Acta Phys. -Chim. Sin. ›› 2017, Vol. 33 ›› Issue (1): 9-17.doi: 10.3866/PKU.WHXB201609202

• FEATURE ARTICLE • Previous Articles     Next Articles

Core-Shell Electrocatalysts for Oxygen Reduction Reaction

Qiao-Wan CHANG,Fei XIAO,Yuan XU,Min-Hua SHAO*   

  • Received:2016-08-02 Published:2016-12-29
  • Contact: Min-Hua SHAO
  • Supported by:
    The project was supported by the Research Grant Council of the Hong Kong Special Administrative Region, China(26206115)

Abstract:

The high cost of platinum in catalyst layers hinders the commercialization of proton exchange membrane fuel cells. This Account reviews recent progress on core-shell nanostructures for oxygen reduction reaction (ORR) in acidic media, which is the cathodic reaction in fuel cells. The synthesis, characterization and evaluation of different types of core-shell electrocatalysts are summarized. Various strategies to improve the performance of core-shell electrocatalysts, including dealloying, morphology control, and surface modification are presented. The issues of mass production and fuel cell performance of core-shell electrocatalysts are also discussed.

Key words: Core-shell structure, Proton exchange membrane fuel cell, Electrocatalysis, Platinum alloy, Palladium, Shape control

MSC2000: 

  • O646