Growth Mechanism of palladium nanoparticles on single layer graphene via electrodeposition

초록

Constructing hybrid structure of carbon materials and other materials is one of the promising methods for various applications (i.e. energy storage, chemical sensors and electronics), due to the synergy effect of hybrid structure which provides the good path of electron transport and high surface specific area. Hybrid structure synthesis of various materials and 1D, 2D carbon materials has continuously been studied for enhancing their performances. However, there are several problems such as repeatable synthesis and the binding degree between them. To circumvent these problems, we synthesized hybrid structure of palladium nanoparticles on single layer graphene via electrodeposition method and demonstrate the growth mechanism of palladium nanoparticles on single layer graphene y with experimental results (Raman , XPS, UV vis. etc) and density functional theory calculation . The results from structure analysis and DFT indicated that the hybrid structure is consisted of chemically binding with palladium and graphene as a strong cohesion unlike other mechanically synthesizing methods. Consequently, its sensing property about bending experiment has more stability than mechanically deposited palladium on graphene using sputtering.