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research-article

Quantitative measurement of functional groups on nanocarbon allotropes surface by Boehm titration

[+] Author and Article Information
Marlen Hernandez-Ortiz

Unidad Académica de Economía, Universidad Autónoma de Zacatecas (UAZ), Av. Preparatoria S/N Col. Hidráulica; C.P. 98068 Zacatecas, Zac. México
mar_h2o@hotmail.com

D Lozano-López

Unidad Académica de Ciencias Químicas Campus Siglo XXI, UAZ, Km 6 Carretera Zacatecas-Guadalajara Ejido la Escondida 98160 Zacatecas, Zac. México
jdlozanolopez@gmail.com

Sergio Duron

Unidad Académica de Ciencias Químicas Campus Siglo XXI, UAZ, Km 6 Carretera Zacatecas-Guadalajara Ejido la Escondida 98160 Zacatecas, Zac. México
serduro@yahoo.com

M Galván-Valenci

Unidad Académica de Ciencias Químicas Campus Siglo XXI, UAZ, Km 6 Carretera Zacatecas-Guadalajara Ejido la Escondida 98160 Zacatecas, Zac. México
gavm001144@uaz.edu.mx

Yoxkin Estevez-Martínez

Departamento de Ingeniería Electrónica, Instituto Tecnológico Superior de Acatlán de Osorio, Carretera Acatlán-San Juan Ixcaquixtla km 5.5, Acatlán de Osorio, Puebla, México
yoxkin@hotmail.com

Hector Duran-Munoz

Carrera de Ingeniería Industrial. Universidad Politécnica de Zacatecas (UPZ), Plan de Pardillo Sn, Parque Industrial, 99059, Fresnillo, Zac. México
hectorduranm@hotmail.com

José Carrera-Escobedo

Carrera de Ingeniería Industrial. Universidad Politécnica de Zacatecas (UPZ), Plan de Pardillo Sn, Parque Industrial, 99059, Fresnillo, Zac. México
jcarrera@upz.edu.mx

Omar Guirette-Barbosa

Carrera de Ingeniería Industrial. Universidad Politécnica de Zacatecas (UPZ), Plan de Pardillo Sn, Parque Industrial, 99059, Fresnillo, Zac. México
omarguirette@upz.edu.mx

Imelda Ortiz-Medina

Unidad Académica de Economía, Universidad Autónoma de Zacatecas (UAZ), Av. Preparatoria S/N Col. Hidráulica; C.P. 98068 Zacatecas, Zac. México
iortizmedina@yahoo.com

Leticia Ramírez-Hernández

Unidad Académica de Matemáticas, UAZ, Czda. Solidaridad y Paseo La Bufa S/N, 98060 Zacatecas, Zac. México
lramirez@uaz.edu.mx

Victor Castaño

Departamento de Ingeniería Molecular de Materiales del Centro de Física Aplicada y Tecnología Avanzada Campus Juriquilla, Universidad Nacional Autónoma de México, Boulevard Juriquilla No. 3001, Querétaro, Qro., México
victor.m.castano@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4043419 History: Received July 17, 2018; Revised March 29, 2019

Abstract

Various nanocarbons (NCs) were used to study their surface groups under standardized Bohem titration, including: Multi-Walled Carbon Nanotube (CNT), Graphene (G), Vulcan Carbon (VC) and Nanodiamond (ND). Endpoint-measured titration using second derivative method to quantify carboxylic, lactonic and phenolic groups created on treated carbon surfaces shows a high precision comparable to other recent reports and with errors of 1 order of magnitude lower. The results exhibit major concentration of carboxyl group increased after the NCs were oxidized compared to the amount of other functional groups like phenols and lactonic groups. It is important highlight, the concentration ratio of carboxyl group with VC:VC-O was showed at 1:77, exhibited a major result regarding other NCs which exhibited ratios of 1:4.5, 1:1.4 and 1:2.5 for ND:ND-O, CNT:CNT-O and G:G-O respectively. It is concluded that VC is a NC that competes and excels in its capacity of oxidation with respect to the popular NCs as CNT, G and ND.

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