Highly improved oxygen reduction performance over Pt/C-dispersed nanowire network catalysts

被引：37

作者：

Kim, Hyung Ju ^{[1
]}

Kim, Yong Seok ^{[1
]}

Seo, Min Ho ^{[1
]}

Choi, Sung Mook ^{[1
]}

Cho, Joungmo ^{[2
]}

Huber, George W. ^{[2
]}

Kim, Won Bae ^{[1
]}

机构：

[1] Gwangju Inst Sci & Technol, Dept Mat Sci & Engn, Kwangju 500712, South Korea

[2] Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 01期

关键词：

Pt electrocatalyst; Nanowire network; Oxygen reduction reaction; Electrospinning; Fuel cells; FUEL-CELLS; ELECTROCATALYSTS; NANOPARTICLES; ALLOY; PTRH;

D O I：

10.1016/j.elecom.2009.10.029

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Electrochemical reduction of oxygen is studied over a novel nanowire network catalyst made of highly-dispersed Pt nanoparticles into electrospun Pt nanowire network architecture, which shows an excellent mass activity increase by 50% or higher per equal Pt mass than the conventional cathode electrocatalysts of Pt/C in polymer electrolyte membrane fuel cells. (C) 2009 Elsevier B.V. All rights reserved.

引用

收藏

页码：32 / 35

页数：4

相关论文

共 11 条

[1]

BARD AJ, 2001, ELECTROCHEMICAL METH, pCH3

[2] Oxygen reduction catalysis of the Pt3Co alloy in alkaline and acidic media studied by x-ray photoelectron Spectroscopy and electrochemical methods [J].

Duong, Hung T. ;

Rigsby, Matthew A. ;

Zhou, Wei-Ping ;

Wieckowski, Andrzej .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (36) :13460-13465

[3] Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs [J].

Gasteiger, HA ;

Kocha, SS ;

Sompalli, B ;

Wagner, FT .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 56 (1-2) :9-35

[4] Pt and PtRh nanowire electrocatalysts for cyclohexane-fueled polymer electrolyte membrane fuel cell [J].

Kim, Hyung Ju ;

Kim, Yong Seok ;

Seo, Min Ho ;

Choi, Sung Mook ;

Kim, Won Bae .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (02) :446-449

[5] Electrospun bimetallic nanowires of PtRh and PtRu with compositional variation for methanol electrooxidation [J].

Kim, Yong Seok ;

Nam, Sang Hoon ;

Shim, Hee-Sang ;

Ahn, Hyo-Jin ;

Anand, Manish ;

Kim, Won Bae .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (07) :1016-1019

[6] Composited hybrid electrocatalysts of Pt-based nanoparticles and nanowires for low temperature polymer electrolyte fuel cells [J].

Kim, Yong Seok ;

Kim, Hyung Ju ;

Kim, Won Bae .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (05) :1026-1029

[7]

OHAYRE RP, 2006, FUEL CELLS, pCH3

[8] Exfoliated Graphene Separated by Platinum Nanoparticles [J].

Si, Yongchao ;

Samulski, Edward T. .

CHEMISTRY OF MATERIALS, 2008, 20 (21) :6792-6797

[9] Self-Assembled Pt/Mesoporous Silica-Carbon Electrocatalysts for Elevated-Temperature Polymer Electrolyte Membrane Fuel Cells [J].

Tang, Haolin ;

Jiang, San Ping .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (49) :19748-19755

[10] Synthesis of monodisperse Pt nanocubes and their enhanced catalysis for oxygen reduction [J].

Wang, Chao ;

Daimon, Hideo ;

Lee, Youngmin ;

Kim, Jaemin ;

Sun, Shouheng .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (22) :6974-+