Effect of electrolytes on electrical charge storage performance in a compost-based symmetric device
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10495570" target="_blank" >RIV/00216208:11320/25:10495570 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=SEFuag3ev3" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=SEFuag3ev3</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00339-025-08309-0" target="_blank" >10.1007/s00339-025-08309-0</a>
Alternative languages
Result language
angličtina
Original language name
Effect of electrolytes on electrical charge storage performance in a compost-based symmetric device
Original language description
The prevalence of compost and its integration within the bio-circular economy, facilitating the seamless conversion of bio-waste into compost, present an auspicious avenue for the exploration of renewable energy storage solutions. Thus, the current study investigates the effect of electrolytes on faradic and non-faradic processes of charge storage in a symmetrical device design based on compost. The inquiry examines the composts as an electrode material and the influence of various current collectors (G-G, Cu-Cu and IN-IN) across distinct aqueous electrolyte environments (1 M KNO3, 1 M KCl and 1 M KOH). The findings reveal the composts' capacity to accommodate both capacitive and non-capacitive charge storage processes within a symmetric dual-current collector apparatus, showcasing the multifaceted charge storage modalities akin to those observed in capacitors and batteries. The electrochemical assessments, conducted through cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) profiling, and electrochemical impedance spectroscopy (EIS), elucidate the non-faradaic and faradaic charge storage mechanisms in terms of the charge storage efficiency, temporal characteristics of the charge and discharge cycle, specific capacitance, and specific capacity. The results obtained evince the superior charge storage capabilities of the compost samples across various electrolyte solutions relative to the aqueous media. The compost specimen featuring a C:N ratio of 145.44 in a 1 M KCl solution assembled in a symmetric G-G current collectors device exhibited the optimal electrochemical performance. At a scan rate of 100 mV/s within a potential window of +/- 4.5 V, the CV studies exhibited an area under the curve of 3.3142C, a specific capacitance of 18.4mF/g and a specific capacity of 82.8 mC/g, while the GCD studies were characterised by a charging time of 51 s, a discharging time of 47.2 s, a specific capacitance of 10.4 mF/g and a specific capacity of 94.4 mC/g at an applied current of 400 mA within a potential window of +/- 4.5 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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach<br>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
Applied Physics A: Materials Science and Processing
ISSN
0947-8396
e-ISSN
1432-0630
Volume of the periodical
131
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
15
Pages from-to
208
UT code for WoS article
001425494200001
EID of the result in the Scopus database
2-s2.0-85218419116