Ternary nanoalloys used as electrochemical ethanol oxidation catalysts for direct ethanol fuel cells are confronted with poor stability issues under harsh acidic operating conditions. To address this issue, a carbon-supported quinary PtCuSnWNb high-entropy nanoalloy (denoted as PtCuSnWNb/C) was synthesized by using a polyol reduction method. Due to the unique high-entropy mixing states and strong catalyst–support interactions, PtCuSnWNb/C shows robust structural and compositional stability.

中文翻译：

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高熵 PtCuSnWNb 纳米合金作为乙醇氧化电催化高效稳定的催化剂

用作直接乙醇燃料电池的电化学乙醇氧化催化剂的三元纳米合金在恶劣的酸性操作条件下面临着稳定性差的问题。针对这一问题，采用多元醇还原法合成了碳载五元PtCuSnWNb高熵纳米合金（记为PtCuSnWNb/C）。由于独特的高熵混合态和强催化剂-载体相互作用，PtCuSnWNb/C 显示出强大的结构和成分稳定性。