Chemical Research in Chinese Universities ›› 2024, Vol. 40 ›› Issue (4): 753-760.doi: 10.1007/s40242-024-4133-2

• Articles • Previous Articles    

Exploring the Predominant Factors Influencing the Oxygen Reduction Performance of PtCo/C Catalysts

LI Jinrong1, YU Xianghui1, SUN Qi1, PENG Yong2, CAO Shuang1, HOU Chun-Chao3, XU Qiang4   

  1. 1. College of Chemistry and Chemical Engineering, Institute for Sustainable Energy and Resources, Qingdao University, Qingdao 266071, P. R. China;
    2. Leibniz Institute for Catalysis e. V., Albert-Einstein-Strasse 29a, Rostock 18059, Germany;
    3. School of Materials Science and Engineering, Ocean University of China, Qingdao 266100, P. R. China;
    4. Shenzhen Key Laboratory of Micro/Nano-Porous Functional Materials (SKLPM), SUSTech-Kyoto University Advanced Energy Materials Joint Innovation Laboratory (SKAEM-JIL), Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Department of Chemistry and Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech), Shenzhen 518055, P. R. China
  • Received:2024-05-23 Online:2024-08-01 Published:2024-07-24
  • Contact: CAO Shuang,caoshuang@qdu.edu.cn;HOU Chun-Chao,houchunchao@ouc.edu.cn;XU Qiang,xuq@sustech.edu.cn E-mail:caoshuang@qdu.edu.cn;houchunchao@ouc.edu.cn;xuq@sustech.edu.cn
  • Supported by:
    This work was supported by National Natural Science Foundation of China (No. 22102086), the Shandong Provincial Natural Science Fund for Excellent Young Scientists Fund Program (Overseas), China (No. 2023HWYQ-059), the Shandong Provincial Natural Science Foundation, China (No. ZR2022MB028), the Major Fundamental Research Project of Shandong Natural Science Fund, China (No. ZR2023ZD54), the Taishan Scholar Program of Shandong Province, China (No. tsqnz20221113), the Fundamental Research Funds for the Central Universities, China (Nos. 862201013152, 202412008), the Youth Innovation Plan of Shandong Province, China(No. 2022KJ054), and the Alexander von Humboldt Foundation.

Abstract: PtCo nanoalloys (NAs) deposited on carbon black are emerging as robust electrocatalysts for addressing the sluggish kinetic issue of oxygen reduction reaction (ORR). However, developing a simple and low-cost method to synthesize PtCo/C with excellent performance is still a great challenge. In this work, a one-pot method was used to successfully obtain the PtCo NAs on commercial carbon supports of acetylene black and Ketjenblack ECP600JD, respectively. Compared with those grown on Ketjenblack ECP600JD, the PtCo NAs grown on acetylene black exhibited higher electrochemical surface area (ECSA) and mass activity (MA), which may be attributed to the different particle sizes of PtCo NAs, distinct hydrophilicity, electroconductivity and charge distribution between the carbon supports and PtCo NAs. Our study provides valuable insights into the optimal design of carbon-supported ORR electrocatalysts with exceptional activity and durability.

Key words: Oxygen reduction reaction, PtCo nanoalloy, Carbon-supported nanostructure, Acetylene black