Cherry stones as precursor of activated carbons for supercapacitors
By M. Olivares-Marín, J. Fernández, M. Lázaro, C. Fernández-González, A. Macías-García, V. Gómez-Serrano, F. Stoeckli, T. Centeno. 2009
197 citations recorded by the source corpus.
Abstract It is shown that cherry stones-wastes can be recycled as activated carbons for electrode material in supercapacitors. KOH-activation of this precursor at 800–900 °C is an efficient process to obtain carbons with large specific surface areas (1100–1300 m2 g−1), average pore sizes around 0.9–1.3 nm, which makes them accessible to electrolyte ions, and conductivities between 1 and 2 S cm−1. These features lead to capacitances at low current density as high as 230 F g−1 in 2 M H2SO4 aqueous electrolyte and 120 F g−1 in the aprotic medium 1 M (C2H5)4NBF4/acetonitrile. Furthermore, high performance is also achieved at high current densities, which means that this type of materials competes well with commercial carbons used at present in supercapacitors.
Subfields: Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Polymers and Plastics
View Paper: https://www.semanticscholar.org/paper/af82154209e79f36c50028fa5d289c3761589e26
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In Electrical and Electronic Engineering
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Citations in the corpus
- Biomass-derived renewable carbon materials for electrochemical energy storage (2017, background): “ious biomass precursors, such as cherry stone [95], fish”
- Capacitance and surface of carbons in supercapacitors (2017, methodology): “Details on the main structural, textural, chemical and electrochemical characteristics of most of them have been previously reported [18, 26-49].”