Abstract
Pt–Ni alloy with highly efficient 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 10[Formula: see text][Formula: see text] in 0.5[Formula: see text]M H2SO4. We believed that the convenient and scalable gamma irradiation technique might open a way for large-scale preparation of advanced water splitting catalysts.
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