To address the insufficient electrocatalytic activity and stability of formic acid oxidation reaction (FAOR) electrocatalysts, as well as their high cost, we herein demonstrate the facile hydrothermal synthesis of ultrathin AgPt alloy nanowires using amine-terminated poly(N-isopropylacrylamide) (PNIPAM-NH₂) as a structure-directing agent. The initial generation of AgCl precipitates, subsequent formation of AgPt nanoparticles, and their oriented attachment account for the formation of ultrathin AgPt alloy nanowires. Benefiting from their unique 1D anisotropy and alloyed composition, the prepared ultrathin AgPt nanowires exhibit a superior electrocatalytic activity and better CO tolerance for the FAOR, reaching a 1.6-fold and 3.7-fold higher specific current density than AgPt nanoparticles and a commercial Pt black catalyst, respectively. Additionally, the ultrathin AgPt alloy nanowires manifest a superior electrochemical stability and structural robustness during electrocatalysis, making them a promising FAOR electrocatalyst. This work not only provides a reliable strategy for the synthesis of noble metal-based ultrathin nanowires, but also opens an avenue towards the rational design of efficient electrocatalysts for fuel cell systems.

中文翻译：

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AgPt合金超薄纳米线作为甲酸氧化的高性能电催化剂

为了解决甲酸氧化反应（FAOR）电催化剂的不足的电催化活性和稳定性以及其高成本，我们在本文中证明了使用胺封端的聚（N-异丙基丙烯酰胺）（PNIPAM- NH ₂）作为结构导向剂。AgCl沉淀物的初始生成，随后形成的AgPt纳米颗粒及其定向附着是超薄AgPt合金纳米线形成的原因。得益于其独特的一维各向异性和合金化成分，制备的超薄AgPt纳米线对FAOR表现出优异的电催化活性和更好的CO耐受性，比电流密度比AgPt纳米颗粒和市售Pt黑色催化剂高1.6倍和3.7倍， 分别。此外，超薄AgPt合金纳米线在电催化过程中表现出优异的电化学稳定性和结构坚固性，使其成为有前途的FAOR电催化剂。这项工作不仅为合成基于贵金属的超薄纳米线提供了可靠的策略，