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.

引用

页码：5344 / 5347

页数：4

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