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Recycling of residues as precursors of carbons for supercapacitors

AutorÁlvarez Centeno, Teresa ; Rubiera González, Fernando ; Stoeckli, F.
Palabras claveApple pulp waste
Cherry stones residues
PET waste
Activated carbon
Fecha de publicaciónnov-2009
ResumenIt is shown that industrial wastes such as apple pulp (generated in the cider production), cherry stones (from the industrial manufacture of Kirsh and jam) and PET (plastic vessels) can be recycled as activated carbons for electrode material in supercapacitors. These precursors allow obtaining carbons with large specific surface areas (up to 1200 m2g-1) and average pore sizes around 0.9-1.3 nm, which makes them accessible to electrolyte ions. These features lead to electrical capacitances at low current density as high as 230 F g-1 in 2M H2SO4 aqueous electrolyte and 120 F g-1 in the aprotic medium 1M (C2H5)4NBF4 / acetonitrile. Furthermore, high performance is also achieved at high current densities, which means that the activated carbons derived from residues compete well with commercial carbons used at present in supercapacitors.
DescripciónEn: 1st Spanish National Conference on Advances in Materials Recycling and Eco – Energy Madrid, 12-13 November 2009.-- Editors: F. A. López, F. Puertas, F. J. Alguacil and A. Guerrero.-- 4 pages, 3 figures, 1 table.
Aparece en las colecciones: (INCAR) Comunicaciones congresos
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