Highly dispersed Pd nanoparticles on chemically modified graphene with aminophenyl groups for formic acid oxidation  

作　　者：杨苏东 申承民 佟浩 何卫 张校刚 高鸿钧 

机构地区：[1]College of Material Science and Engineering,Nanjing University of Aeronautics and Astronautics [2]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences

出　　处：《Chinese Physics B》2011年第11期190-196,共7页中国物理B（英文版）

基　　金：supported by the National Basic Research Program of China(Grant No.2007CB209700);the Graduate Student Innovation Foundation of Jiangsu Province,China(Grant No.CX09B_075Z);the Research Funding of Nanjing University of Aeronautics and Astronautics,China(Grant No.NS2010165)

摘　　要：A novel electrode material based on chemically modified graphene （CMG） with aminophenyl groups is covalently functionalized by a nucleophilic ring-opening reaction between the epoxy groups of graphene oxide and the aminophenyl groups of p-phenylenediamine. Palladium nanoparticles with an average diameter of 4.2 nm are deposited on the CMG by a liquid-phase borohydride reduction. The electrocatalytic activity and stability of the Pd/CMG composite towards formic acid oxidation are found to be higher than those of reduced graphene oxide and commercial carbon materials such as Vulcan XC-72 supported Pd electrocatalysts.A novel electrode material based on chemically modified graphene （CMG） with aminophenyl groups is covalently functionalized by a nucleophilic ring-opening reaction between the epoxy groups of graphene oxide and the aminophenyl groups of p-phenylenediamine. Palladium nanoparticles with an average diameter of 4.2 nm are deposited on the CMG by a liquid-phase borohydride reduction. The electrocatalytic activity and stability of the Pd/CMG composite towards formic acid oxidation are found to be higher than those of reduced graphene oxide and commercial carbon materials such as Vulcan XC-72 supported Pd electrocatalysts.

关 键 词：chemically modified graphene fuel cell ELECTROCATALYSIS Pd nanoparticles 

分 类 号：O613.71[理学—无机化学]