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Citation: CHANG Qiao-Wan, XIAO Fei, XU Yuan, SHAO Min-Hua. Core-Shell Electrocatalysts for Oxygen Reduction Reaction[J]. Acta Physico-Chimica Sinica, ;2017, 33(1): 9-17. doi: 10.3866/PKU.WHXB201609202 shu

Core-Shell Electrocatalysts for Oxygen Reduction Reaction

Department of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Hong Kong, P. R. China

Received Date: 2 August 2016
Revised Date: 20 September 2016

Fund Project: The project was supported by the Research Grant Council of the Hong Kong Special Administrative Region, China (26206115).

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