Nano-structuring of solid oxide fuel cells cathodes

被引：30
|
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
收藏
页码：123 / 131
页数：9
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