TY - JOUR
T1 - Facile single-step preparation of Pt/N-graphene catalysts with improved methanol electrooxidation activity
AU - Zhao, Yuanyuan
AU - Zhou, Yingke
AU - Xiong, Bin
AU - Wang, Jie
AU - Chen, Xia
AU - O'Hayre, Ryan
AU - Shao, Zongping
PY - 2013/4
Y1 - 2013/4
N2 - In this work, we describe a facile single-step approach for the simultaneous reduction of graphene oxide to graphene, functional doping of graphene with nitrogen, and loading of the doped graphene with well-dispersed platinum (Pt) nanoparticles using a solvent mixture of ethylene glycol and N-methyl-2-pyrrolidone. The as-prepared Pt/nitrogen-doped graphene (N-graphene) catalysts are characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy while the electrocatalytic methanol oxidation properties of the catalysts are evaluated by cyclic voltammetry and chronoamperometry. Compared with an updoped Pt/graphene control catalyst, the Pt/N-graphene catalyst shows a narrower particle size distribution and improved catalytic performance. Considering the facile, green and effective single-step synthetic process for the Pt/N-graphene catalyst, the results are promising for the potential application of these materials in emerging fuel cell technologies.
AB - In this work, we describe a facile single-step approach for the simultaneous reduction of graphene oxide to graphene, functional doping of graphene with nitrogen, and loading of the doped graphene with well-dispersed platinum (Pt) nanoparticles using a solvent mixture of ethylene glycol and N-methyl-2-pyrrolidone. The as-prepared Pt/nitrogen-doped graphene (N-graphene) catalysts are characterized by X-ray powder diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy while the electrocatalytic methanol oxidation properties of the catalysts are evaluated by cyclic voltammetry and chronoamperometry. Compared with an updoped Pt/graphene control catalyst, the Pt/N-graphene catalyst shows a narrower particle size distribution and improved catalytic performance. Considering the facile, green and effective single-step synthetic process for the Pt/N-graphene catalyst, the results are promising for the potential application of these materials in emerging fuel cell technologies.
KW - Electrocatalyst
KW - Fuel cell
KW - Methanol electrooxidation
KW - Pt/N-graphene
UR - http://www.scopus.com/inward/record.url?scp=84876497880&partnerID=8YFLogxK
U2 - 10.1007/s10008-012-1968-0
DO - 10.1007/s10008-012-1968-0
M3 - 文章
AN - SCOPUS:84876497880
SN - 1432-8488
VL - 17
SP - 1089
EP - 1098
JO - Journal of Solid State Electrochemistry
JF - Journal of Solid State Electrochemistry
IS - 4
ER -