Issue 44, 2023

Nanostructure engineering of Pt/Pd-based oxygen reduction reaction electrocatalysts

Abstract

Increasing the atomic utilization of Pt and Pd elements is the key to the advancement and broad dissemination of fuel cells. Central to this task is the design and fabrication of highly active and stable Pt- or Pd-based electrocatalysts for the oxygen reduction reaction (ORR), which requires a comprehensive understanding of the ORR pathways and mechanism. Past endeavors have accumulated a wealth of knowledge about the Pt/Pd-based ORR electrocatalysts based on structure engineering, while a systematic review of the nanostructure engineering of Pt/Pd-based ORR electrocatalysts has been rarely reported. In this review, we provide a systematic discussion about the current status of Pt/Pd-based ORR electrocatalysts from the perspective of nanostructure engineering, and we highlight the ORR pathways, mechanisms and theories in order to understand the ORR in a more complex nanocatalyst. Particularly, the underlying structure–function relationship of Pt/Pd-based ORR electrocatalysts is specifically highlighted, which will guide the future synthesis of more efficient ORR electrocatalysts.

Graphical abstract: Nanostructure engineering of Pt/Pd-based oxygen reduction reaction electrocatalysts

Article information

Article type
Perspective
Submitted
25 7月 2023
Accepted
25 10月 2023
First published
06 11月 2023

Phys. Chem. Chem. Phys., 2023,25, 30172-30187

Nanostructure engineering of Pt/Pd-based oxygen reduction reaction electrocatalysts

L. Li, X. Ye, Q. Xiao, Q. Zhu, Y. Hu and M. Han, Phys. Chem. Chem. Phys., 2023, 25, 30172 DOI: 10.1039/D3CP03522K

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