Effect of oxidation on the Al-foam reinforced matrix for molten carbonate fuel cells

Title
Effect of oxidation on the Al-foam reinforced matrix for molten carbonate fuel cells
Authors
윤성필장성철함형철배재관김현우강민구최헌진
Keywords
MCFC matrix; Aluminum foam; Aluminum oxidation; Matrix reinforcement; Electrolyte wettability
Issue Date
2019-08
Publisher
International journal of hydrogen energy
Citation
VOL 44, NO 39-22217
Abstract
In this study, Al-foam as a support material is used to reinforce the mechanical strength of the matrix. The use of an Al-foam supported matrix improves mechanical strength but has lower cell performance than using a conventional matrix. The main reasons for the low performance of the cell using the Al-foam supported matrix are short circuit due to leakage current through the Al-foam support and low electrolyte retention capability because of low wettability of aluminum to the liquid electrolytes. To solve these problems, we have developed a process to oxidize the surface of Al-foam reinforced matrix. By observing the unit cell performances, electrochemical analyses and morphological changes according to various oxide thicknesses of the Al-foam support, we have confirmed the optimal oxidation conditions for the Al-foam reinforced matrix. As a result, it was confirmed that the use of an oxidized Al-foam reinforced matrix of about 30 vol% can achieve a cell performance of more than 0.8 V under the current load of 150 mA/cm2 and improve long-term stability.
URI
http://pubs.kist.re.kr/handle/201004/69937
ISSN
0360-3199
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE