A General Strategy for the Synthesis of PtM (M = Fe, Co, Ni) Decorated Three-Dimensional Hollow Graphene Nanospheres for Efficient Methanol Electrooxidation
Qiu, XY (Qiu, Xiaoyu)[ 1 ] ; Li, TC (Li, Tiancheng)[ 2 ] ; Deng, SH (Deng, Sihui)[ 1 ] ; Cen, K (Cen, Ke)[ 1 ] ; Xu, L (Xu, Lin)[ 1 ]*（徐林）; Tang, YW (Tang, Yawen)[ 1 ]*（唐亚文）
[ 1 ] Nanjing Normal Univ, Sch Chem & Mat Sci, Collaborat Innovat Ctr Biomed Funct Mat, Jiangsu Key Lab New Power Batteries, Nanjing 210023, Jiangsu, Peoples R China
[ 2 ] Sichuan Univ, West China Hosp Stomatol, State Key Lab Oral Dis, Dept Orthodont, Chengdu 610041, Sichuan, Peoples R China
CHEMISTRY-A EUROPEAN JOURNAL,201801,24(6),1246-1252
A universal sacrificial template-based synthesis strategy was reported to prepare three dimensional (3D) reduced oxide graphene supported PtM (M = Fe, Co, Ni) hollow nanospheres (PtM/RGO HNSs). The inner 3D wrinkle-free graphene skeleton can promote electron and ion kinetics, resulting in enhancement for the permeation of small organic molecule in fuel cells. As inspired by this, the 3D PtM (M = Fe, Co, Ni)/RGO HNSs exhibit clearly enhanced electrocatalytic activity and durability towards the methanol oxidation reaction (MOR) in acidic medium compared with a commercial Pt/C catalyst. This study provides a versatile approach of realizing controlled synthesis of 3D graphene-metal hybrid nanostructures irrespective of the components of the metal domains, and will pave the way for the design of hetero-nanostructures with optimized morphologies and functions.