Nanohybrids of a MXene and transition metal dichalcogenide for selective detection of volatile organic compounds

Nature Communications
Winston Yenyu ChenLia Stanciu

Abstract

Two-dimensional transition metal carbides/nitrides, known as MXenes, have been recently receiving attention for gas sensing. However, studies on hybridization of MXenes and 2D transition metal dichalcogenides as gas-sensing materials are relatively rare at this time. Herein, Ti3C2Tx and WSe2 are selected as model materials for hybridization and implemented toward detection of various volatile organic compounds. The Ti3C2Tx/WSe2 hybrid sensor exhibits low noise level, ultrafast response/recovery times, and good flexibility for various volatile organic compounds. The sensitivity of the hybrid sensor to ethanol is improved by over 12-fold in comparison with pristine Ti3C2Tx. Moreover, the hybridization process provides an effective strategy against MXene oxidation by restricting the interaction of water molecules from the edges of Ti3C2Tx. An enhancement mechanism for Ti3C2Tx/WSe2 heterostructured materials is proposed for highly sensitive and selective detection of oxygen-containing volatile organic compounds. The scientific findings of this work could guide future exploration of next-generation field-deployable sensors.

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Citations

Aug 12, 2020·Advanced Materials·Massoud Malaki, Rajender S Varma
Oct 21, 2020·Dalton Transactions : an International Journal of Inorganic Chemistry·Qian ChenGuangyin Fan
Oct 28, 2020·Critical Reviews in Analytical Chemistry·Faisal ShahzadRizwan Ali Naqvi
Jan 24, 2021·Journal of Hazardous Materials·Yongshan XuNicola Pinna
Feb 9, 2021·ACS Omega·Sadegh Mehdi AghaeiBalaji Panchapakesan
Jan 16, 2021·Chemosphere·Yubing Sun, Ying Li
Feb 24, 2021·Chemical Society Reviews·Sharafadeen GbadamasiNasir Mahmood
Mar 7, 2021·Nanomaterials·Milena TomićStella Vallejos
Mar 16, 2021·Journal of the American Chemical Society·Gourab BhaskarJulia V Zaikina
May 4, 2021·Advanced Materials·Dong Hae HoJeong Ho Cho
May 14, 2021·Research : a Science Partner Journal·Jiacheng CaoWei Huang
Jun 10, 2021·Advanced Science·Pin MaHui Ying Yang
Dec 9, 2020·ACS Applied Materials & Interfaces·Wenzhe GuoKhaled N Salama
Sep 9, 2021·ACS Sensors·Debasree BurmanPrasanta Kumar Guha

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Methods Mentioned

BETA
2
2 hybrid
AFM
dynamic light scattering
electron diffraction
transmission
X-Ray
scanning

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