Palladium (Pd) nanoparticles (NPs) supported on reduced graphene oxide (rGO) have been focused on a wide field of research, including fuel cells, organic reactions, and environmental protection. Among the various synthesis methods, spontaneous redox deposition based on the different redox potential is an efficient one-pot synthesis way for Pd NPs supported on rGO. This spontaneous redox deposition involves a reduction of bivalent Pd to metallic Pd0 and an oxidation of the sp2 carbon of rGO to oxygen-containing functional groups. The amount of Pd NPs deposited on rGO varied with pH, which was attributed to electrostatic interactions between the PdCl2 precursor and rGO. Here we show the size control of the Pd NPs deposited on rGO by controlling the exfoliation levels of rGO, the solvents types, the concentration and pH of the precursor solution.

One-pot synthesis with size-control of palladium nanoparticles on reduced graphene oxide by spontaneous redox deposition

253rd National Meeting (2017)

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