A chemically stable electrolyte with a novel sandwiched structure for proton-conducting solid oxide fuel cells (SOFCs)

被引：26

作者：

Bi, Lei ^{[1
]}

Traversa, Enrico ^{[1
]}

机构：

[1] King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Thuwal 239556900, Saudi Arabia

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2013年 / 36卷

关键词：

BaCeO3-BaZrO3; Chemical stability; Proton conductor; Sandwiched electrolyte; SOFC; DOPED BARIUM ZIRCONATE; ELECTROCHEMICAL PROPERTIES; THIN-FILMS; IT-SOFCS; PERFORMANCE; STABILITY; FABRICATION;

D O I：

10.1016/j.elecom.2013.09.011

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A chemically stable electrolyte structure was developed for proton-conducting SOFCs by using two layers of stable BaZr0.7Pr0.1Y0.2O3-delta to sandwich a highly-conductive but unstable BaCe0.8Y0.2O3-delta electrolyte layer. The sandwiched electrolyte structure showed good chemical stability in both CO2 and H2O atmosphere, indicating that the BZPY layers effectively protect the inner BCY electrolyte, while the BCY electrolyte alone decomposed completely under the same conditions. Fuel cell prototypes fabricated with the sandwiched electrolyte achieved a relatively high performance of 185 mW cm(-2) at 700 degrees C, with a high electrolyte film conductivity of 4 x 10(-3) S cm(-1) at 600 degrees C. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：42 / 45

页数：4

共 24 条

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Bi, Lei ;

Zhang, Shangquan ;

Fang, Shumin ;

Tao, Zetian ;

Peng, Ranran ;

Liu, Wei .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (10) :1598-1601

[2] Effect of anode functional layer on the performance of proton-conducting solid oxide fuel cells (SOFCs) [J].

Bi, Lei ;

Fabbri, Emiliana ;

Traversa, Enrico .

ELECTROCHEMISTRY COMMUNICATIONS, 2012, 16 (01) :37-40

[3] Sinteractivity, proton conductivity and chemical stability of BaZr0.7In0.3O3-δ for solid oxide fuel cells (SOFCs) [J].

Bi, Lei ;

Fabbri, Emiliana ;

Sun, Ziqi ;

Traversa, Enrico .

SOLID STATE IONICS, 2011, 196 (01) :59-64

[4] BaZr0.8Y0.2O3-δ-NiO Composite Anodic Powders for Proton-Conducting SOFCs Prepared by a Combustion Method [J].

Bi, Lei ;

Fabbri, Emiliana ;

Sun, Ziqi ;

Traversa, Enrico .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (07) :B797-B803

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Bi, Lei ;

Fabbri, Emiliana ;

Sun, Ziqi ;

Traversa, Enrico .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (04) :1352-1357

[6] Tailoring the chemical stability of Ba(Ce0.8-xZrx)Y0.2O3-δ protonic conductors for Intermediate Temperature Solid Oxide Fuel Cells (IT-SOFCs) [J].

Fabbri, Emiliana ;

D'Epifanio, Alessandra ;

Di Bartolomeo, Elisabetta ;

Licoccia, Silvia ;

Traversa, Enrico .

SOLID STATE IONICS, 2008, 179 (15-16) :558-564

[7] Towards the Next Generation of Solid Oxide Fuel Cells Operating Below 600 °C with Chemically Stable Proton-Conducting Electrolytes [J].

Fabbri, Emiliana ;

Bi, Lei ;

Pergolesi, Daniele ;

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ADVANCED MATERIALS, 2012, 24 (02) :195-208

[8] High-performance composite cathodes with tailored mixed conductivity for intermediate temperature solid oxide fuel cells using proton conducting electrolytes [J].

Fabbri, Emiliana ;

Bi, Lei ;

Pergolesi, Daniele ;

Traversa, Enrico .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (12) :4984-4993

[9] Chemically Stable Pr and Y Co-Doped Barium Zirconate Electrolytes with High Proton Conductivity for Intermediate-Temperature Solid Oxide Fuel Cells [J].

Fabbri, Emiliana ;

Bi, Lei ;

Tanaka, Hidehiko ;

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ADVANCED FUNCTIONAL MATERIALS, 2011, 21 (01) :158-166

[10] Materials challenges toward proton-conducting oxide fuel cells: a critical review [J].

Fabbri, Emiliana ;

Pergolesi, Daniele ;

Traversa, Enrico .

CHEMICAL SOCIETY REVIEWS, 2010, 39 (11) :4355-4369

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