Synthesis of Pt-Ni Alloy Nanoparticles with Gamma Irradiation and Their Electrocatalytic Performances

Pt-Ni alloy with highly e +/- cient and durable property might be of great significance for hydrogen evolution reaction (HER). Herein we present an efficient one-pot gamma irradiation method to prepare alloyed PtNi, PtNi3 and Pt3Ni nanoparticles with inter-crossed network structure on a large scale. The electrochemical characterization evidenced that the catalytic activity and durability of Pt3Ni were comparable with those of commercial Pt/C for HER at the current density of 10mA . cm(-2) in 0.5M H2SO4. We believed that the convenient and scalable gamma irradiation technique might open a way for large-scale preparation of advanced water splitting catalysts.