Improved solid oxide fuel cell anodes for the direct utilization of methane using Sn-doped Ni/YSZ catalysts

Hyuk Kan, Sang Hoon Hyun, Yong Gun Shul, Hyunjoo Lee

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

A single solid oxide fuel cell is fabricated using Sn-doped Ni/YSZ as the anode catalyst. A power density of 0.39 W/cm2 was obtained using a Sn-doped Ni/YSZ cell with methane fuel at 800 °C, which is equivalent to that obtained using a Ni/YSZ cell (0.40 W/cm2). Stability tests reveal that the stability of the Sn-doped Ni/YSZ cell is an order of magnitude higher than that of the Ni/YSZ cell. The Sn-doped Ni/YSZ cell operates for 49.0 h, whereas the Ni/YSZ cell stops after 2.3 h. The Ni/YSZ fuel cell is destroyed by cell expansion caused by the rapid accumulation of graphitic coke. In contrast, much less graphitic carbon is deposited on Sn-doped Ni/YSZ, leading to improved stability.

Original languageEnglish
Pages (from-to)180-183
Number of pages4
JournalCatalysis Communications
Volume11
Issue number3
DOIs
Publication statusPublished - 2009 Nov 25

Bibliographical note

Funding Information:
This work was supported by the Seoul R&BD Program ( CS070157 ).

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Process Chemistry and Technology

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