Ionic-exchange immobilization of ultra-low loading palladium on a rGO electro-catalyst for high activity formic acid oxidation

• DOI: 10.1039/c8ra03043j
• Publication Date: 2018-05-22T09:43:56Z
• Authors: Jiuxiao Sun; Xingying Luo; Weiwei Cai; Jing Li; Zhao Liu; Jie Xiong; Zehui Yang
• Keywords: Chemistry; 01 natural sciences; 0104 chemical sciences

A formic acid oxidation electro-catalyst with ultra-low palladium (Pd) loading was prepared via an ionic exchange method by utilizing the acidic functional groups on graphene oxide (GO). After simultaneous reduction of exchanged Pd2+ and residual GO surface, reduced Pd catalyst supported (IE-Pd/rGO) obtained. Three times improved mass activity compared that conventional synthesized Pd/C exhibited for IE-Pd/rGO catalyst. More importantly, stability remarkably due to synergistic effect strong immobilization nanoparticles in situ doped N rGO support.