Catalytic Activity Enhancement for Oxygen Reduction on Epitaxial Perovskite Thin Films for Solid-Oxide Fuel Cells

被引：130
作者：
la O', Gerardo Jose [1 ]
Ahn, Sung-Jin [1 ]
Crumlin, Ethan [1 ]
Orikasa, Yuki [1 ]
Biegalski, Michael D. [2 ]
Christen, Hans M. [2 ]
Shao-Horn, Yang [1 ]
机构：
[1] MIT, Electrochem Energy Lab, Cambridge, MA 02139 USA
[2] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2010年 / 49卷 / 31期
关键词：
electrochemistry; epitaxy; fuel cells; heterogeneous catalysis; perovskite phases; LA1-XSRXMN1-YCOYO3+/-DELTA PEROVSKITES; IONIC-CONDUCTIVITY; DIFFUSION; TRANSPORT; KINETICS; EXCHANGE; ELECTRODE; CATHODE;
D O I：
10.1002/anie.201001922
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Figure Presented The active ingredient: La0.8Sr 0.2CoO3-δ (LSC) epitaxial thin films are prepared on (001 )-oriented yttria-stabilized zirconia (YSZ) single crystals with a gadolinium-doped ceria (GDC) buffer layer (see picture). The LSC epitaxial films exhibit better oxygen reduction kinetics than bulk LSC. The enhanced activity is attributed in part to higher oxygen nonstoichiometry. © 2010 Wiley-VCH Verlag GmbH & Co. KCaA, Weinheim.
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收藏
页码：5344 / 5347
页数：4
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