Chemical treatment of CNTs in acidic KMnO4 solution and promoting effects on the corresponding Pd-Pt/CNTs catalyst

Chen, Jiuling, Chen, Qinghai, Ma, Qing, Li, Yongdan and Zhu, Zhonghua (2012) Chemical treatment of CNTs in acidic KMnO4 solution and promoting effects on the corresponding Pd-Pt/CNTs catalyst. Journal of Molecular Catalysis A: Chemical, 356 114-120. doi:10.1016/j.molcata.2011.12.032


Author Chen, Jiuling
Chen, Qinghai
Ma, Qing
Li, Yongdan
Zhu, Zhonghua
Title Chemical treatment of CNTs in acidic KMnO4 solution and promoting effects on the corresponding Pd-Pt/CNTs catalyst
Formatted title
Chemical treatment of CNTs in acidic KMnO4 solution and promoting effects on the corresponding Pd-Pt/CNTs catalyst
Journal name Journal of Molecular Catalysis A: Chemical   Check publisher's open access policy
ISSN 1381-1169
1873-314X
Publication date 2012-04
Sub-type Article (original research)
DOI 10.1016/j.molcata.2011.12.032
Volume 356
Start page 114
End page 120
Total pages 7
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2013
Language eng
Formatted abstract
Carbon nanotubes (CNTs) were chemically treated in acidic KMnO4 solution. XRD, nitrogen physisorption, FTIR and chemical titration were used to investigate the influence of the treatment conditions on the surface structure, the bulk structure, the types and the amounts of the formed surface oxygen-containing functional groups of CNTs. The results show that the structure is not changed clearly after treatment and the formation of oxygen-containing groups, e.g., carboxyls, on the CNT surface is dependent on the treatment conditions. Under the present conditions, the concentration of the employed sulphuric acid and the weight ratio of the solid KMnO4 and CNTs have clear influence on the formation of carboxyls, however, by comparison, the influence is slight when the treatment temperature is above 95 °C. With the increasing of the amount of carboxyls, the dispersion of the corresponding Pd–Pt metal particles supported on CNTs is increased and the catalytic activity is promoted in the profile reaction of naphthalene hydrogenation to tetralin.
Keyword Carbon nanotubes
Chemical treatment
Acidic KnMO(4) solution
Carboxyls
Pd-Pt catalyst
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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