▎ 摘　　要

Graphene quantum dots (GQDs)-supported palladium nanoparticles were synthesized by thermolytic reduction of PdCl2 in 1,2-propanediol at 80 degrees C in the presence of GQDs and then were subject to hydrothermal treatment at an elevated temperature within the range of 140 to 200 degrees C. Transmission electron microscopic measurements showed a raspberry-like morphology for the samples before and after hydrothermal treatment at temperatures