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Abstract:

Activated carbon cloths (ACC) were prepared from Tencel®, a novel regenerated cellulose nanofibre fabric, by phosphoric acid activation in an inert atmosphere using different thermal treatment conditions. The effect of the final thermal treatment temperature (663-963 °C) and temperature programme (temperature of isothermal step and heating rate) on yield, elemental composition, porosity development and mechanical strength of the resulting ACC were examined. Nitrogen isotherms at -196 °C, carbon dioxide isotherms at 0 °C, breaking loads and Youngs modulus values were determined for all the samples. Adsorption data were fitted to different models (BET, Dubinin-Radushkevich, αS) to evaluate textural parameters of the ACC. The samples were essentially microporous and presented good physical appearance. Higher treatment temperatures resulted in higher BET surface areas and total pore volumes, also leading to larger micropore widths. The ACC prepared at 963 °C showed maximum BET surface area (1705 m2 g-1) and total pore volume (0.67 cm3 g-1). On the other hand the best mechanical strength was observed at 864 °C after a lower temperature isothermal step. Overall, the results indicated a stronger dependence of surface area, total pore volume, microporosity development and mechanical strength on the final treatment temperature than on the temperature programme. © 2009 Elsevier B.V. All rights reserved.

Registro:

Documento: Artículo
Título:Influence of thermal treatment conditions on porosity development and mechanical properties of activated carbon cloths from a novel nanofibre-made fabric
Autor:Ramos, M.E.; Bonelli, P.R.; Cukierman, A.L.; Ribeiro Carrott, M.M.L.; Carrott, P.J.M.
Filiación:Programa de Investigacion y Desarrollo de Fuentes Alternativas de Materias Primas y Energia-PINMATE, Departamento de Industrias, Facultad de Ciencias Exactas y Naturales, Intendente Guiraldes 2620, Ciudad Universitaria, C1428BGA Buenos Aires, Argentina
Cátedra de Farmacotecnia II-Tecnología Especial, Departamento de Tecnología Farmacéutica, Facultad de Farmacia y Bioquímica, Junín 956, C1113AAD Buenos Aires, Argentina
Centro de Química de Évora, Departamento de Química, Colégio Luís António Verney, Rua Romão Ramalho, 59, 7000-671 Évora, Portugal
Palabras clave:Adsorption; Microporous materials; Microstructure; Surface properties; Activated carbon cloth; Adsorption data; BET surface area; Breaking load; Dubinin-Radushkevich; Elemental compositions; Inert atmospheres; Mechanical strength; Micropore; Microporous; Modulus values; Nanofibre; Nitrogen isotherms; Phosphoric acid activation; Porosity development; Regenerated cellulose; Surface area; Temperature programme; Textural parameters; Thermal treatment; Thermal treatment temperature; Total pore volume; Treatment temperature; Adsorption; Atmospheric temperature; Carbon dioxide; Charcoal; Coal tar; Fabrics; Heat treatment; Isotherms; Mechanical properties; Microporosity; Microporous materials; Microstructure; Nanofibers; Phosphoric acid; Surface properties; Trace analysis; Activated carbon; Adsorption; Carbon; Carbon Dioxide; Charcoal; Coal; Fabric; Heat Treatment; Isotherms; Mechanical Properties; Microstructure; Phosphoric Acid; Porous Materials; Surface Properties; Tar; Temperature
Año:2009
Volumen:116
Número:2-3
Página de inicio:310
Página de fin:314
DOI: http://dx.doi.org/10.1016/j.matchemphys.2009.03.042
Título revista:Materials Chemistry and Physics
Título revista abreviado:Mater Chem Phys
ISSN:02540584
CODEN:MCHPD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02540584_v116_n2-3_p310_Ramos

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Citas:

---------- APA ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L. & Carrott, P.J.M. (2009) . Influence of thermal treatment conditions on porosity development and mechanical properties of activated carbon cloths from a novel nanofibre-made fabric. Materials Chemistry and Physics, 116(2-3), 310-314.
http://dx.doi.org/10.1016/j.matchemphys.2009.03.042
---------- CHICAGO ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L., Carrott, P.J.M. "Influence of thermal treatment conditions on porosity development and mechanical properties of activated carbon cloths from a novel nanofibre-made fabric" . Materials Chemistry and Physics 116, no. 2-3 (2009) : 310-314.
http://dx.doi.org/10.1016/j.matchemphys.2009.03.042
---------- MLA ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L., Carrott, P.J.M. "Influence of thermal treatment conditions on porosity development and mechanical properties of activated carbon cloths from a novel nanofibre-made fabric" . Materials Chemistry and Physics, vol. 116, no. 2-3, 2009, pp. 310-314.
http://dx.doi.org/10.1016/j.matchemphys.2009.03.042
---------- VANCOUVER ----------
Ramos, M.E., Bonelli, P.R., Cukierman, A.L., Ribeiro Carrott, M.M.L., Carrott, P.J.M. Influence of thermal treatment conditions on porosity development and mechanical properties of activated carbon cloths from a novel nanofibre-made fabric. Mater Chem Phys. 2009;116(2-3):310-314.
http://dx.doi.org/10.1016/j.matchemphys.2009.03.042