Graphene supported electrocatalysts for methanol oxidation

被引：183

作者：

Bong, Sungyool ^{[2
]}

Kim, Yang-Rae ^{[2
]}

Kim, In ^{[2
]}

Woo, Seunghee ^{[2
]}

Uhm, Sunghyun ^{[1
]}

Lee, Jaeyoung ^{[1
]}

Kim, Hasuck ^{[2
]}

机构：

[1] Gwangju Inst Sci & Technol, Ertl Ctr Electrochem & Catalysis, Kwangju 500712, South Korea

[2] Seoul Natl Univ, Dept Chem, Seoul 151747, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 01期

基金：

新加坡国家研究基金会;

关键词：

Graphene nanosheet; Methanol; Electro-oxidation; 80% Metal content; PtRu electrocatalysts; GRAPHITE OXIDE; CATALYST SUPPORT; CARBON NANOTUBE; NANOFIBERS; PRECURSORS; FILMS; ANODE; DMFC; PTRU;

D O I：

10.1016/j.elecom.2009.11.005

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Graphene nanosheet was prepared by modified Hummer's chemical method and utilized as a catalyst support of PtRu nanoparticles for the electro-oxidation of methanol. Home-made graphene nanosheet was clearly characterized by Raman spectroscopy and we applied colloidal method to synthesize with high metal content of 80 wt.% Pt-Ru catalyst, which is extensively clarified by HR-TEM and XRD analysis. 80 wt.% Pt-Ru/graphene nanosheet catalyst showed superior electrochemical activity toward methanol oxidation compared to Pt-Ru/Vulcan XC-72R. It is due to the significant increase of electrochemical active surface area for better catalyst utilization. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：129 / 131

页数：3

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