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

Hary Devianto, Zhenlan Li, Sung Pil Yoon, Jonghee Han, SukWoo Nam, Tae Hoon Lim, Ho In Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

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.

Original languageEnglish
JournalCurrent Applied Physics
Volume10
Issue number2 SUPPL.
DOIs
Publication statusPublished - 2010 Mar 1
Externally publishedYes

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Keywords

  • Ethanol
  • MCFC
  • Reforming catalyst
  • Wettability

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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