Conductivity of carbonized and activated leather waste
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F23%3A10252648" target="_blank" >RIV/61989100:27710/23:10252648 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/23:10474000 RIV/70883521:28610/23:63569339 RIV/60461373:22810/23:43927595
Result on the web
<a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85164340937&origin=resultslist&sort=plf-f&src=s&sid=431fc89c358a93b8c8eeff49b521bdef&sot=b&sdt=b&s=AUTHOR-NAME%28Grycova+B%29&sl=22&sessionSearchId=431fc89c358a93b8c8eeff49b521bdef" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85164340937&origin=resultslist&sort=plf-f&src=s&sid=431fc89c358a93b8c8eeff49b521bdef&sot=b&sdt=b&s=AUTHOR-NAME%28Grycova+B%29&sl=22&sessionSearchId=431fc89c358a93b8c8eeff49b521bdef</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.scp.2023.101172" target="_blank" >10.1016/j.scp.2023.101172</a>
Alternative languages
Result language
angličtina
Original language name
Conductivity of carbonized and activated leather waste
Original language description
The conductivity of chromium-tanned pigskin leather waste carbonized in various manner to nitrogen-containing carbons is reported. Four protocols have been tested: (1) The simple carbonization at 800 oC in inert atmosphere, (2) the carbonization at 500 oC followed by the activation with potassium hydroxide at 800 oC, (3) direct activation with the alkali at 800 oC and (4) the similar activation with potassium hydroxide excess. The fibrous collagen morphology was preserved after the carbonization except for some shrinkage. The yield in the simple carbonization, 26.9 wt%, was reduced to 23.9 wt% for the activated products. Elemental analysis indicated reduced content of organic elements after carbonization, and X-ray fluorescence the composition of growing inorganic part. The chromium content in biochar was close to 12 wt% and the X-ray diffraction revealed also the presence of metallic chromium in addition to expected chromium(III) oxide and sulfide. FTIR and Raman spectroscopies demonstrated the typical pattern of carbonized materials. The specific surface area and pore volume increased after the activation. The resistivity of the powdered carbonized leather was determined in four-point van der Pauw setup. It decreased by more than one order of magnitude as applied pressure increased from 0.1 to 10 MPa. The sample conductivity depended only a little on the way of carbonization and was of the order of tenths to units S cmMINUS SIGN 1 at 10 MPa. The precarbonization followed by the activation provided the best result with respect to the yield, nitrogen-content, specific surface area and conductivity of the carbonized material. (C) 2023 Elsevier B.V.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20400 - Chemical engineering
Result continuities
Project
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Continuities
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Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Sustainable Chemistry and Pharmacy
ISSN
2352-5541
e-ISSN
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Volume of the periodical
35
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
001055395400001
EID of the result in the Scopus database
2-s2.0-85164340937