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Abstract:

Activated carbon cloths (ACCs) from denim fabric were developed by phosphoric acid activation in an inert atmosphere. The effect of acid concentration (5-15 wt %) and final thermal treatment temperature (600-950°C) on yield, chemical characteristics (elemental composition, ash, total acidity), porosity development, morphology, and electrical properties of the resulting ACCs were examined. Noticeable changes in the thermal behavior of the precursor due to acid impregnation were detected from thermogravimetric measurements using comparative samples of raw and acid-treated denim. ACCs properties were dependent on a combined effect of the conditions employed, though the temperature exerted a major influence. The ACCs prepared with 10 wt % acid concentration at 950°C showed maximum BET surface area (1055 m 2/g) and total pore volume (0.53 cm3/g), and well-preserved fibers integrity. Almost all the denim-derived ACCs were electrically conductive, following ohmic behavior. Increasing the final temperature from 600 to 800°C led to a substantial change in electrical conductivity. The ACCs were heated by Joule effect, attaining surface temperatures in the range 300-500 K. Electrical resistivity of the ACCs was found to depend on the extent of porosity development. © 2007 American Chemical Society.

Registro:

Documento: Artículo
Título:Effect of process conditions on physicochemical and electrical characteristics of denim-based activated carbon cloths
Autor:Ramos, M.E.; Gonzalez, J.D.; Bonelli, P.R.; Cukierman, A.L.
Filiación:Programa de Investigation y Desarrollo de Fuentes Alternativas de Materias Primas y Energia-PINMATE, Departamento de Industrias, Ciudad Universitaria, (C1428BGA) Buenos Aires, Argentina
Cátedra de Farmacotecnia II-Tecnología Especial, Departamento de Tecnología Farmacéutica, Universidad de Buenos Aires, Junin 956, (C1113AAD) Buenos Aires, Argentina
Palabras clave:Activated carbon; Concentration (process); Thermogravimetric analysis; Activated carbon cloths (ACC); Joule effect; Porosity development; Fabrics; Activated carbon; Concentration (process); Fabrics; Thermogravimetric analysis; Activated Carbon; Concentration; Forming Fabrics; Thermal Analysis
Año:2007
Volumen:46
Número:4
Página de inicio:1167
Página de fin:1173
DOI: http://dx.doi.org/10.1021/ie060842s
Título revista:Industrial and Engineering Chemistry Research
Título revista abreviado:Ind. Eng. Chem. Res.
ISSN:08885885
CODEN:IECRE
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08885885_v46_n4_p1167_Ramos

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Citas:

---------- APA ----------
Ramos, M.E., Gonzalez, J.D., Bonelli, P.R. & Cukierman, A.L. (2007) . Effect of process conditions on physicochemical and electrical characteristics of denim-based activated carbon cloths. Industrial and Engineering Chemistry Research, 46(4), 1167-1173.
http://dx.doi.org/10.1021/ie060842s
---------- CHICAGO ----------
Ramos, M.E., Gonzalez, J.D., Bonelli, P.R., Cukierman, A.L. "Effect of process conditions on physicochemical and electrical characteristics of denim-based activated carbon cloths" . Industrial and Engineering Chemistry Research 46, no. 4 (2007) : 1167-1173.
http://dx.doi.org/10.1021/ie060842s
---------- MLA ----------
Ramos, M.E., Gonzalez, J.D., Bonelli, P.R., Cukierman, A.L. "Effect of process conditions on physicochemical and electrical characteristics of denim-based activated carbon cloths" . Industrial and Engineering Chemistry Research, vol. 46, no. 4, 2007, pp. 1167-1173.
http://dx.doi.org/10.1021/ie060842s
---------- VANCOUVER ----------
Ramos, M.E., Gonzalez, J.D., Bonelli, P.R., Cukierman, A.L. Effect of process conditions on physicochemical and electrical characteristics of denim-based activated carbon cloths. Ind. Eng. Chem. Res. 2007;46(4):1167-1173.
http://dx.doi.org/10.1021/ie060842s