CO methanation over supported Mo catalysts in the presence of H2S

The effect of various Mo catalyst supports, i.e., γ-Al2O3, SiO2, SiO2–Al2O3, ZrO2, yttria-stabilized zirconia (YSZ), CeO2, and TiO2, on CO hydrogenation in the presence of H2S was examined. At 5wt.% Mo loading, Mo/ZrO2 was determined to be the most active catalyst for this reaction; its activity was...

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Bibliographic Details
Published in:Catalysis communications 2013-05, Vol.35, p.68-71
Main Authors: Kim, Myoung Yeob, Ha, Seung Bong, Koh, Dong Jun, Byun, Changdae, Park, Eun Duck
Format: Article
Language:English
Subjects:
CO hydrogenation
Methanation
Molybdenum
MoS2
Support
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Summary:The effect of various Mo catalyst supports, i.e., γ-Al2O3, SiO2, SiO2–Al2O3, ZrO2, yttria-stabilized zirconia (YSZ), CeO2, and TiO2, on CO hydrogenation in the presence of H2S was examined. At 5wt.% Mo loading, Mo/ZrO2 was determined to be the most active catalyst for this reaction; its activity was dependent on the number of active sites, as determined via NO chemisorption. Raman spectroscopy revealed that MoO3 transforms into MoS2 during the reaction. [Display omitted] ► CO hydrogenation over supported Mo catalysts was examined in the presence of H2S. ► Mo/ZrO2 showed the highest activity among tested supported Mo catalysts. ► The catalytic activity was proportional to the amount of chemisorbed NO. ► MoO3 was transformed into MoS2 during the reaction.
ISSN:1566-7367
1873-3905
DOI:10.1016/j.catcom.2013.02.004