Effect of SnO2 doped Pt/C catalyst on the electrocatalytic oxidation of dimethyl ether

IF 3.9 4区化学 Q4 ELECTROCHEMISTRY

International Journal of Electrochemical Science Pub Date : 2025-05-01 Epub Date: 2025-02-18 DOI:10.1016/j.ijoes.2025.100975

Lehong Xing, Yungui Hao, Fanxu Meng, Yutong Zhao, Yue Zuo, Chenyang Sun, Xinting Shi, Yixin Wang

引用次数: 0

Abstract

The influence of the SnO₂ proportions on the activity of Pt/C+SnO₂ catalysts was examined. The results verified that Pt particles were evenly spread on the carriers. The Pt/C+SnO₂ catalysts demonstrated better electrooxidation activity than the Pt/C. The SnO₂ could carrier OH_ads groups. The OH_ads promoted the oxidation of CO_ads and released the Pt active sites. The Pt/C+SnO₂ catalyst with 20 % (mass) SnO₂ demonstrated the excellent activity and stability for Di-Methyl Ether (DME) oxidation. Excessive SnO₂ might hide the active sites of Pt, which would lead to the decrease of catalyst performance.

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SnO2掺杂Pt/C催化剂对二甲醚电催化氧化的影响

考察了SnO2配比对Pt/C+SnO2催化剂活性的影响。结果表明，Pt颗粒均匀地分布在载体上。Pt/C+SnO2催化剂的电氧化活性优于Pt/C催化剂。SnO2可以携带OHads基团。OHads促进了coad的氧化并释放了Pt活性位点。SnO2质量为20% %的Pt/C+SnO2催化剂对二甲醚（DME）具有良好的氧化活性和稳定性。过量的SnO2可能会掩盖Pt的活性位点，从而导致催化剂性能下降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Electrochemical Science 工程技术-电化学

CiteScore

3.00

自引率

20.00%

发文量

714

审稿时长

2.6 months

期刊介绍： International Journal of Electrochemical Science is a peer-reviewed, open access journal that publishes original research articles, short communications as well as review articles in all areas of electrochemistry: Scope - Theoretical and Computational Electrochemistry - Processes on Electrodes - Electroanalytical Chemistry and Sensor Science - Corrosion - Electrochemical Energy Conversion and Storage - Electrochemical Engineering - Coatings - Electrochemical Synthesis - Bioelectrochemistry - Molecular Electrochemistry