DETERMINATION OF THE SURFACE FUNCTIONALITY OF NANOCARBON ALLOTROPES BY BOEHM TITRATION

Author:

HERNANDEZ-ORTIZ M.1,DURÁN-MUÑOZ H. A.2,LOZANO-LÓPEZ J. D.3,DURÓN S. M.3,GALVÁN-VALENCIA M.3,ESTEVEZ-MARTÍNEZ Y.4,ORTIZ-MEDINA I.1,RAMÍREZ-HERNÁNDEZ L. A.5,CRUZ-DOMÍNGUEZ O.2,CASTAÑO V. M.6

Affiliation:

1. Unidad Académica de Economía, Universidad Autónoma de Zacatecas (UAZ), Av. Preparatoria S/N Col. Hidráulica, C.P. 98068 Zacatecas, Zac. Mexico

2. Carrera de Ingeniería Industrial, Universidad Politécnica de Zacatecas (UPZ), Plan de Pardillo Sn, Parque Industrial, 99059 Fresnillo, Zac. Mexico

3. Unidad Académica de Ciencias, Químicas Campus Siglo XXI, UAZ, Km 6 Carretera Zacatecas-Guadalajara Ejido la Escondida, 98160 Zacatecas, Zac. Mexico

4. Departamento de Ingeniería Electrónica, Instituto Tecnológico Superior de Acatlán de Osorio, Carretera Acatlán-San Juan Ixcaquixtla km 5.5, Acatlán de Osorio, Puebla, Mexico

5. Unidad Académica de Matemáticas, UAZ, Czda. Solidaridad y Paseo La Bufa S/N, 98060 Zacatecas, Zac. Mexico

6. 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., Mexico

Abstract

Critical point (CP) in a titration curve to quantify carboxylic, lactonic, and phenolic groups on multi-walled carbon nanotube (CNT) and Vulcan carbon (VC). Titration technique used was Boehm type and tipping point measurement from titration curve was done by second derivative method. The calculation functional groups on nanocarbons (NCs) presents lowest uncertainty previously published. An order of [Formula: see text]meq/g is the precision of the values obtained, one order of magnitude below reported. Both NCs display a high quantity of carboxylic groups created after being treated with regard to the other functional groups generated, mainly for functionalized Vulcan carbon VC-F.

Publisher

World Scientific Pub Co Pte Lt

Subject

Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics

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