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
- Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction
- 中国化学工程学报（英文） 2026年94卷第6期页码：185-195
- 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：
  
  the National High Technology Research and Development Program of China(2021YFB4001700);the Major Fundamental Research Program of Natural Science Foundation of Shandong Province(ZR2022ZD10);the Qingdao Natural Science Foundation(23-2-1-221-zyyd-jch);Qingdao New Energy Shandong Laboratory Open Project(QNESL OP 202303)
- DOI：
  中图分类号：
- 收稿：2025-10-15，
  
  修回：2025-12-14，
  
  录用：2025-12-14，
  
  网络首发：2026-02-05，
  
  纸质出版：2026-06
- Accepted：
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Sun Congyue, Zhang Yuqing, Xia Longfei, 等. Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction[J]. 中国化学工程学报（英文）, 2026,94(6):185-195.

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.
Sun Congyue, Zhang Yuqing, Xia Longfei, 等. Synergism of highly graphitic N-doped graphene-like carbon and Pt@PtCo core-shell structure for efficient oxygen reduction reaction[J]. 中国化学工程学报（英文）, 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

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