Characteristics of La-modified Ni-Al2O3 and Ni-SiO2 catalysts for COx-free hydrogen production by catalytic decomposition of methane

Anjaneyulu, C, Velisoju, V, Bhargava, S and Venugopal, A 2013, 'Characteristics of La-modified Ni-Al2O3 and Ni-SiO2 catalysts for COx-free hydrogen production by catalytic decomposition of methane', Journal of Energy Chemistry, vol. 22, no. 6, pp. 853-860.


Document type: Journal Article
Collection: Journal Articles

Title Characteristics of La-modified Ni-Al2O3 and Ni-SiO2 catalysts for COx-free hydrogen production by catalytic decomposition of methane
Author(s) Anjaneyulu, C
Velisoju, V
Bhargava, S
Venugopal, A
Year 2013
Journal name Journal of Energy Chemistry
Volume number 22
Issue number 6
Start page 853
End page 860
Total pages 8
Publisher Elsevier
Abstract Hydrotalcite precursors of La modified Ni-Al2O3 and Ni-SiO2 catalysts prepared by co-precipitation method and the catalytic activities were examined for the production of COx-free H2 by CH4 decomposition. Physico-chemical characteristics of fresh, reduced and used catalysts were evaluated by XRD, TPR and O2 pulse chemisorptions, TEM and BET-SA techniques. XRD studies showed phases due to hydrotalcite-like precursors in oven dried form produced dispersed NiO species upon calcination in static air above 450 ◦ C. Raman spectra of deactivated samples revealed the presence of both ordered and disordered forms of carbon. Ni-La-Al2O3 catalyst with a mole ratio of Ni : La : Al = 2 : 0.1 : 0.9 exhibited tremendously high longevity with a hydrogen production rate of 1300 molH2 ·mol −1 Ni . A direct relationship between Ni metal surface area and hydrogen yields was established.
Keyword(s) CH4 decomposition
Ni-La-Al hydrotalcite
Ni metal surface area
COx-free H2
DOI - identifier 10.1016/S2095-4956(14)60264-3
Copyright notice Copyright © 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. All rights reserved.
ISSN 2095-4956
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 9 times in Scopus Article | Citations
Altmetric details:
Access Statistics: 89 Abstract Views  -  Detailed Statistics
Created: Thu, 15 Jan 2015, 13:42:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us