Rationally designed nitrogen-doped carbon macroporous fibers with loading of single cobalt sites for efficient aqueous Zn-CO2 batteries

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

36 Scopus Citations
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Author(s)

  • Yafei Zhao
  • Zhihao Pei
  • Xue Feng Lu
  • Xin Wang

Detail(s)

Original languageEnglish
Pages (from-to)1480-1493
Journal / PublicationChem Catalysis
Volume2
Issue number6
Online published7 Jun 2022
Publication statusPublished - 16 Jun 2022
Externally publishedYes

Link(s)

Abstract

Atomically dispersed metal catalysts supported on the rigidly hollow matrix are promising materials for developing carbon-neutral technologies. Herein, we develop an elaborate multistep templating approach to fabricate cobalt single-atom-decorated nitrogen-doped carbon macroporous fibers (Co SAs@NCMFs). During the thermal reduction, the cobalt nanoparticles derived from the sintered Co2+ ions are formed at 600°C, which can be further transformed into unevenly loaded atomically dispersed cobalt sites at 1,000°C. The Co SAs@NCMF catalyst delivers excellent CO Faradaic efficiency (98.4%) and turnover frequency (38,390 h−1) at −1.0V versus reversible hydrogen electrode for CO2 electroreduction. Furthermore, benefiting from the multiple advantageous features, including rigidly hollow structure, high specific surface area, and accessible active sites, the Co SAs@NCMF electrode shows outstanding rechargeability and stable cycle life in aqueous Zn-CO2 batteries. © 2022 Elsevier Inc.

Research Area(s)

  • CO2 electroreduction, macroporous fibers, single cobalt sites, Zn-CO2 batteries

Citation Format(s)

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