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
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Surface studies of hydroxylated multi-wall carbon nanotubes
چکیده انگلیسی
► The surface oxygen levels of MWCNTs have been increased from 4.3 to 22.3 at.% using the Fenton hydroxylation reaction. ► No significant structural disruption to the MWCNTs is detected but their surface chemical properties are significantly improved. ► The hydroxylated materials have an enthalpy of immersion in water of −193 mJ m−2, this gives enhanced water wettability and dispersion. ► Water vapour adsorption, which occurs by hydrogen bonding at polar surface oxygen groups, is also increased. ► 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
نویسندگان
, , , , , , , ,