Pt decorated (CoMnFeCrNi)3O4 high-entropy oxide for low-temperature combustion of C3H8

IF 6.7 1区工程技术 Q2 ENERGY & FUELS

Fuel Pub Date : 2025-03-17 DOI:10.1016/j.fuel.2025.135090

Lihong Xie , Yaohun Dun , Qiji Wang , Jie Xu , Song Li , Rong Chen , Chun Du , Bin Shan

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引用次数: 0

Abstract

High-entropy oxides (HEOs) have attracted significant attention as catalyst materials due to their unique high-entropy effect. However, their catalytic performance is often limited by a low specific surface area, a result of high-temperature synthesis. In this study, we prepared (CoMnFeCrNi)₃O₄ catalysts with high surface areas using the solution combustion synthesis method. Subsequently, Pt/(CoMnFeCrNi)₃O₄ composite catalysts for C₃H₈ combustion were synthesized through atomic layer deposition. Comprehensive characterizations confirmed the single spinel structure of the HEOs and the high dispersion of the loaded Pt nanoparticles. Notably, the best-performing Pt/(CoMnFeCrNi)₃O₄ composite catalyst exhibited remarkable C₃H₈ combustion activity, achieving 90% conversion of C₃H₈ at 302 °C, while maintaining good stability and water resistance. This performance enhancement is attributed to the activation of oxygen species at the Pt-HEO interface, which facilitates the decomposition of formate species during C₃H₈ combustion.

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来源期刊

Fuel 工程技术-工程：化工

CiteScore

12.80

自引率

20.30%

发文量

3506

审稿时长

64 days

期刊介绍： The exploration of energy sources remains a critical matter of study. For the past nine decades, fuel has consistently held the forefront in primary research efforts within the field of energy science. This area of investigation encompasses a wide range of subjects, with a particular emphasis on emerging concerns like environmental factors and pollution.