The decoration of Pt₁Ni₃ nanoparticles supported on carbon black with Au adatoms and the electrocatalytic activity of the Au-decorated Pt₁Ni₃/C (Au/Pt₁Ni₃/C) for the oxidation of ethylene glycol (EG) in alkaline solution have been investigated. The decoration of Pt₁Ni₃/C with Au is performed by potentiostatically depositing a small amount of Au on Pt₁Ni₃/C, and the Au/Pt₁Ni₃/C catalysts with Au/Pt atomic ratios of ca. 0.02:1 and 0.08:1 are obtained. Physical and electrochemical characterizations reveal that a small part of the surface of Pt₁Ni₃ nanoparticles is covered by Au adatoms. In EG oxidation, the performances of Pt₁Ni₃/C before and after the Au decoration are quite different. Au/Pt₁Ni₃/C shows remarkably high peak intensity compared to Pt₁Ni₃/C, in spite of a decrease in the surface of Pt by Au adatoms. The low Pt content of Pt₁Ni₃ nanoparticles and the small Au loading also suggest advantages of the Au/Pt₁Ni₃/C catalysts in cost. The result of this study reveals a significant enhancing effect of Au adatoms on the activity of Pt₁Ni₃/C for EG oxidation.

炭黑上负载Au原子的Pt ₁ Ni ₃纳米粒子的装饰和Au修饰Pt ₁ Ni ₃ / C（Au / Pt ₁ Ni ₃ / C）对乙二醇（EG）氧化的电催化活性。已经研究了碱性溶液。通过在Pt ₁ Ni ₃ / C和Au / Pt ₁ Ni ₃上恒电位沉积少量Au来执行用Au装饰Pt ₁ Ni ₃ / C的操作。/ C催化剂，Au / Pt原子比为。获得0.02：1和0.08：1。物理和电化学特征表明，Pt ₁ Ni ₃纳米颗粒的一小部分表面被金原子吸附。在EG氧化中，At装饰前后Pt ₁ Ni ₃ / C的性能差异很大。尽管Au吸附剂使Pt的表面减少，但与Pt ₁ Ni ₃ / C相比，Au / Pt ₁ Ni ₃ / C的峰强度却非常高。Pt ₁ Ni ₃纳米粒子的低Pt含量和小的Au含量也表明了Au / Pt ₁ Ni的优势₃ / C催化剂的成本。这项研究的结果表明Au原子对Pt ₁ Ni ₃ / C的EG氧化活性具有明显的增强作用。