The functionality of W1.33C i-MXene toward humidity sensing at room temperature

The functionality of W1.33C i-MXene toward humidity sensing at room temperature Full article

Journal

Journal of Alloys and Compounds
ISSN: 0925-8388 , E-ISSN: 1873-4669

Output data

Year: 2026, Volume: 1050, Article number : 185870, Pages count : 9 DOI: 10.1016/j.jallcom.2025.185870

Tags

MXene, Gas sensor, Tungsten carbide, Ordered vacancy, Multisensor array, Room temperature

Authors

Plugin I.A. ¹ , Tsyganov A.R. ¹ , Zotov I.V. ¹ , Romashkin A.V ² , Korotaev E.V. ³ , Lashkov A.V. ² , Solomatin M.A. ¹ , Varezhnikov A.S. ¹ , Gorokhovsky A.V. ¹ , Nikitin K.G. ² , Sysoev V.V. ¹ , Gorshkov N.V. ¹

Affiliations

1	Yuri Gagarin State Technical University of Saratov, 77 Polytechnicheskaya str., Saratov 410054, Russia
2	National Research University of Electronic Technology, Moscow 124498, Russia
3	Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, 3 Acad. Lavrentiev Ave., Novosibirsk 630090, Russia

Gas sensors which could efficiently operate at room temperature (RT) are highly requested by numerous endusers including various industries, Internet of Things, and personal gadgets. Therefore, 2D MXenes of metal carbides are suggested as a possible emerging option to be alternative to conventional metal oxides. Here, we consider i-MXene structures of W1.33C with in-plane ordered vacancies at the metal sites for additional functionalization of the material. The materials were properly characterized by XRD, XPS, and electron microscopy and further drop-casted over on-chip multielectrode array to be exposed upon gaseous analytes, representative of alcohols, ketones, arenes, and humidity at RT. It is shown that W1.33C structures are mostly sensitive to H2O vapors with the limit of detection going down below 1 ppm. The selectivity to distinguish various analytes is demonstrated via applying a multisensor approach while processing the vector response yielded by the entire array of on-chip W1.33C-based sensor elements.

Plugin I.A. , Tsyganov A.R. , Zotov I.V. , Romashkin A.V. , Korotaev E.V. , Lashkov A.V. , Solomatin M.A. , Varezhnikov A.S. , Gorokhovsky A.V. , Nikitin K.G. , Sysoev V.V. , Gorshkov N.V.
The functionality of W1.33C i-MXene toward humidity sensing at room temperature
Journal of Alloys and Compounds. 2026. V.1050. 185870 :1-9. DOI: 10.1016/j.jallcom.2025.185870 WOS Scopus

Published print:

Jan 15, 2026

Web of science:	WOS:001658263300001
Scopus:	2-s2.0-105026298543

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