Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.ijhydene.2011.03.138
Title: Synthesis, characterization and catalytic performances of Ce-SBA-15 supported nickel catalysts for methane dry reforming to hydrogen and syngas
Authors: Wang, N.
Chu, W.
Zhang, T.
Zhao, X.S. 
Keywords: Cerium-incorporated SBA-15
High catalytic performance
Hydrogen production
Methane dry reforming
Nano nickel catalyst
Issue Date: Jan-2012
Source: Wang, N., Chu, W., Zhang, T., Zhao, X.S. (2012-01). Synthesis, characterization and catalytic performances of Ce-SBA-15 supported nickel catalysts for methane dry reforming to hydrogen and syngas. International Journal of Hydrogen Energy 37 (1) : 19-30. ScholarBank@NUS Repository. https://doi.org/10.1016/j.ijhydene.2011.03.138
Abstract: A series of Ce-incorporated SBA-15 mesoporous materials were synthesized through direct hydrothermal synthesis method and further impregnated with 12 wt.% Ni. The samples were characterized by ICP-AES, XRD, N 2 physisorption, XPS, TPR, H 2 chemisorption, TGA, temperature- programmed hydrogenation (TPH) and TEM measurements. The low-angle XRD and N 2 physisorption results showed the Ce successfully incorporated into the framework of SBA-15. The catalytic properties of these catalysts were investigated in methane reforming with CO 2. The Ce/Si molar ratio had a significant influence on the catalytic performance. The highest catalytic activity and long-term stability were obtained over the Ni/Ce-SBA-15 (Ce/Si = 0.04) sample. The improved catalytic behavior could be attributed to the cerium impact in the framework of SBA-15, where cerium promoted the dispersion of nano-sized Ni species and inhibited the carbon formation. In comparison with the effect of CeO 2 crystallites in SBA-15, cerium in the framework of SBA-15 promoted the formation of the nickel metallic particles with smaller size. The XRD and TGA results exhibited that carbon deposition was responsible for activity loss of Ni/SBA-15 and Ni/Ce-SBA-15 (Ce/Si = 0.06) catalysts. TEM results showed that the hexagonal mesopores of SBA-15 were still kept intact after reaction and the pore walls of SBA-15 prevented the aggregation of nickel. © 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
Source Title: International Journal of Hydrogen Energy
URI: http://scholarbank.nus.edu.sg/handle/10635/90287
ISSN: 03603199
DOI: 10.1016/j.ijhydene.2011.03.138
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

143
checked on Mar 21, 2018

WEB OF SCIENCETM
Citations

131
checked on Mar 21, 2018

Page view(s)

38
checked on Mar 11, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.