Study on Preparation Process of Pd-Ni Alloy Nano-catalyst for Cathode reduction in Direct NaBH_4 - H_2O_2 Fuel Cell

摘要

In this paper, we prepared Ni/C, Pd/C and Pd-Ni/C binary alloy nano-catalysts by the impregnation-reduction method. The structures of all catalysts were characterized by XRD and TEM. The electro-catalytic performance of all catalysts on H_2O_2 reduction were studied by cyclic voltammetry (CV) and linear sweep voltammetry (LSV). The results show that Pd-Ni binary alloy nano-catalyst is obtained, whose catalytic activity is extremely close to pure palladium catalyst with the same metal loading, and it has better catalytic performance when palladium was reduced preferentially in prepare process.