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Author:

Ma, Shuangshuang (Ma, Shuangshuang.) | Su, Panpan (Su, Panpan.) | Huang, Wenjuan (Huang, Wenjuan.) | Jiang, San Ping (Jiang, San Ping.) | Bai, Shiyang (Bai, Shiyang.) | Liu, Jian (Liu, Jian.)

Indexed by:

EI Scopus SCIE

Abstract:

Electrochemical CO2 reduction to value-added chemicals is a critical and challenging process for research of sustainable energy. Herein, we synthesize new nickel single atom catalysts embedded in nitrogen doped hollow carbon spheres (Ni-N/C-x) via thermal treatment of Ni salts and nitrogen doped hollow carbon spheres (N/C-x). The state of Ni species on Ni-N/C-x can be tuned by the nitrogen species of N/C-x and pyrrolic-N favors the formation of atomic Ni species. Two catalysts, namely, Ni-N/C-1/4 contains more pyrrolic-N and more amount of atomic Ni species than that on Ni-N/C-3/2 have been prepared. During all the measurement potential range, Ni-N/C-1/4 displays a much higher catalytic activity for CO2 reduction to CO than Ni-N/C-3/2. Within the potential range of -0.63 V to -0.98 V versus reversible hydrogen electrode (RHE), the faradaic efficiencies of CO on Ni-N/C-1/4 exceed 70 %. Furthermore, Ni-N/C-1/4 exhibits high selectivity for CO and excellent stability during 4.5 h of CO2 reduction electrolysis at the potential of -0.78 V versus RHE.

Keyword:

Hollow structure Nanoreactor CO2 reduction Electrocatalysis Single atom catalyst

Author Community:

  • [ 1 ] [Ma, Shuangshuang]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Bai, Shiyang]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Coll Environm & Energy Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Ma, Shuangshuang]Chinese Acad Sci Dalian, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
  • [ 4 ] [Su, Panpan]Chinese Acad Sci Dalian, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
  • [ 5 ] [Huang, Wenjuan]Chinese Acad Sci Dalian, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
  • [ 6 ] [Liu, Jian]Chinese Acad Sci Dalian, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
  • [ 7 ] [Huang, Wenjuan]Shanghai Univ Elect Power China, Coll Math & Phys, Shanghai 200090, Peoples R China
  • [ 8 ] [Jiang, San Ping]Curtin Univ, Dept Minerals Energy & Chem Engn, Fuels & Energy Technol Inst, Perth, WA 6102, Australia
  • [ 9 ] [Jiang, San Ping]Curtin Univ, WA Sch Mines, Perth, WA 6102, Australia
  • [ 10 ] [Liu, Jian]Univ Surrey, DICP Surrey Joint Ctr Future Mat, Dept Chem & Proc Engn, Guildford, Surrey, England

Reprint Author's Address:

  • [Bai, Shiyang]Beijing Univ Technol, Dept Chem & Chem Engn, Beijing Key Lab Green Catalysis & Separat, Coll Environm & Energy Engn, Beijing 100124, Peoples R China;;[Su, Panpan]Chinese Acad Sci Dalian, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China;;[Liu, Jian]Chinese Acad Sci Dalian, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China;;[Liu, Jian]Univ Surrey, DICP Surrey Joint Ctr Future Mat, Dept Chem & Proc Engn, Guildford, Surrey, England

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Source :

CHEMCATCHEM

ISSN: 1867-3880

Year: 2019

Issue: 24

Volume: 11

Page: 6092-6098

4 . 5 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:166

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 47

SCOPUS Cited Count: 51

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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