2026-06-02T17:41:25Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/162032026-02-03T12:27:21Zcom_10630_2254col_10630_37959

Flexible and low-cost binderless capacitors based on p- and n-containing fibrous activated carbons from denim cloth wastes Rosas-Martínez, Juana María Cordero-Alcántara, Tomás García-Mateos, Francisco José Rodríguez-Mirasol, José Carbón activado Activated carbon cloths have been prepared from denim cloth wastes (DCWs) through chemical activation with H3PO4. The effect of the H3PO4/DCWs impregnation ratio and the carbonization temperature on the porous texture, the chemical composition, the fibers morphology, and the electrochemical performance has been studied. Low H3PO4/DCWs impregnation ratios lead to flexible and microporous activated carbons cloths, whereas more fragile and rigid activated carbon cloths with higher external surface area are produced upon increasing the amount of H3PO4. The increase in the carbonization temperature allows for obtaining a more ordered and conductive carbon structure. The activated carbon prepared at 900 ºC with a H3PO4/DCWs impregnation ratio of 0.5 (w/w) exhibits the best performance as electric double layer capacitor. This electrode shows a specific surface area of 2016 m2 g-1 and the highest registered gravimetric capacitance (227 F g-1). Moreover, its flexibility minimizes the ohmic resistance of the electrode, thus increasing the feasibility of working at higher current densities than the other synthesized electrodes. 2018-07-12T09:40:08Z 2018-07-12T09:40:08Z 2018 2018-07-12 conference output https://hdl.handle.net/10630/16203 eng Carbon2018. The world conference on carbon Madrid, España 01/07/2018 open access