Ultrafine high-entropy alloy nanoparticles for extremely superior electrocatalytic methanol oxidation

被引：4

作者：

Jin, Yu ^{[1
]}

Li, Ruojing ^{[2
]}

Zhang, Xiaodong ^{[1
]}

Cao, Kesheng ^{[1
]}

Liao, Binghua ^{[1
]}

Luo, Xiaoqiang ^{[1
]}

Li, Yanling ^{[1
]}

Ma, Wei ^{[1
]}

机构：

[1] Pingdingshan Univ, Sch Chem & Environm Engn, Pingdingshan 467000, Peoples R China

[2] Pingdingshan Univ, Sch Art & Design, Pingdingshan 467000, Peoples R China

来源：

MATERIALS LETTERS | 2023年 / 344卷

基金：

中国国家自然科学基金;

关键词：

Platinum; Ultrafine high-entropy alloy; Nanoparticles; Nanocomposites; Metals and alloys; Methanol oxidation;

D O I：

10.1016/j.matlet.2023.134421

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To develop highly efficient catalysts with low Pt content for electrocatalytic methanol oxidation reaction (MOR) is meaningful yet still challenged. Here, PtPdCdZnCo ultrafine high-entropy alloy (uf-HEA) nanoparticles (similar to 2.6 nm) were achieved by a facile one-pot chemical synthesis. As MOR catalyst, the uf-HEA displays ultrahigh mass activity of 2.86 and 11.1 A mg(Pt)(-1) in acidic and alkaline environments, respectively. That is the best acidic MOR catalyst so far by comparing with other reported Pt-based catalysts. Study suggests the outstanding MOR activity is attributed to the weakened reaction intermediates adsorption on uf-HEA surface.

引用

页数：4

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