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dc.contributor.authorLiu, Dapengen
dc.contributor.authorWang, Yifanen
dc.contributor.authorShi, Damingen
dc.contributor.authorJia, Xinlien
dc.contributor.authorWang, Xinen
dc.contributor.authorBorgna, Armandoen
dc.contributor.authorLau, Raymonden
dc.contributor.authorYang, Yanhuien
dc.identifier.citationLiu, D., Wang, Y., Shi, D., Jia, X., Wang, X., Borgna, A., et al. (2012). Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst: Influence of pretreatment gas atmospheres. International Journal of Hydrogen Energy, 37(13), 10135-10144.en
dc.description.abstractCarbon dioxide reforming of methane to synthesis gas was studied over Ni/ZrO2–SiO2 catalyst under different pretreatment atmospheres. Characterization using powder X-ray diffraction, H2 temperature-programmed reduction, H2 temperature-programmed hydrogenation, TG/DTA, XPS, Raman spectra and transmission electron microscopy techniques revealed that gas atmospheres employed in the catalyst pretreatment have a significant influence on the catalytic performance. The helium-pretreated catalyst was found to be the most suitable catalyst for this application, showing the improved catalytic performance. More specifically, helium pretreatment facilitated the generation of well-distributed active metal sites while the heterogeneity of Ni components upon H2 pretreatment degraded catalytic activity of metal sites considerably. Pretreatment under CO atmosphere resulted in the formation of carbon encapsulated metal species thus causing catalyst deactivation severely. Inefficient reduction under CH4 activation and the presence of a great amount of carbonaceous species, disfavor the production of synthesis gas during the dry reforming.en
dc.relation.ispartofseriesInternational journal of hydrogen energyen
dc.rights© 2012 Hydrogen Energy Publications, LLC.en
dc.titleMethane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheresen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen
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