Influence of surface functionalization via chemical oxidation on the properties of carbon nanotubes

Chen, Jiuling, Chen, Qinghai and Ma, Qing (2012) Influence of surface functionalization via chemical oxidation on the properties of carbon nanotubes. Journal of Colloid and Interface Science, 370 1: 32-38. doi:10.1016/j.jcis.2011.12.073


Author Chen, Jiuling
Chen, Qinghai
Ma, Qing
Title Influence of surface functionalization via chemical oxidation on the properties of carbon nanotubes
Journal name Journal of Colloid and Interface Science   Check publisher's open access policy
ISSN 0021-9797
1095-7103
Publication date 2012-03
Sub-type Article (original research)
DOI 10.1016/j.jcis.2011.12.073
Volume 370
Issue 1
Start page 32
End page 38
Total pages 7
Place of publication Maryland Heights MO, United States
Publisher Academic Press
Collection year 2013
Language eng
Formatted abstract
The surface of carbon nanotubes (CNTs) was functionalized in different chemical oxidants, hydrogen peroxide, mixed concentrated HNO3/H2SO4 and acidic KMnO4 solution. The influences on the properties of CNTs were systematically investigated, such as the structure, the kinds and the contents of the formed surface oxygen-containing functional groups, the pHPZC values and the surface hydrophilicity using XRD, HREM, FTIR and chemical titration. The results show that the kinds and the contents of the surface oxygen-containing groups are dependent on the functionalization methods. The formation of the oxygen-containing groups can decrease pHPZC values and improve surface hydrophilicity of CNTs. The dispersion of the supported Pd–Pt particles on the functionalized CNTs and their catalytic activity in the profile reaction of naphthalene hydrogenation to tetralin are both promoted due to the presence of these oxygen-containing groups.
Keyword Carbon nanotubes
Surface functionalization
Oxygen-containing functional groups
Chemical oxidization
Surface hydrophilicity
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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