In this paper, carbon-supported nickel hydroxide-doped platinum (Pt/Ni(OH)₂/C) nanocatalysts are synthesized by a two-step method, and the morphology and structure of Pt/Ni(OH)₂/C are studied by transmission electron microscope and X-ray diffraction analysis. The electrocatalytic performance of the Pt/Ni(OH)₂/C for borohydride oxidation reaction (BOR) is studied by using cyclic voltammetry, chronoamperometry, chronopotentiometry, and rotating disc electrode voltammetry. The Pt/Ni(OH)₂/C catalysts show much better catalytic performance than Pt/C, and Pt₍₅₀₎/Ni(OH)₂₍₅₀₎/C exhibits the best catalytic performance among all as-prepared Pt/Ni(OH)₂/C catalysts. Moreover, the electron transfer number (n) related to BOR is evaluated, and n of 3.5 is achieved on Pt₍₅₀₎/Ni(OH)₂₍₅₀₎/C electrode.

本文采用两步法合成了碳负载的氢氧化镍掺杂铂（Pt / Ni（OH）₂ / C）纳米催化剂，研究了Pt / Ni（OH）₂ / C的形貌和结构。通过透射电子显微镜和X射线衍射分析。通过循环伏安法，计时电流法，计时电位法和旋转盘电极伏安法研究了Pt / Ni（OH）₂ / C对硼氢化物氧化反应（BOR）的电催化性能。Pt / Ni（OH）₂ / C催化剂显示出比Pt / C更好的催化性能，Pt _（50） / Ni（OH）_2（50） / C在所有制备的Pt / Ni中表现出最好的催化性能（OH）₂/ C催化剂。此外，评估与BOR相关的电子转移数（n），并且在Pt _（50） / Ni（OH）_2（50） / C电极上获得n为3.5 。