Applied Catalysis2022，Vol.3077.DOI:10.1016/j.apcatb.2022.121147

A fully-conjugated covalent organic framework-derived carbon supporting ultra-close single atom sites for ORR

Yang, Shuai Li, Xuewen Tan, Tingyuan Mao, Jianing Xu, Qing Liu, Minghao Miao, Qiyang Mei, BingBao Sun, Fanfei Ma, Jingyuan Qiao, Panzhe Gu, Songqi Zeng, Gaofeng Jiang, Zheng
Applied Catalysis2022，Vol.3077.DOI:10.1016/j.apcatb.2022.121147
✕
  • NSTL
  • Elsevier

A fully-conjugated covalent organic framework-derived carbon supporting ultra-close single atom sites for ORR

Yang, Shuai 1Li, Xuewen 1Tan, Tingyuan 1Mao, Jianing 1Xu, Qing 2Liu, Minghao 1Miao, Qiyang 1Mei, BingBao 1Sun, Fanfei 1Ma, Jingyuan 1Qiao, Panzhe 1Gu, Songqi 1Zeng, Gaofeng 2Jiang, Zheng1
扫码查看

作者信息

  • 1. Chinese Acad Sci
  • 2. Univ Chinese Acad Sci
  • 折叠

Abstract

Covalent organic frameworks linked by C=C bonds have gained great attention for various application, and their fully conjugated skeletons were potentially conversed into two-dimensional (2D) carbons. Herein, we described a novel strategy to fabricate 2D carbon nanorods from a sp(2) carbon linked COF, which had a high surface area of 804.8 m(2) g(-1). The one-dimensional channels confined the Fe ions during pyrolysis, which facilitated to form ultra-close atomic sites. The resulting catalyst displayed high catalytic activity towards oxygen reduction reaction, with a half-wave potential of 0.82 V and a mass activity of 4087.9 mA mg(-1) at 0.7 V versus RHE, which were high than those of Pt/C (0.81 V and 126.3 mA mg(-1)). The theoretical calculation revealed the close FeN4 sites achieved a lower *OH adsorption energy than isolated FeN4 sites. This work provides a new insight into developing single atom catalysts from COFs.

Key words

Derived covalent organic framework/Oxygen reduction/Single atom catalysis/OXYGEN REDUCTION REACTION/HYDROGEN-PRODUCTION/IDENTIFICATION/CATALYSTS/BATTERIES

引用本文复制引用

出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量33
参考文献量63
段落导航相关论文