Activated Carbon Bio-xerogels as Electrodes for Super Capacitors Applications

Zulamita Zapata-Benabithe, Giovanna Diossa, Chris D. Castro, Germán Quintana

    Resultado de la investigación: Contribución a una revistaArtículo de la conferenciarevisión exhaustiva

    20 Citas (Scopus)

    Resumen

    The objectives of this work are to evaluate the use of the lignin as precursor of carbon xerogels and to determinate the effect of porosity and surface functionalities on the electrochemical capacitance of the activated carbon bio-xerogels. Lignin replaced the resorcinol at a mass fraction between 0 and 0.086 (wt%). The organic carbon xerogels are H3PO4-activated at H3PO4/carbon ratio of 1/1 at 450°C to increase pore volume and surface area. Gravimetric capacitance values at 0.125 A/g, in a three-cell configuration, ranged from 138 to 234 F/g. Sample with a 0.086 content of lignin showed the best electrochemical behavior, which was associated with the high BET surface area (1243 m2/g), high volume (W0(N2)= 0.518 cm3/g) and width micropores (L0(N2)= 1.43 nm) and to the presence of pseudo faradic effects.

    Idioma originalInglés
    Páginas (desde-hasta)18-24
    Número de páginas7
    PublicaciónProcedia Engineering
    Volumen148
    DOI
    EstadoPublicada - 2016
    Evento4th International Conference on Process Engineering and Advanced Materials, ICPEAM 2016 - Kuala Lumpur, Malasia
    Duración: 15 ago. 201617 ago. 2016

    Nota bibliográfica

    Publisher Copyright:
    © 2016 The Authors. Published by Elsevier Ltd.

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