Oxidized iridium nanodendrites as catalysts for oxygen evolution reactions

被引：60

作者：

Lee, Woong Hee ^{[1
]}

Kim, Hansung ^{[1
]}

机构：

[1] Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea

来源：

CATALYSIS COMMUNICATIONS | 2011年 / 12卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

Iridium; Dendrite; Oxygen evolution reaction; Water electrolysis; SOLID POLYMER ELECTROLYTE; WATER ELECTROLYSIS; ELECTROOXIDATION; OXIDE; REDUCTION; RHODIUM;

D O I：

10.1016/j.catcom.2010.11.003

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：

Iridium nanodendrites were synthesized using tetradecyltrimethyl ammonium bromide (TTAB) as an organic capping agent, and the electrocatalytic activity toward oxygen evolution reaction (OER) was evaluated. X-ray photoelectron spectroscopy revealed that an anodically grown iridium oxide film was created on the Ir dendrite through a repeated potential sweep between 0.04 and 1.54 V vs. SHE. The highly branched structure of the Ir dendrites with a particle size of similar to 10 nm provides an increased active facet area that is available for OER in comparison to a commercial Ir catalyst, resulting in enhanced activity toward OER. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：408 / 411

页数：4

共 20 条

[1] Platinum oxide as a catalyst in the reduction of organic compounds III Preparation and properties of the oxide of platinum obtained by the fusion of ceiloroplatinic acid with sodium nitrate
Adams, R
Shriner, RL
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1923, 45 : 2171 - 2179
[2] Baglio V, 2008, J NEW MAT ELECTR SYS, V11, P105
[3] Study of IrxRu1-xO2 oxides as anodic electrocatalysts for solid polymer electrolyte water electrolysis
Cheng, Jinbin
Zhang, Huamin
Chen, Guobao
Zhang, Yining
[J]. ELECTROCHIMICA ACTA, 2009, 54 (26) : 6250 - 6256
[4] CO ELECTROOXIDATION ON WELL-CHARACTERIZED PT-RU ALLOYS
GASTEIGER, HA
MARKOVIC, N
ROSS, PN
CAIRNS, EJ
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (02) : 617 - 625
[5] Platinum nanocube catalysts for methanol and ethanol electrooxidation
Han, Sang-Beom
Song, You-Jung
Lee, Jong-Min
Kim, Jy-Yeon
Park, Kyung-Won
[J]. ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (07) : 1044 - 1047
[6] Particle size dependence of the electrocatalytic activity of nanocrystalline RuO2 electrodes
Jirkovsky, J
Hoffmannová, H
Klementová, M
Krtil, P
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (06) : E111 - E118
[7] Shape effect of Pt nanocrystals on electrocatalytic hydrogenation
Kim, Cheonghee
Lee, Hyunjoo
[J]. CATALYSIS COMMUNICATIONS, 2009, 11 (01) : 7 - 10
[8] Pd-Pt Bimetallic Nanodendrites with High Activity for Oxygen Reduction
Lim, Byungkwon
Jiang, Majiong
Camargo, Pedro H. C.
Cho, Eun Chul
Tao, Jing
Lu, Xianmao
Zhu, Yimei
Xia, Younan
[J]. SCIENCE, 2009, 324 (5932) : 1302 - 1305
[9] ELECTROCHEMICAL STRUCTURE-SENSITIVE BEHAVIOR OF IRREVERSIBLY ADSORBED PALLADIUM ON PT(100), PT(111) AND PT(110) IN AN ACIDIC MEDIUM
LLORCA, MJ
FELIU, JM
ALDAZ, A
CLAVILIER, J
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1993, 351 (1-2): : 299 - 319
[10] RECENT ADVANCES IN SPE(R) WATER ELECTROLYZER
MCELROY, JF
[J]. JOURNAL OF POWER SOURCES, 1994, 47 (03) : 369 - 375

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