▎ 摘　　要

This study presents a strategy to optimize FeNi nanoparticles (NPs) deposited onto reduced graphene oxide (RGO) in order to fabricate an efficient Pt-free counter electrode (CE) for use in a dye-sensitized solar cell (DSC). Nanohybrids exhibit a 3D network structure of RGO with high FeNi NP loading on the RGO surface. Well-dispersed Fe1-xNix (0