Optimization of the morphology and composition of noble metal architectures is essential to construct cathode electrocatalyst for fuel cells with high catalytic activity. Ultrathin nanowires with unique physical and chemical properties have attracted increasing research interest for a broad range of applications in electrochemical catalysis. Here, we report a simple preparation method of ultrafine alloy AuPd nanowires (AuPd NWs) with Boerdijk–Coxeter structure within 2 min for efficient oxygen reduction reaction (ORR) in 0.1 M KOH. The AuPd NWs have numerous exposed surface atoms and abundant structural defects that act as catalytic active sites, effectively enhanced ORR kinetics and charge transfer. Compared with AuPd nanoparticles and Pt/C catalysts, the constructed AuPd NWs exhibit excellent electrochemical ORR activity and stability. This work provides a feasible and novel strategy for the design and construction of defect-rich ultrafine bimetallic nanowires toward promising electrocatalytic applications.

优化贵金属结构的形态和组成对于构建具有高催化活性的燃料电池阴极电催化剂至关重要。具有独特物理和化学性质的超薄纳米线因其在电化学催化中的广泛应用而引起了越来越多的研究兴趣。在这里，我们报告了一种在 2 分钟内制备具有 Boerdijk-Coxeter 结构的超细合金 AuPd 纳米线 (AuPd NWs) 的简单方法，用于在 0.1 M KOH 中进行有效的氧还原反应 (ORR)。AuPd NWs具有大量暴露的表面原子和丰富的结构缺陷作为催化活性位点，有效地增强了ORR动力学和电荷转移。与AuPd纳米颗粒和Pt/C催化剂相比，构建的AuPd纳米线表现出优异的电化学ORR活性和稳定性。