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Dependence of water vapour adsorption on the polarity of the graphene surfaces of multi-wall carbon nanotubes

Abstract:

The adsorption of water by the graphene surfaces of multi-wall carbon nanotubes (MWCNTs) in either the untreated (4.3 atom% oxygen) or oxidised (22.3 atom% oxygen) surface states has been studied. Different concentrations of surface oxygen groups, which have been directly measured using XPS, give rise to distinctly different shapes of water adsorption isotherms. Those from the untreated materials follow the pressure axis which lends them a Type III character in the BDDT classification. Howeve...

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Publisher copy:
10.1260/0263-6174.28.10.903

Authors


Bradley, RH More by this author
Cassity, K More by this author
Andrews, R More by this author
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Journal:
Adsorption Science and Technology
Volume:
28
Issue:
10
Pages:
903-912
Publication date:
2010-12-01
DOI:
ISSN:
0263-6174
URN:
uuid:17ccea1f-59a2-4d33-8b45-0fbad14a9645
Source identifiers:
179190
Local pid:
pubs:179190
Language:
English

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