Artículo

Ramos, M.E.; Bonelli, P.R.; Blacher, S.; Ribeiro Carrott, M.M.L.; Carrott, P.J.M.; Cukierman, A.L. "Effect of the activating agent on physico-chemical and electrical properties of activated carbon cloths developed from a novel cellulosic precursor" (2011) Colloids and Surfaces A: Physicochemical and Engineering Aspects. 378(1-3):87-93
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Abstract:

Different chemical reagents (phosphoric acid, boric acid, ammonium citrate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, disodium hydrogen phosphate and trisodium phosphate) were employed to develop activated carbon cloths (ACC) by chemical activation of a lyocell precursor, in an attempt to explore their effect on main physico-chemical characteristics and electrical behaviour of the resulting ACC. The activating agent markedly influenced yield, elemental composition, and textural properties of the ACC. The ACC obtained with phosphoric and boric acids were essentially microporous, whereas those developed with the other reagents presented mesoporosity development. Phosphoric acid-derived samples showed the highest specific surface area (976m2/g). The results also highlight the relevance of correcting the external surface adsorption in order to obtain reliable estimates of micropore volume. All the ACC were electrically conductive, their resistivity being also strongly dependent on the nature of the activating agent. The electrical resistivity of the ACC obtained with all the phosphorous compounds was successfully correlated with their C/H ratio and micropore volume. © 2011 Elsevier B.V.

Registro:

Documento: Artículo
Título:Effect of the activating agent on physico-chemical and electrical properties of activated carbon cloths developed from a novel cellulosic precursor
Autor:Ramos, M.E.; Bonelli, P.R.; Blacher, S.; Ribeiro Carrott, M.M.L.; Carrott, P.J.M.; Cukierman, A.L.
Filiación:Programa de Investigacion y Desarrollo de Fuentes Alternativas de Materias Primas y Energia-PINMATE, Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Guiraldes 2620, Ciudad Universitaria (C1428BGA), Buenos Aires, Argentina
Cátedra de Farmacotecnia II, Departamento de Tecnología Farmacéutica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junín 956 (C1113AAD), Buenos Aires, Argentina
Department of Chemical Engineering, University of Liège, B6a, Allée du 6 août 3, B-40000 Liège, Belgium
Centro de Química de Évora, Departamento de Química, Colégio Luís António Verney, Universidade de Évora, Rua Romão Ramalho, 59, 7000-671 Évora, Portugal
Palabras clave:Activated carbon cloths; Activating agent; Chemical activation; Electrical properties; Porosity development; Activated carbon; Adsorption; Ammonium compounds; Behavioral research; Boride coatings; Electric conductivity; Inorganic acids; Microporosity; Phosphoric acid; Phosphorus; Potassium; Sodium; Activated carbon cloth; Activating agent; Activating agents; Ammonium citrate; Boric acids; Chemical reagents; Di-sodium hydrogen phosphate; Dihydrogen phosphate; Electrical property; Electrical resistivity; Electrically conductive; Elemental compositions; External surfaces; Lyocells; Mesoporosity; Micropore volumes; Microporous; Physico-chemicals; Physicochemical characteristics; Porosity development; Potassium dihydrogen phosphate; Reliable estimates; Textural properties; Trisodium phosphate; Chemical activation; activated carbon; boric acid; cellulose; disodium hydrogen phosphate; phosphoric acid; potassium dihydrogen phosphate; sodium dihydrogen phosphate; adsorption; article; electric conductivity; electrical parameters; priority journal; surface property
Año:2011
Volumen:378
Número:1-3
Página de inicio:87
Página de fin:93
DOI: http://dx.doi.org/10.1016/j.colsurfa.2011.02.005
Título revista:Colloids and Surfaces A: Physicochemical and Engineering Aspects
Título revista abreviado:Colloids Surf. A Physicochem. Eng. Asp.
ISSN:09277757
CODEN:CPEAE
CAS:activated carbon, 64365-11-3, 82228-96-4; boric acid, 10043-35-3, 11113-50-1, 11129-12-7, 14213-97-9; cellulose, 61991-22-8, 68073-05-2, 9004-34-6; disodium hydrogen phosphate, 7558-79-4; phosphoric acid, 7664-38-2; potassium dihydrogen phosphate, 7778-77-0; sodium dihydrogen phosphate, 7558-80-7, 7632-05-5
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09277757_v378_n1-3_p87_Ramos

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Citas:

---------- APA ----------
Ramos, M.E., Bonelli, P.R., Blacher, S., Ribeiro Carrott, M.M.L., Carrott, P.J.M. & Cukierman, A.L. (2011) . Effect of the activating agent on physico-chemical and electrical properties of activated carbon cloths developed from a novel cellulosic precursor. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 378(1-3), 87-93.
http://dx.doi.org/10.1016/j.colsurfa.2011.02.005
---------- CHICAGO ----------
Ramos, M.E., Bonelli, P.R., Blacher, S., Ribeiro Carrott, M.M.L., Carrott, P.J.M., Cukierman, A.L. "Effect of the activating agent on physico-chemical and electrical properties of activated carbon cloths developed from a novel cellulosic precursor" . Colloids and Surfaces A: Physicochemical and Engineering Aspects 378, no. 1-3 (2011) : 87-93.
http://dx.doi.org/10.1016/j.colsurfa.2011.02.005
---------- MLA ----------
Ramos, M.E., Bonelli, P.R., Blacher, S., Ribeiro Carrott, M.M.L., Carrott, P.J.M., Cukierman, A.L. "Effect of the activating agent on physico-chemical and electrical properties of activated carbon cloths developed from a novel cellulosic precursor" . Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 378, no. 1-3, 2011, pp. 87-93.
http://dx.doi.org/10.1016/j.colsurfa.2011.02.005
---------- VANCOUVER ----------
Ramos, M.E., Bonelli, P.R., Blacher, S., Ribeiro Carrott, M.M.L., Carrott, P.J.M., Cukierman, A.L. Effect of the activating agent on physico-chemical and electrical properties of activated carbon cloths developed from a novel cellulosic precursor. Colloids Surf. A Physicochem. Eng. Asp. 2011;378(1-3):87-93.
http://dx.doi.org/10.1016/j.colsurfa.2011.02.005