Highly durable graphene nanoplatelets supported Pt nanocatalysts for oxygen reduction

被引：383

作者：

Shao, Yuyan ^{[1
]}

Zhang, Sheng ^{[1
]}

Wang, Chongmin ^{[1
]}

Nie, Zimin ^{[1
]}

Liu, Jun ^{[1
]}

Wang, Yong ^{[1
,2
]}

Lin, Yuehe ^{[1
]}

机构：

[1] Pacific NW Natl Lab, Richland, WA 99352 USA

[2] Washington State Univ, Gene & Linda Voiland Sch Engn & Bioengn, Pullman, WA 99164 USA

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 15期

关键词：

Graphene nanoplatelets; Polymer electrolyte membrane fuel cell; Oxygen reduction; Durability; Carbon nanotubes; FUEL-CELL DURABILITY; FUNCTIONALIZED GRAPHENE; METHANOL OXIDATION; MESOPOROUS CARBON; PLATINUM; GRAPHITE; CATALYSTS; NANOPARTICLES; ELECTROCATALYSTS; SHEETS;

D O I：

10.1016/j.jpowsour.2010.02.044

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report graphene nanoplatelets (GNPs), which exhibit the advantages of both single-layer graphene and highly graphitic carbon, as a durable alternative support material for Pt nanoparticles for oxygen reduction in fuel cells. Pt nanoparticles are deposited on poly(diallyldimethylammonium chloride) (PDDA)-coated GNP, and characterized with transmission electron microscopy. X-ray diffraction, Raman spectra, and electrochemical tests. Pt/GNP exhibits greatly enhanced electrochemical durability (2-3 times that of Pt/CNT and commercial Etek Pt/C). These are attributed to the intrinsic high graphitization degree of GNP and the enhanced Pt-carbon interaction in Pt/GNP. If considering that GNP can be easily mass produced from graphite. GNP is a promising, low-cost, and durable electrocatalyst support for oxygen reduction in fuel cells. (C) 2010 Elsevier B.V. All rights reserved.

引用

收藏

页码：4600 / 4605

页数：6

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