Integration of Spin-Coated Nanoparticulate-Based La0.6Sr0.4CoO3-δ Cathodes into Micro-Solid Oxide Fuel Cell Membranes

被引：25

作者：

Evans, A. ^{[1
]}

Benel, C. ^{[2
,3
,4
,5
]}

Darbandi, A. J. ^{[2
,3
,4
]}

Hahn, H. ^{[2
,3
,4
]}

Martynczuk, J. ^{[1
]}

Gauckler, L. J. ^{[1
]}

Prestat, M. ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, CH-8093 Zurich, Switzerland

[2] Karlsruhe Inst Technol, Inst Nanotechnol, D-76021 Karlsruhe, Germany

[3] Tech Univ Darmstadt, Joint Res Lab Nanomat, Darmstadt, Germany

[4] Karlsruhe Inst Technol, Darmstadt, Germany

[5] Karlsruhe Inst Technol, Ctr Funct Nanostruct, D-76021 Karlsruhe, Germany

来源：

FUEL CELLS | 2013年 / 13卷 / 03期

基金：

瑞士国家科学基金会;

关键词：

Free-standing Membrane; Lanthanum-Strontium-Cobalt Oxide (LSC); Micro-Solid Oxide Fuel Cell; Nanoparticulate Cathode; Salt-Assisted Spray Pyrolysis; Spin-Coating; PERFORMANCE; STRESS; FILMS;

D O I：

10.1002/fuce.201300020

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

070208 [无线电物理];

摘要：

Thin cathodes for micro-solid oxide fuel cells (micro-SOFCs) are fabricated by spin-coating a suspension of La0.6Sr0.4CoO3- (LSC) nanoparticulates obtained by salt-assisted spray pyrolysis. The resulting 250nm thin LSC layers exhibit a three-dimensional porous microstructure with a grain size of around 45nm and can be integrated onto free-standing 3mol.% yttria-stabilized-zirconia (3YSZ) electrolyte membranes with high survival rates. Weakly buckled micro-SOFC membranes enable a homogeneous distribution of the LSC dispersion on the electrolyte, whereas the steep slopes of strongly buckled membranes do not allow for a perfect LSC coverage. A micro-SOFC membrane consisting of an LSC cathode on a weakly buckled 3YSZ electrolyte and a sputtered Pt anode has an open-circuit voltage of 1.05V and delivers a maximum power density of 12mWcm-2 at 500 degrees C.

引用

页码：441 / 444

页数：4

共 14 条

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Factors governing oxygen reduction in solid oxide fuel cell cathodes [J].