Issue 57, 2024

Solid state preparation of carbon-supported Pt2Ca nanoparticles for the oxygen reduction reaction

Abstract

Pt2Ca nanoparticles with a mean size diameter of 6 nm can be prepared by heating K2PtCl6, CaH2, carbon black and KCl at 400–500 °C. A mechanism study suggests that the formation of the Pt2Ca phase at moderate temperature is enabled by the fast ion transport via the vacancies in the KCl–CaH2 solid solution. The Pt2Ca nanoparticles exhibit high performance for the oxygen reduction reaction in acid due to optimal adsorption energy of the oxygen intermediate.

Graphical abstract: Solid state preparation of carbon-supported Pt2Ca nanoparticles for the oxygen reduction reaction

Supplementary files

Article information

Article type
Communication
Submitted
25 Apr 2024
Accepted
14 Jun 2024
First published
17 Jun 2024

Chem. Commun., 2024,60, 7323-7326

Solid state preparation of carbon-supported Pt2Ca nanoparticles for the oxygen reduction reaction

R. Jin, Z. Xie, K. Kadeer, X. Li, Y. Zhang and J. Zheng, Chem. Commun., 2024, 60, 7323 DOI: 10.1039/D4CC01978D

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