ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING
The changes in the conductivity type, capacitance value, and equivalent circuit models of the composite materials, taking into account the impact of graphene-bentonite covers on the aluminum carrier, are discussed. The EIS spectra of the pure aluminum foil lay in the positive reactive resistance dom...
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| Datum: | 2024 |
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| Sprache: | English |
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V.I.Vernadsky Institute of General and Inorganic Chemistry
2024
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oai:ojs2.1444248.nisspano.web.hosting-test.net:article-6642025-01-28T08:26:22Z ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING Boichuk, Oleksandr Pershina, Katherine graphene, bentonite, aluminium foil, composite material, conductivity, capacity. The changes in the conductivity type, capacitance value, and equivalent circuit models of the composite materials, taking into account the impact of graphene-bentonite covers on the aluminum carrier, are discussed. The EIS spectra of the pure aluminum foil lay in the positive reactive resistance domain characterized by the impact of the inductance. The conductivity value is 3.9± 0.1 Sm/cm with decreasing electrostatic capacitance from 0.08 to 0.02 F/g in the frequency range 10-1÷104 Hz. Applying the graphene-bentonite coating changes types of conductivity, from electron type to ionic type. Conductivity has two orders smaller value, and rises with increasing the frequency from 0.014 to 0.02 Sm/cm. The electrochemical equivalent circuit in the case of covering by graphene-bentonite mixtures is the R-CPE parallel circuit has characteristic of the porous electrodes in a supercapacitor. Presence of a dielectric component (bentonite) on the foil surface limits the polarization of composite material and decreases the capacitance value. V.I.Vernadsky Institute of General and Inorganic Chemistry 2024-06-28 Article Article Physical chemistry Физическая xимия Фізична xімія application/pdf https://ucj.org.ua/index.php/journal/article/view/664 10.33609/2708-129X.90.5.2024.21-27 Ukrainian Chemistry Journal; Vol 90 No 5 (2024): Ukrainian Chemistry Journal; 21-27 Украинский химический журнал; Том 90 № 5 (2024): Ukrainian Chemistry Journal; 21-27 Український хімічний журнал; Том 90 № 5 (2024): Ukrainian Chemistry Journal; 21-27 2708-129X 2708-1281 en https://ucj.org.ua/index.php/journal/article/view/664/330 |
| institution |
Ukrainian Chemistry Journal |
| baseUrl_str |
|
| datestamp_date |
2025-01-28T08:26:22Z |
| collection |
OJS |
| language |
English |
| topic_facet |
graphene bentonite aluminium foil composite material conductivity capacity. |
| format |
Article |
| author |
Boichuk, Oleksandr Pershina, Katherine |
| spellingShingle |
Boichuk, Oleksandr Pershina, Katherine ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING |
| author_facet |
Boichuk, Oleksandr Pershina, Katherine |
| author_sort |
Boichuk, Oleksandr |
| title |
ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING |
| title_short |
ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING |
| title_full |
ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING |
| title_fullStr |
ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING |
| title_full_unstemmed |
ELECTROCHEMICAL PROPERTIES OF THE ALUMINIUM FILMS WITH GRAPHENE-BENTONITE COVERING |
| title_sort |
electrochemical properties of the aluminium films with graphene-bentonite covering |
| description |
The changes in the conductivity type, capacitance value, and equivalent circuit models of the composite materials, taking into account the impact of graphene-bentonite covers on the aluminum carrier, are discussed. The EIS spectra of the pure aluminum foil lay in the positive reactive resistance domain characterized by the impact of the inductance. The conductivity value is 3.9± 0.1 Sm/cm with decreasing electrostatic capacitance from 0.08 to 0.02 F/g in the frequency range 10-1÷104 Hz. Applying the graphene-bentonite coating changes types of conductivity, from electron type to ionic type. Conductivity has two orders smaller value, and rises with increasing the frequency from 0.014 to 0.02 Sm/cm. The electrochemical equivalent circuit in the case of covering by graphene-bentonite mixtures is the R-CPE parallel circuit has characteristic of the porous electrodes in a supercapacitor. Presence of a dielectric component (bentonite) on the foil surface limits the polarization of composite material and decreases the capacitance value. |
| publisher |
V.I.Vernadsky Institute of General and Inorganic Chemistry |
| publishDate |
2024 |
| url |
https://ucj.org.ua/index.php/journal/article/view/664 |
| work_keys_str_mv |
AT boichukoleksandr electrochemicalpropertiesofthealuminiumfilmswithgraphenebentonitecovering AT pershinakatherine electrochemicalpropertiesofthealuminiumfilmswithgraphenebentonitecovering |
| first_indexed |
2025-09-24T17:43:56Z |
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2025-09-24T17:43:56Z |
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