A Bifunctional Perovskite Catalyst for Oxygen Reduction and Evolution

被引：361

作者：

Jung, Jae-Il ^{[1
]}

Jeong, Hu Young ^{[2
]}

Lee, Jang-Soo ^{[1
]}

Kim, Min Gyu ^{[3
]}

Cho, Jaephil ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Sch Energy & Chem Engn, Ulsan 689798, South Korea

[2] Ulsan Natl Inst Sci & Technol, UNIST Cent Res Facil, Ulsan 689798, South Korea

[3] Pohang Univ Sci & Technol, Pohang Accelerator Lab, Beamline Res Div, Pohang 790784, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 18期

关键词：

electrocatalysts; heterogeneous catalysis; oxygen evolution reaction; oxygen reduction reaction; perovskites; DIELECTRIC-PROPERTIES; LACOO3; PEROVSKITE; THERMAL-EXPANSION; OXIDE; STABILITY; BEHAVIOR; COMPLEX; ORDER;

D O I：

10.1002/anie.201311223

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

La-0.3(Ba0.5Sr0.5)(0.7)Co0.8Fe0.2O3- is a promising bifunctional perovskite catalyst for the oxygen reduction reaction and the oxygen evolution reaction. This catalyst has circa 10nm-scale rhombohedral LaCoO3 cobaltite particles distributed on the surface. The dynamic microstructure phenomena are attributed to the charge imbalance from the replacement of A-site cations with La3+ and local stress on Co-site sub-lattice with the cubic perovskite structure.

引用

页码：4582 / 4586

页数：5

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