Novel Strategies to Fabricate an Anode Supported-Type Protonic Ceramic Fuel Cells (PCFCs)

Title
Novel Strategies to Fabricate an Anode Supported-Type Protonic Ceramic Fuel Cells (PCFCs)
Authors
이종호최성민박수병윤경중손지원제해준김병국이해원
Keywords
PCFC; Anode; Sintering aid
Issue Date
2013-10
Publisher
ECS transactions
Citation
VOL 57, NO 1, 905-910
Abstract
Protonic ceramic fuel cells (PCFCs) based on BaZr1-xYxO3-δ (BZY) have attracted great attention as an alternative for the conventional high temperature fuel cells based on oxygen conducting electrolyte. However, this BZY-based PCFC technology still has many technical problems, especially related with the poor sinterability of BZY electrolytes. In order to overcome this poor sinterability which is a critical limitation in making a thin and dense electrolyte layer for anode-supported PCFCs, we employ the sintering aidassisted enhanced sintering of BaZr0.85Y0.15O3-δ (BZY). We also promote the densification of BZY layer by utilizing the higher sinterability of BaCe0.9Y0.1O3-δ (BCY) that is attached to the top of BZY layer. From proper adjusting of the shrinkage behaviors of both anode substrate and dual electrolyte layer, we could fabricate fairly dense BZY/BCY electrolyte layer with less than 10 micrometer thickness.
URI
http://pubs.kist.re.kr/handle/201004/46004
ISSN
19385862
Appears in Collections:
KIST Publication > Article
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