Chemoresistive Properties of V2CTx MXene and the V2CTx/V3O7 Nanocomposite Based on It

Autor: Artem S. Mokrushin, Ilya A. Nagornov, Aleksey A. Averin, Tatiana L. Simonenko, Nikolay P. Simonenko, Elizaveta P. Simonenko, Nikolay T. Kuznetsov
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Chemosensors, Vol 11, Iss 2, p 142 (2023)
Druh dokumentu: article
ISSN: 2227-9040
DOI: 10.3390/chemosensors11020142
Popis: The in-situ Raman spectroscopy oxidation of the accordion-like V2CTx MXene has been studied. It was found that a nanocomposite of V2CTx/V3O7 composition was formed as a result. The elemental and phase composition, the microstructure of the synthesized V2CTx powder and MXene film as well as the V2CTx/V3O7 nanocomposite obtained at a minimum oxidation temperature of 250 °C were studied using a variety of physical and chemical analysis methods. It was found that the obtained V2CTx and V2CTx/V3O7 films have an increased sensitivity to ammonia and nitrogen dioxide, respectively, at room temperature and zero humidity. It was shown that the V2CTx/V3O7 composite material is characterized by an increase in the response value for a number of analytes (including humidity) by more than one order of magnitude, as well as a change in their detection mechanisms compared to the individual V2CTx MXene.
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