Modification of Ni state to promote the stability of Ni-Al2O3 catalyst in methane decomposition to produce hydrogen and carbon nanofibers

Chen, Jiuling, Qiao, Yuanhua and Li, Yongdan (2012) Modification of Ni state to promote the stability of Ni-Al2O3 catalyst in methane decomposition to produce hydrogen and carbon nanofibers. Journal of Solid State Chemistry, 191 107-113. doi:10.1016/j.jssc.2012.03.019


Author Chen, Jiuling
Qiao, Yuanhua
Li, Yongdan
Title Modification of Ni state to promote the stability of Ni-Al2O3 catalyst in methane decomposition to produce hydrogen and carbon nanofibers
Formatted title
Modification of Ni state to promote the stability of Ni-Al2O3 catalyst in methane decomposition to produce hydrogen and carbon nanofibers
Journal name Journal of Solid State Chemistry   Check publisher's open access policy
ISSN 0022-4596
1095-726X
Publication date 2012-07
Sub-type Article (original research)
DOI 10.1016/j.jssc.2012.03.019
Volume 191
Start page 107
End page 113
Total pages 7
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Collection year 2013
Language eng
Formatted abstract
The methodology was illustrated for modifying the state of Ni to promote the stability of the coprecipitated Ni–Al2O3 catalyst via incorporating ZnO and Cu in methane decomposition to produce hydrogen and carbon nanofibers. The influences of the incorporation on the state of Ni were examined with XRD, TPR, XPS and TEM. For the incorporation of ZnO, ZnAl2O4 spinel-like structure could be formed in the interface between ZnO and Al2O3. The interaction between Ni and the ZnAl2O4 structure can promote both the activity and the stability of Ni in methane decomposition. The formation of a Ni–Cu alloy from Ni and the incorporated Cu decreases the activity of Ni, however, promotes the stability pronouncedly.
Keyword Ni-Al2O3 catalyst
Ni state
ZnAl2O4 spinel
Ni-Cu alloy
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
Official 2013 Collection
 
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Created: Mon, 23 Jul 2012, 17:05:53 EST by System User on behalf of School of Chemical Engineering