Activated Carbons Prepared through H3PO4-Assisted Hydrothermal Carbonisation from Biomass Wastes: Porous Texture and Electrochemical Performance
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Título: | Activated Carbons Prepared through H3PO4-Assisted Hydrothermal Carbonisation from Biomass Wastes: Porous Texture and Electrochemical Performance |
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Autor/es: | Quesada-Plata, Fabian | Ruiz-Rosas, Ramiro | Morallon, Emilia | Cazorla-Amorós, Diego |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros | Materiales Carbonosos y Medio Ambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Biomass | Carbon | Hydrothermal treatments | Sustainable chemistry | Supercapacitors |
Área/s de conocimiento: | Química Física | Química Inorgánica |
Fecha de publicación: | dic-2016 |
Editor: | Wiley-VCH Verlag GmbH & Co. KGaA |
Cita bibliográfica: | ChemPlusChem. 2016, 81(12): 1349-1359. doi:10.1002/cplu.201600412 |
Resumen: | Hydrothermal treatment of biomass in the presence of phosphoric acid is proposed for the production of activated carbons (ACs). Interestingly, H3PO4 promotes the fixation of carbon atoms in the solid during hydrothermal treatment, which renders higher preparation yields than those of the conventional impregnation method. Upon carbonisation of the resulting hydrochars at 450 °C, a notable development of porosity is achieved by using a low amount and concentration of phosphoric acid; these conditions are not adequate for conventional activation. The viability of this process for the sustainable production of ACs has been successfully checked in four biomasses of different composition and structures, and ACs of surface areas above 2000 m2 g−1 and tuneable pore size distribution have been obtained. Electrochemical characterisation of ACs prepared at 750 °C in 1 m H2SO4 demonstrates that capacitances of approximately 150 F g−1 with acceptable rate performance can be obtained through this simple method. |
Patrocinador/es: | This study was supported by the Ministry of Economy and Competitiveness (MINECO) of Spain (CTQ2015-66080-R MINECO/FEDER, MAT2013-42007-P, JCI-2012-12664) and Generalitat Valenciana (GRISOLIA/2014/029, PROMETEO/2013/038 and PROMETEOII/2014/010). |
URI: | http://hdl.handle.net/10045/61792 |
ISSN: | 2192-6506 |
DOI: | 10.1002/cplu.201600412 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2016 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1002/cplu.201600412 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas INV - MCMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2016_Quesada_etal_ChemPlusChem_final.pdf | Versión final (acceso restringido) | 1,89 MB | Adobe PDF | Abrir Solicitar una copia |
2016_Quesada_etal_ChemPlusChem_accepted.pdf | Accepted Manuscript (acceso abierto) | 1,75 MB | Adobe PDF | Abrir Vista previa |
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