Energy materials from footwear waste
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F23%3A63575078" target="_blank" >RIV/70883521:28610/23:63575078 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Energy materials from footwear waste
Original language description
In the present research, we have focused on finding the possibility to use waste from shoe manufacturing based on pigskin leather for the preparation of energy materials. Four types of leather carbonization and activation have been carried out: simple carbonization, two-step carbonization/activation, direct activation, and excess activation. A pyrolysis temperature of 800 °C was selected after the preliminary study and potassium hydroxide solution was used for the activation. All products had similar conductivity of the order of tenths to units S cm−1, which approximately corresponds to the conductivity of conducting polymers, such as polypyrrole. The products, however, highly differed in the specific surface area.The properties of the carbonized and activated samples allowed for the preparation of batteries on a semi-operational experimental line. Positive electrodes for Li-ion batteries type CR 2032 were prepared and tested. The charge/discharge capacity of 400 mAh g−1 after 50 charging cycles was reduced by approximately about 20%.The results demonstrate that the carbonized leather waste could contribute to the solution of two major problems: the first, the reuse of harmful chromium–tanned leather waste, and the second, the replacement of some strategic energy materials.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20903 - Bioproducts (products that are manufactured using biological material as feedstock) biomaterials, bioplastics, biofuels, bioderived bulk and fine chemicals, bio-derived novel materials
Result continuities
Project
<a href="/en/project/TK03030157" target="_blank" >TK03030157: Next generation all-solid-state Li-ion batteries</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů