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Author:

Yang, Haichao (Yang, Haichao.) | Xie, Ao (Xie, Ao.) | Tang, Yang (Tang, Yang.) | Wang, Zixiang (Wang, Zixiang.) | Zhang, Jinpeng (Zhang, Jinpeng.) | Kong, Lingpo (Kong, Lingpo.) | Song, Peng (Song, Peng.) | Sun, Yanzhi (Sun, Yanzhi.) | Yang, Xiaojin (Yang, Xiaojin.) | Wan, Pingyu (Wan, Pingyu.)

Indexed by:

EI Scopus SCIE

Abstract:

It is a great challenge to fabricate highly efficient pH-universal electrocatalysts for oxygen reduction reaction (ORR). Herein, a facile strategy, which includes coating the Fe modified ZIF8 on Cu foil and in situ pyrolysis to evaporate and dope Cu into the MOF derived carbon, is developed to fabricate Fe/Cu-N co-doped carbon material (Cu/Fe-NC). Profiting from the modulated electron distribution and textual properties, well-designed Cu/Fe-NC exhibits superior half-wave potential (E-1/2) of 0.923 V in alkaline, 0.757 V in neutral and comparable 0.801 V in acid electrolytes, respectively. Furthermore, the ultralow peroxides yield of ORR demonstrates the high selectivity of Cu/Fe-NC in full pH scale electrolytes. As expected, the self-made alkaline and neutral zinc-air batteries equipped with Cu/Fe-NC cathode display excellent discharge voltages, outstanding peak power densities and remarkable stability. This work opens a new way to fabricate highly efficient and pH-universal electrocatalysts for ORR through strategy of Fe/Cu-N co-doping, Cu foil evaporation and carbon defects capture.

Keyword:

ultralow peroxide yield pH universal thermo-triggering strategy zinc-air battery oxygen reduction reaction

Author Community:

  • [ 1 ] [Yang, Haichao]Beijing Univ Chem Technol, Inst Appl Electrochem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 2 ] [Xie, Ao]Beijing Univ Chem Technol, Inst Appl Electrochem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 3 ] [Tang, Yang]Beijing Univ Chem Technol, Inst Appl Electrochem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 4 ] [Wang, Zixiang]Beijing Univ Chem Technol, Natl Fundamental Res Lab New Hazardous Chem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 5 ] [Zhang, Jinpeng]Beijing Univ Chem Technol, Natl Fundamental Res Lab New Hazardous Chem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 6 ] [Sun, Yanzhi]Beijing Univ Chem Technol, Natl Fundamental Res Lab New Hazardous Chem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 7 ] [Yang, Xiaojin]Beijing Univ Chem Technol, Natl Fundamental Res Lab New Hazardous Chem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 8 ] [Wan, Pingyu]Beijing Univ Chem Technol, Natl Fundamental Res Lab New Hazardous Chem, 15 North Third Ring East Rd, Beijing 100029, Peoples R China
  • [ 9 ] [Kong, Lingpo]China Coal Res Inst, Mine Mat Branch, 5 Qingniangou East Rd, Beijing 100013, Peoples R China
  • [ 10 ] [Song, Peng]Beijing Univ Technol, Dept Environm & Chem Engn, Beijing Key Lab Green Catalysis & Separat, 100 Pingleyuan, Beijing 100124, Peoples R China

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Source :

CHEMISTRY-A EUROPEAN JOURNAL

ISSN: 0947-6539

Year: 2021

Issue: 2

Volume: 28

4 . 3 0 0

JCR@2022

ESI Discipline: CHEMISTRY;

ESI HC Threshold:96

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 11

SCOPUS Cited Count: 11

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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