Steam reforming of biomass derived oxygenates to hydrogen: Importance of metal-support boundary

K. Takanabe, Ken-ichi Aika, Kulathu Iyer Seshan, L. Lefferts

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Abstract

Steam reforming of acetic acid over Pt/ZrO2 catalysts was studied as a model reaction of steam reforming of biomass derived oxygenates. Pt/ZrO2 catalysts were very active; however, the catalyst deactivated in time by formation of oligomers which block the active sites for steam reforming. Temperature programmed oxidation of the used catalysts revealed that there are three types of deposits, on Pt, on ZrO2 close to Pt particles, and on ZrO2. The removal of the second type of deposit was essential to regenerate the catalysts. Thus, it was suggested that the Pt-ZrO2 boundary sites were active sites for steam reforming, where both Pt and ZrO2 participates in the reforming, to activate acetic acid and water, respectively. This is an abstract of a paper presented at the 231st ACS National Meeting (Atlanta, GA 3/26-30/2006).

Original languageEnglish
Number of pages1
JournalAbstracts of papers of the American Chemical Society
Volume231
Publication statusPublished - 2006
Event231th ACS National Meeting 2006: Spring 2006 - Atlanta, United States
Duration: 26 Mar 200630 Mar 2006
Conference number: 231

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