Nano-structuring of solid oxide fuel cells cathodes

被引：31

作者：

Serra, J. M. ^{[1
]}

Uhlenbruck, S. ^{[1
]}

Meulenberg, W. A. ^{[1
]}

Buchkremer, H. P. ^{[1
]}

Stoever, D. ^{[1
]}

机构：

[1] Forschungszentrum Julich, IWV, Inst Mat & Proc Energy Syst, D-52425 Julich, Germany

来源：

TOPICS IN CATALYSIS | 2006年 / 40卷 / 1-4期

关键词：

SOFC; nanostructuring; electrocatalyst; cathode; LSFC;

D O I：

10.1007/s11244-006-0114-6

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Different approaches are proposed for increasing the overall performance of solid oxide fuel cells (SOFC) by promoting the nano-structuring of perovskitic cathode layers. The formation of pore systems in the nanometer scale will make available a larger surface area (three-phase-boundary) for the electrocatalytic processes occurring on the air electrode. Two different concepts can be pursued for this purpose: (i) synthesis of thermally-stable mesoporous particles and ulterior deposition of them as macroporous films using coating techniques such as screen printing; and (ii) production of nano-structured films of regularly-arranged nano-sized particles of electrocatalytic materials over the dense electrolyte. The first progresses in the synthesis of nano-structured LSFC cathode layers following the first approach are depicted as well as their electrochemical characterization when using them as SOFC cathodes assembled on complete anode-supported (Ni-YSZ/YSZ) fuel cells.

引用

页码：123 / 131

页数：9

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