Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction

Sun Congyue; Zhang Yuqing; Xia Longfei; Xu Dongyan; Li Xiaojin; Ye Ke

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Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction

Updated：2026-08-24

- Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction
- Chinese Journal of Chemical Engineering Vol. 94, Issue 6, Pages: 185-195(2026)
- Affiliations：
  
  State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Chemical Engineering, Qingdao University of Science &Technology, Qingdao 266042, China
  Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
- Author bio：
  
  Corresponding authors. E-mail addresses: xdy0156@qust.edu.cn(D. Xu)
  lixj@qibebt.ac.cn(X. Li)
  yeke@qibebt.ac.cn(K. Ye)
- Funds：
- DOI：
  CLC：
- Received：15 October 2025，
  
  Revised：2025-12-14，
  
  Accepted：14 December 2025，
  
  Online First：05 February 2026，
  
  Published：2026-06
- Accepted：
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Sun Congyue, Zhang Yuqing, Xia Longfei, et al. Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction[J]. Chinese Journal of Chemical Engineering, 2026, 94(6): 185-195.
DOI：

Sun Congyue, Zhang Yuqing, Xia Longfei, et al. Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction[J]. Chinese Journal of Chemical Engineering, 2026, 94(6): 185-195. DOI：

摘要

Abstract

It is crucial to develop efficient

highly durable platinum-based oxygen reduction reaction (ORR) catalysts to advance fuel cell development. In this study

a series of N-doped graphene-like carbon (NGC) materials was synthesized by pyrolyzing a mixture of glucose and graphitic carbon nitride (g-C

)

with g-C

acting as both a structural template and a nitrogen source. An NGC material containing approximately 6.9% N was obtained at a mass ratio of 4:1 for g-C

to glucose and a pyrolysis temperature of 900℃. PtCo alloy nanoparticles were homogeneously anchored onto NGC

via

an impregnation-ethylene glycol reduction method. A core-shell structured catalyst consisting of a Pt shell surrounding a PtCo alloy core was subsequently fabricated by annealing the PtCo/NGC composite at 700℃. The resulting Pt@PtCo/NGC catalyst exhibits superior ORR activity

with mass activity 3.22 and 3.25 times higher than that of a commercial Pt/C catalyst under acidic and alkaline conditions

respectively. Furthermore

the ORR mechanism was systematically investigated through combined material characterization

electrochemical analysis

and DFT calculations

providing deeper insight into the electrocatalytic structure-activity relationship.

关键词

Keywords

references

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