کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5366381 | 1388348 | 2012 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Surface studies of hydroxylated multi-wall carbon nanotubes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
⺠The surface oxygen levels of MWCNTs have been increased from 4.3 to 22.3 at.% using the Fenton hydroxylation reaction. ⺠No significant structural disruption to the MWCNTs is detected but their surface chemical properties are significantly improved. ⺠The hydroxylated materials have an enthalpy of immersion in water of â193 mJ mâ2, this gives enhanced water wettability and dispersion. ⺠Water vapour adsorption, which occurs by hydrogen bonding at polar surface oxygen groups, is also increased. ⺠Using graphitized MWCNTs evidence supporting direct attack at the graphene ring as one possible hydroxylation mechanism is presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 258, Issue 11, 15 March 2012, Pages 4835-4843
Journal: Applied Surface Science - Volume 258, Issue 11, 15 March 2012, Pages 4835-4843
نویسندگان
Robert H. Bradley, Kelby Cassity, Rodney Andrews, Mark Meier, Susan Osbeck, Aurik Andreu, Colin Johnston, Alison Crossley,