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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/31370
Title: Discriminating the carboxylic groups from the total acidic sites in oxidized multi-wall carbon nanotubes by means of acid–base titration
Authors: González-Guerrero, Ana Belén; Mendoza Gómez, Ernest; Pellicer, Eva; Alsina, Francesc; Fernández Sánchez, César; Lechuga, Laura M.
Issue Date: 10-Sep-2008
Publisher: Elsevier
Citation: Chemical Physics Letters 462(4-6): 256-259 (2008)
Abstract: This work reports on the quantitative determination of the carboxylic groups created upon HNO3 treatment at multi-wall carbon nanotube (MWCNT) surface. To this purpose, MWCNTs have been oxidized by refluxing in acid for different periods of time (from 1 h to 12 h). The main goal of the present study comprises the development of a simple analytical methodology based on Boehm’s titration that enables the rapid estimation of the total carboxylic groups and their discrimination from the total oxidized sites created at MWCNT surface as a result of the acid treatment. The trends observed are correlated with Raman spectroscopy analyses.
Description: 4 páginas, 4 figuras.
Publisher version (URL): http://dx.doi.org/10.1016/j.cplett.2008.07.071
URI: http://hdl.handle.net/10261/31370
DOI: 10.1016/j.cplett.2008.07.071
ISSN: 0009-2614
Appears in Collections:(IMB-CNM) Artículos
(CIN2) Artículos
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