Effect of biochar binding on dielectric properties of color catcher sheets
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00639796" target="_blank" >RIV/60077344:_____/25:00639796 - isvavai.cz</a>
Result on the web
<a href="http://journal-spqeo.org.ua/n3_2025/v28n3-p322-328.pdf" target="_blank" >http://journal-spqeo.org.ua/n3_2025/v28n3-p322-328.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.15407/spqeo28.03.322" target="_blank" >10.15407/spqeo28.03.322</a>
Alternative languages
Result language
angličtina
Original language name
Effect of biochar binding on dielectric properties of color catcher sheets
Original language description
The dielectric properties in the frequency range of 102 to 106 Hz and at the temperatures of 30 to 60 °C of 0.4 mm thick color catcher sheets (nonwoven textile with ion exchange properties) both in the native state and with bound biochar were investigated using the oscilloscope method. The sample dimensions were 1x1 cm. To assess the influence of the sample thickness, samples with several (maximum 4) layers were used together with one-layer textile. It was shown that, unlike the data obtained by us earlier, the dielectric properties of the nonwoven textile without additives are caused by near-electrode processes. It was demonstrated as well that in this case, the dispersion of the frequency dependences of inverse resistance (analog of the imaginary component of complex dielectric permittivity) with respect to capacitance (analog of the real component of complex dielectric permittivity) corresponds to the Debye dispersion. Using the obtained results, the dielectric relaxation time (2.4·10–5 s) and the thickness of the near-electrode layer (1.5 μm) were estimated. Measurements at different temperatures and with several layers of the native textile demonstrated that the parameters of this relaxation process do not depend on both the sample thickness and the temperature. It was found that the sample resistance decreased by 3 orders of magnitude on average in the presence of biochar bound to the textile. In this case, the temperature dependence of the inverse resistance (analog of conductivity for uniform and continuous bodies) obeyed the Arrhenius law. The activation energy of the temperature dependence of the inverse resistance was 0.37 eV, which is greater than the similar value obtained in our work of 2024.
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
10303 - Particles and field physics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Semiconductor Physics Quantum Electronics & Optoelectronics
ISSN
1560-8034
e-ISSN
1605-6582
Volume of the periodical
28
Issue of the periodical within the volume
3
Country of publishing house
UA - UKRAINE
Number of pages
7
Pages from-to
322-328
UT code for WoS article
001582923300011
EID of the result in the Scopus database
2-s2.0-105025581983