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Fluorinated Transition Metal Carbides for Flexible Supercapacitors
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SYSNO ASEP 0557913 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Fluorinated Transition Metal Carbides for Flexible Supercapacitors Tvůrce(i) Vaghasiya, J. V. (CZ)
Mayorga-Martinez, C. C. (CZ)
Plutnar, Jan (UOCHB-X) RID, ORCID
Pumera, M. (CZ)Zdroj.dok. ACS Applied Energy Materials. - : American Chemical Society - ISSN 2574-0962
Roč. 5, č. 5 (2022), s. 6353-6362Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova flexible device ; MXene ; fluorine chemistry ; energy storage device ; MAX phase Obor OECD Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) Způsob publikování Omezený přístup Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 000822509900001 DOI 10.1021/acsaem.2c00736 Anotace The mixed, hexagonal, layered carbides and nitrides known as the MAX phases are utilized in diverse electrochemical devices, in similar ways as graphite is used. Fluorinated graphite shows significantly improved electrochemical energy storage performance when compared to graphite, and while the carbides MAX phases are extensively studied, fluorine-doped MAX phases are yet to be examined. Herein, a series of fluorinated MAX phase materials suitable as a viable electrode material for flexible supercapacitors (FSCs) were prepared by using a fluorination route. The insertion of fluorine as a heteroatom into the MAX phase structures leads to a significant improvement of their structural, wettability, and electrochemical properties. Various electrochemical and morphological characterizations were performed to investigate the influence of various metal (M) elements (e.g., Ti, Ta, V, Cr, and Mo) on the fluorinated MAX phase electrodes. Moreover, the electrochemical outcomes demonstrate that the fluorinated materials effectively increase the capacitance and power density of the electrodes, and the fundamental concepts are established. As a proof concept, supremely FSCs were utilized as a portable power source for powering a digital timer. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Rok sběru 2023 Elektronická adresa https://doi.org/10.1021/acsaem.2c00736
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