The effect of electrolyte wettability on reforming catalyst in direct ethanol MCFCs

Title
The effect of electrolyte wettability on reforming catalyst in direct ethanol MCFCs
Authors
데비안또하리이정란윤성필한종희남석우임태훈이호인
Keywords
MCFC; Ethanol; Reforming catalyst; Wettability
Issue Date
2010-03
Publisher
Current applied physics
Citation
VOL 10, NO 2, S26-S28
Abstract
To overcome the poisoning of reforming catalyst contacted with the electrolyte without degradations of performance and long-term stability, we proposed on the development of support which has low wettability to electrolyte, but still keeps high activity on steam reforming of bio-ethanol. To perform the wettability measurement, a couple of supports (MgO and PbO) were pressed to form disc-shaped specimen with relatively low porosity, and subjected to an on-line optical contact angle measurement device at MCFC operating condition. The results of wettability of the supports indicated that PbO showed low wettability to the carbonates melts giving high contact angle. The microstructure of unreacted PbO layer might be contributed to its low wettability. The highest activity was achieved with Ni/MgO, while the lowest wettability was attained with PbO as a support. Ni/1MgO·1PbO seemed to be the most promising candidate for avoiding the reforming catalyst from poisoning.
URI
http://pubs.kist.re.kr/handle/201004/37256
ISSN
1567-1739
Appears in Collections:
KIST Publication > Article
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