Development of Double-Perovskite Compounds as Cathode Materials for Low-Temperature Solid Oxide Fuel Cells

被引：201

作者：

Yoo, Seonyoung ^{[1
]}

Jun, Areum ^{[1
]}

Ju, Young-Wan ^{[3
]}

Odkhuu, Dorj ^{[2
]}

Hyodo, Junji ^{[3
]}

Jeong, Hu Young ^{[5
]}

Park, Noejung ^{[2
]}

Shin, Jeeyoung ^{[6
]}

Ishihara, Tatsumi ^{[3
,4
]}

Kim, Guntae ^{[1
]}

机构：

[1] UNIST, Dept Energy Engn, Ulsan 689798, South Korea

[2] UNIST, Dept Phys, Sch Nat Sci, Ctr Multidimens Carbon Mat, Ulsan 689798, South Korea

[3] Kyushu Univ, Fac Engn, Dept Appl Chem, Fukuoka 8190395, Japan

[4] Kyushu Univ, Int Inst Carbon Neutral Energy Res, Fukuoka 8190395, Japan

[5] UNIST, UCRF, Ulsan 689798, South Korea

[6] Dong Eui Univ, Dept Mech Engn, Pusan 614714, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2014年 / 53卷 / 48期

基金：

新加坡国家研究基金会;

关键词：

ceramics; electrochemistry; energy conversion; fuel cells; perovskite phases; OXYGEN-ION DIFFUSION; LAYERED PEROVSKITE; ELECTRICAL-PROPERTIES; REDUCTION; PERFORMANCE; ELECTRODES; SURFACES; EXCHANGE; SOFCS; X=0;

D O I：

10.1002/anie.201407006

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A class of double-perovskite compounds display fast oxygen ion diffusion and high catalytic activity toward oxygen reduction while maintaining excellent compatibility with the electrolyte. The astoundingly extended stability of NdBa1-xCaxCo2O5+delta (NBCaCO) under both air and CO2- containing atmosphere is reported along with excellent electro-chemical performance by only Ca doping into the A site of NdBaCo2O5+delta (NBCO). The enhanced stability can be ascribed to both the increased electron affinity of mobile oxygen species with Ca, determined through density functional theory calculations and the increased redox stability from the coulometric titration.

引用

页码：13064 / 13067

页数：4

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