomic Metal Catalysts for Oxygen Reduction Catalysis - Details

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Abstract：

Atomic　metal　catalysis　(AMC)　provides　an　effective　way　to　enhance　activity　for　the　oxygen　reduction　reaction　(ORR).　Cobalt　anchored　on　nitrogen-doped　carbon　materials　have　been　extensively　reported.　The　carbon-hosted　Co-N4　structure　was　widely　considered　as　the　active　site;　however,　it　is　very　rare　to　investigate　the　activity　of　Co　partially　coordinated　with　N,　for　example,　Co-N4−xCx.　Herein,　the　activity　of　Co-N4−xCx　with　tunable　coordination　environment　is　investigated　as　the　active　sites　for　ORR　catalysis.　The　defect　(di-vacancies)　on　carbon　is　essential　for　the　formation　of　Co-N4−xCx.　N　species　play　two　important　roles　in　promoting　the　intrinsic　activity　of　atomic　metal　catalyst:　N　coordinated　with　Co　to　manipulate　the　reactivity　by　modification　of　electronic　distribution　and　N　helped　to　trap　more　Co　to　increase　the　number　of　active　sites.　©　2020　Wiley-VCH　Verlag　GmbH　&　Co.　KGaA,　Weinheim

Keyword：

active sites; cobalt; defects; N species; oxygen reduction reaction

Community：

[ 1 ] [Yang, Q.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 2 ] [Yang, Q.]School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan CampusQLD 4111, Australia
[ 3 ] [Jia, Y.]School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan CampusQLD 4111, Australia
[ 4 ] [Wei, F.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
[ 5 ] [Zhuang, L.]School of Chemical Engineering, The University of Queensland, Queensland, 4111, Australia
[ 6 ] [Yang, D.]College of Environmental Science and Engineering, Qingdao University, Qingdao, 266071, China
[ 7 ] [Liu, J.]School of Materials Science and Engineering, Nanjing University of Science and Technology, Jiangsu, 210094, China
[ 8 ] [Wang, X.]School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan CampusQLD 4111, Australia
[ 9 ] [Lin, S.]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002, China
[ 10 ] [Yuan, P.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 11 ] [Yao, X.]School of Environment and Science, Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan CampusQLD 4111, Australia
[ 12 ] [Yao, X.]College of Chemistry, Jilin University, Changchun, 130012, China

Reprint 's Address：

[Yuan, P.]National Engineering Research Center of Chemical Fertilizer Catalyst, College of Chemical Engineering, Fuzhou UniversityChina

Email：

yuanpei@fzu.edu.cn

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Source ：

Angewandte Chemie - International Edition

ISSN： 1433-7851

Year： 2020

Issue： 15

Volume： 59

Page： 6122-6127

1 5 . 3 3 6

JCR@2020

1 6 . 1 0 0

JCR@2023

ESI HC Threshold：160

JCR Journal Grade：1

CAS Journal Grade：2

Cited Count：

WoS CC Cited Count：

SCOPUS Cited Count： 170

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 2

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