TY - JOUR
T1 - Discriminating the carboxylic groups from the total acidic sites in oxidized multi-wall carbon nanotubes by means of acid-base titration
AU - González-Guerrero, Ana Belén
AU - Mendoza, Ernest
AU - Pellicer, Eva
AU - Alsina, Francesc
AU - Fernández-Sánchez, César
AU - Lechuga, Laura M.
PY - 2008/9/10
Y1 - 2008/9/10
N2 - 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. © 2008 Elsevier B.V. All rights reserved.
AB - 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. © 2008 Elsevier B.V. All rights reserved.
U2 - https://doi.org/10.1016/j.cplett.2008.07.071
DO - https://doi.org/10.1016/j.cplett.2008.07.071
M3 - Article
SN - 0009-2614
VL - 462
SP - 256
EP - 259
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -