Modulation of oxygen-etching for generating nickel single atoms for efficient electroreduction of CO2 to syngas (CO/H2) - Details

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Abstract：

Metal　single-atom　catalysts　(SACs)　supported　on　carbon　mainly　produce　syngas　in　electrochemical　CO2　reduction　reaction　(CO2RR),　in　comparison　with　the　dominant　H2　production　on　nanoparticles.　However,　it　is　a　major　challenge　to　prepare　the　carbon-supported　SACs　without　the　presence　of　nanoparticles　using　conventional　pyrolysis.　Here,　we　report　the　approach　involving　oxygen　etching　at　250　°C　to　produce　MOF-derived　nickel/carbon　SAC　(Ni1@C-250A).　The　combination　of　oxygen　etching　with　acid　treatment　completely　removes　the　Ni　nanoparticles,　only　showing　the　existence　of　single-atom　Ni　species.　In　CO2RR,　the　Ni1@C-250A　exhibits　excellent　faradaic　efficiency　(FE)　of　∼　100%　for　syngas　production　with　the　excellent　stability　for　360　min　time-on-stream.　In　addition,　the　CO/H2　ratio　can　be　adjusted　in　a　wide　range　from　1.5:1　to　4.3:1.　This　approach　involving　oxygen　etching　offers　a　promising　strategy　to　dominantly　produce　SACs　used　for　CO2RR　to　generate　syngas,　which　is　an　important　platform　feedstock　for　the　utilization　of　carbon-based　energy.　©　2023　Elsevier　Inc.

Keyword：

Atoms Carbon Carbon dioxide Catalysts Electrolytic reduction Etching Hydrogen production Metal nanoparticles Nickel Oxygen Synthesis gas

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[ 1 ] [Li, Jiwei]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 2 ] [Xu, Junli]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 3 ] [Zhao, Jia]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350002, China
[ 4 ] [Fang, Yixin]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 5 ] [Du, Congcong]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 6 ] [Ding, Xingyu]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 7 ] [Ye, Jinyu]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 8 ] [Sun, Yifei]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 9 ] [Sun, Yifei]College of Energy, Xiamen University, Xiamen; 361102, China
[ 10 ] [Zhang, Kelvin H.L.]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 11 ] [Xie, Shunji]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China
[ 12 ] [Huang, Jianyu]Clean Nano Energy Center, State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao; 066004, China
[ 13 ] [Salaev, Mikhail]Chemical Faculty, Tomsk State University, 36 Lenina ave., Tomsk; 634050, Russia
[ 14 ] [Mamontov, Grigory]Chemical Faculty, Tomsk State University, 36 Lenina ave., Tomsk; 634050, Russia
[ 15 ] [Fai Ip, Weng]Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, China
[ 16 ] [Pan, Hui]Institute of Applied Physics and Materials Engineering, University of Macau, Macao SAR, China
[ 17 ] [Pan, Hui]Department of Physics and Chemistry, Faculty of Science and Technology, University of Macau, Macao SAR, China
[ 18 ] [Lin, Sen]State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou; 350002, China
[ 19 ] [Xiong, Haifeng]State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Xiamen; 361005, China

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Source ：

Journal of Catalysis

ISSN： 0021-9517

Year： 2023

Volume： 421

Page： 332-341

6 . 5

JCR@2023

6 . 5 0 0

JCR@2023

ESI HC Threshold：39

JCR Journal Grade：1

CAS Journal Grade：2

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WoS CC Cited Count：

SCOPUS Cited Count： 10

ESI Highly Cited Papers on the List： 0 Unfold All

WanFang Cited Count：

Chinese Cited Count：

30 Days PV： 1

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