Gadolinium-doped ceria nanopowders synthesized by urea-based homogeneous co-precipitation (UBHP)

被引：35

作者：

Accardo, G. ^{[1
]}

Spiridigliozzi, L. ^{[2
]}

Cioffi, R. ^{[3
]}

Ferone, C. ^{[3
]}

Di Bartolomeo, E. ^{[4
]}

Yoon, Sung Pil ^{[1
]}

Dell'Agli, G. ^{[2
]}

机构：

[1] Korea Inst Sci & Technol, Fuel Cell Res Ctr, Hwarangno 14-Gil, Seoul 136791, South Korea

[2] Univ Cassino & Southern Lazio, Dept Civil & Mech Engn, INSTM Res Unit, Via G Di Biasio 43, I-03043 Cassino, FR, Italy

[3] Univ Parthenope Naples, Dept Engn, INSTM Res Unit, Ctr Direz,Is C4, I-80143 Naples, Italy

[4] Univ Roma Tor Vergata, Dept Chem Sci & Technol, Viale Ric Sci, I-00133 Rome, Italy

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2017年 / 187卷

基金：

新加坡国家研究基金会;

关键词：

Urea-based homogeneous co-precipitation; Nanopodwers; Gadolinium doped ceria; Electrolytes; Solid oxide fuel cell; OXIDE FUEL-CELL; ELECTROCHEMICAL PROPERTIES; SINTERING BEHAVIOR; PRECIPITATION; CONDUCTIVITY; ZIRCONIA; POWDER; ANODE;

D O I：

10.1016/j.matchemphys.2016.11.060

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Gadolinium (10%)-doped ceria was successfully synthesized by using an urea-based co-precipitation method (UBHP). A single fluorite phase was obtained after a low temperature (400 degrees C) calcination treatment. The resulting powders showed grains of nanometric size with some agglomerations and an overall good sinterability. Pellets were sintered at 1300 and 1500 degrees C for 3 h. The ionic conductivity was measured by electrochemical impedance spectroscopy measurements and a correlation between electrical properties and microstructure was revealed. The promising conductivity values showed that the synthesized powders are suitable for intermediate temperature solid oxide fuel cells (IT-SOFCs) applications. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：149 / 155

页数：7

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