Preparation of Porous Carbons from Petroleum Pitch and Polyaniline by Thermal Treatment for Methane Storage
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http://hdl.handle.net/10045/106588
Títol: | Preparation of Porous Carbons from Petroleum Pitch and Polyaniline by Thermal Treatment for Methane Storage |
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Autors: | Navarro Quirant, Paula | Cuadrado-Collados, Carlos | Romero Anaya, Aroldo José | Silvestre-Albero, Joaquín | Martinez-Escandell, Manuel |
Grups d'investigació o GITE: | Materiales Avanzados |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Paraules clau: | Petroleum residue | Thermal treatment | Porosity | Methane storage | Electrical conductivity |
Àrees de coneixement: | Química Inorgánica |
Data de publicació: | 4-de març-2020 |
Editor: | American Chemical Society |
Citació bibliogràfica: | Industrial & Engineering Chemistry Research. 2020, 59(13): 5775-5785. doi:10.1021/acs.iecr.9b06501 |
Resum: | The methane storage capacity of two series of activated carbons, obtained from a graphitizable (petroleum pitch) and a nongraphitizable precursor (polyaniline), has been evaluated after different thermal treatments. Both samples have been pyrolyzed and subsequently activated with KOH to obtain a highly developed microporous structure. After the synthesis, samples have been heat-treated at different temperatures, between 1000 and 1500 °C, to introduce structural changes that could have an effect on two parameters defining the methane adsorption capacity: the porosity and the density. The physicochemical characterization of the samples has shown that the activation process destroys the pregraphitic structure, with a development of microporosity. However, during the subsequent thermal treatment, the graphitic order can be partially recovered, especially with the graphitizable material, together with a decrease in the micropore volume and an enhancement of the density. The electrical conductivity of the activated carbon obtained from a graphitizable precursor improves much more with an increase in the temperature of the thermal treatment than that of the activated carbon obtained from a nongraphitizable precursor. It is worth highlighting that the high methane adsorption capacities achieved with some of these samples, reaching values as high as 180 V/V. These values are among the highest reported in the literature so far. |
Patrocinadors: | The authors would like to acknowledge financial support from MINECO (MAT2016-80285-p). |
URI: | http://hdl.handle.net/10045/106588 |
ISSN: | 0888-5885 (Print) | 1520-5045 (Online) |
DOI: | 10.1021/acs.iecr.9b06501 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2020 American Chemical Society |
Revisió científica: | si |
Versió de l'editor: | https://doi.org/10.1021/acs.iecr.9b06501 |
Apareix a la col·lecció: | INV - LMA - Artículos de Revistas |
Arxius per aquest ítem:
Arxiu | Descripció | Tamany | Format | |
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Navarro-Quirant_etal_2020_IndEngChemRes_final.pdf | Versión final (acceso restringido) | 5,08 MB | Adobe PDF | Obrir Sol·licitar una còpia |
Navarro-Quirant_etal_2020_IndEngChemRes_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,08 MB | Adobe PDF | Obrir Vista prèvia |
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