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Wyszukujesz frazę "chronopotentiometry" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Electrorefining of Indium Metal From Impure In-Sn Alloy in Fluoride Molten Salt
Autorzy:
Lee, Hyun-Gyu
Choi, Sang-Hoon
Sim, Jae-Jin
Lim, Jae-Hong
Hyun, Soong-Keun
Lee, Jong-Hyeon
Park, Kyoung-Tae
Powiązania:
https://bibliotekanauki.pl/articles/352615.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
indium metal
molten salt electrolysis
cyclic voltammetry
chronopotentiometry
electrodeposition
Opis:
In this study, molten salt electrorefining was used to recover indium metal from In-Sn crude metal sourced from indium tin oxide (ITO) scrap. The electrolyte used was a mixture of eutectic LiF-KF salt and InF3 initiator, melted and operated at 700°C. Voltammetric analysis was performed to optimize InF3 content in the electrolyte, and cyclic voltammetry (CV) was used to de-termine the redox potentials of In metal and the electrolyte. The optimum initiator concentration was 7 wt% of InF3 , at which the diffusion coefficients were saturated. The reduction potential was controlled by applying constant current densities of 5, 10, and 15 mA/cm2 using chronopotentiometry (CP) techniques. In metal from the In-Sn crude melt was deposited on the cathode surface and was collected in an alumina crucible.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 3; 899-905
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the parameters of supercapacitors containing polypyrrole and its derivatives
Autorzy:
Gocki, M.
Nowak, A.J.
Karoń, K.
Powiązania:
https://bibliotekanauki.pl/articles/24200628.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
polymer supercapacitor
conductive polymers
cyclic voltammetry
chronopotentiometry
superkondensator polimerowy
polimery przewodzące
woltamperometria cykliczna
chronopotencjometria
Opis:
Purpose: Investigation of some parameters of energy storage devices (so-called supercapacitors) in which the structures of selected conductive polymers were implemented. Researchers were interested in the relationship between the parameters of the supercapacitor and the molecular structure of the conductive polymer used as the electrode material. Design/methodology/approach: The polypyrrole and its derivatives were produced by an electropolymerization process performed with cyclic voltammetry. During the research, polymer supercapacitors were created containing collectors made of ITO plates. Measurement of device parameters using cyclic voltammetry and chronopotentiometry. In addition, the devices use polymer electrolytes based on poly (methyl methacrylate) (PMMA). Findings: Devices containing polypyrrole have the best electrochemical parameters, while supercapacitors containing poly (phenylpyrrole) have the lowest parameters. This parameter is due to the high hindrance in the poly(phenylpyrrole) molecule in the form of an aromatic ring. Research limitations/implications: The most significant limitation of the devices is their durability due to the low strength of the conductive layer on ITO plates. This layer was easily degraded with too many test cycles. Practical implications: It was confirmed that polypyrrole and its derivatives could be used as electrode materials in energy storage devices. Originality/value: One of the few studies that allow the evaluation of the molecular structure of polypyrrole and its derivatives as electrode material in symmetrical supercapacitors.
Źródło:
Archives of Materials Science and Engineering; 2023, 120, 1; 5--14
1897-2764
Pojawia się w:
Archives of Materials Science and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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