Hydrogen production by auto-thermal reforming of ethanol over nickel catalyst supported on metal oxide-stabilized zirconia

Metal oxide-stabilized mesoporous zirconia supports (M–ZrO 2) with different metal oxide stabilizer (M = Zr, Y, La, Ca, and Mg) were prepared by a templating sol–gel method. 20 wt% Ni catalysts supported on M–ZrO 2 (M = Zr, Y, La, Ca, and Mg) were then prepared by an incipient wetness impregnation m...

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Bibliographic Details
Published in:International journal of hydrogen energy 2010-04, Vol.35 (8), p.3490-3498
Main Authors: Youn, Min Hye, Seo, Jeong Gil, Song, In Kyu
Format: Article
Language:English
Subjects:
Alternative fuels. Production and utilization
Applied sciences
Auto-thermal reforming
Catalysis
Catalysts
Energy
Ethanol
Ethyl alcohol
Exact sciences and technology
Fuels
Hydrogen
Hydrogen production
Magnesium
Metal oxide-stabilized mesoporous zirconia
Nickel
Nickel catalyst
Yttria stabilized zirconia
Zirconium
Zirconium dioxide
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Summary:Metal oxide-stabilized mesoporous zirconia supports (M–ZrO 2) with different metal oxide stabilizer (M = Zr, Y, La, Ca, and Mg) were prepared by a templating sol–gel method. 20 wt% Ni catalysts supported on M–ZrO 2 (M = Zr, Y, La, Ca, and Mg) were then prepared by an incipient wetness impregnation method for use in hydrogen production by auto-thermal reforming of ethanol. The effect of metal oxide stabilizer (M = Zr, Y, La, Ca, and Mg) on the catalytic performance of supported nickel catalysts was investigated. Ni/M–ZrO 2 (M = Y, La, Ca, and Mg) catalysts exhibited a higher catalytic performance than Ni/Zr–ZrO 2, because surface oxygen vacancy of M–ZrO 2 (M = Y, La, Ca, and Mg) and reducibility of Ni/M–ZrO 2 (M = Y, La, Ca, and Mg) were enhanced by the addition of lower valent metal cation. Hydrogen yield over Ni/M–ZrO 2 (M = Zr, Y, La, Ca, and Mg) catalyst was monotonically increased with increasing both surface oxygen vacancy of M–ZrO 2 support and reducibility of Ni/M–ZrO 2 catalyst. Among the catalysts tested, Ni catalyst supported on yttria-stabilized mesoporous zirconia (Ni/Y–ZrO 2) showed the best catalytic performance.
ISSN:0360-3199
1879-3487
DOI:10.1016/j.ijhydene.2010.01.121