Please use this identifier to cite or link to this item:
|Title:||Methane reforming with carbon dioxide over a Ni/ZiO2–SiO2 catalyst : influence of pretreatment gas atmospheres||Authors:||Liu, Dapeng
|Issue Date:||2012||Source:||Liu, 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.||Series/Report no.:||International journal of hydrogen energy||Abstract:||Carbon 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.||URI:||https://hdl.handle.net/10356/99637
|ISSN:||0360-3199||DOI:||http://dx.doi.org/10.1016/j.ijhydene.2012.03.158||Rights:||© 2012 Hydrogen Energy Publications, LLC.||metadata.item.grantfulltext:||none||metadata.item.fulltext:||No Fulltext|
|Appears in Collections:||SCBE Journal Articles|
checked on Dec 24, 2019
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.