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Energy storage in carbon materials synthesized from fir bark modified with graphite and zinc chlorine

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The purpose of this study is to investigate the synthesis process of composite materials based on fir bark for thermochemical transformation and to determine the influence of additives such as zinc chloride, natural graphite of various origins on the structural and electrochemical characteristics of the carbonized products. Modification of fir bark sawdust with amorphous and/or crystalline graphite and zinc chloride allowed for the synthesis of products with a specific surface area of up to 780 m2/g and an apparent specific electrical capacity up to 540 F/g. It was revealed that carbonization of samples containing zinc chloride leads to the formation of porous carbon/zinc oxide composites. The solid residue obtained from the mixture of three components (fir bark, crystalline graphite, and zinc chloride) has the highest apparent specific electrical capacity. It is assumed that the combination of the structures of amorphous, crystalline carbon, and zinc oxide promotes the diffusion of electrolyte and the accumulation of electric charge in carbon composite.

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Acknowledgements

This work was carried out as part of the state assignment of the Institute of Chemistry and Chemical Technology SB RAS (project 121031500180-8) using the equipment of the Krasnoyarsk Regional Center for Collective Use of the Federal Research Center of the Siberian Branch of the Russian Academy of Sciences.

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Correspondence to S. I. Tsyganova.

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Tsyganova, S.I., Bondarenko, G.N. & Fetisova, O.Y. Energy storage in carbon materials synthesized from fir bark modified with graphite and zinc chlorine. Wood Sci Technol 55, 1123–1134 (2021). https://doi.org/10.1007/s00226-021-01298-2

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  • DOI: https://doi.org/10.1007/s00226-021-01298-2

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