Artículo
Effect of catalytic graphitization on the electrochemical behavior of wood derived carbons for use in supercapacitors
Autor/es | Gutierrez Pardo, Antonio Anselmo
Ramírez Rico, Joaquín Cabezas Rodríguez, Rafael Martínez Fernández, Julián |
Departamento | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Fecha de publicación | 2015 |
Fecha de depósito | 2017-06-08 |
Publicado en |
|
Resumen | Porous graphitic carbons were successfully obtained from wood precursors through pyrolysis using a transition metal as catalyst. Once the catalyst is removed, the resulting material mimics the microstructure of the wood ... Porous graphitic carbons were successfully obtained from wood precursors through pyrolysis using a transition metal as catalyst. Once the catalyst is removed, the resulting material mimics the microstructure of the wood and presents high surface area, open and interconnected porosity and large pore volume, high crystallinity and good electrical conductivity, making these carbons interesting for electrochemical devices. Carbons obtained were studied as electrodes for supercapacitors in half cell experiments, obtaining high capacitance values in a basic media (up to 133 F g−1 at current densities of 20 mA g−1 and 35 F g−1 at current densities of 1 A g−1). Long-cycling experiments showed excellent stability of the electrodes with no reduction of the initial capacitance values after 1000 cycles in voltammetry |
Cita | Gutierrez Pardo, A.A., Ramírez Rico, J., Cabezas Rodríguez, R. y Martínez Fernández, J. (2015). Effect of catalytic graphitization on the electrochemical behavior of wood derived carbons for use in supercapacitors. Journal of Power Sources, 278 (15), 18-26. |
Ficheros | Tamaño | Formato | Ver | Descripción |
---|---|---|---|---|
Effect of catalytic graphitiza ... | 1.845Mb | [PDF] | Ver/ | |