Facile Design of Ti₃C₂T_X (MXene) Modified Spherical SrTiO₃ Structure toward Highly Sensitive Room Temperature Detection of NO₂

ACS Applied Electronic Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 4, 2024

Two-dimensional nanomaterials have garnered recent interest among scientists in gas sensing applications. MXene (Ti3C2Tx) [MX] is one of the top priorities researchers owing to its numerous advantages like abundant surface-active sites, large surface area, and high conductivity. Designing a room temperature sensor has become indispensable era environmental industrial monitoring. Heterojunction creation helps band alignment by transfer charge at junction, which further better performance enhanced response. In this work, SrTiO3 (STO) perovskite-MX-based nanocomposite been developed using simple electrostatic self-assembly technique combining spherically shaped STO on 2D layered MX sheet. The fabricated exhibits good selectivity, sensitivity, long-term stability toward NO2 detection 27 °C. response recorded for STO-MX composite was 38.79% 50 ppm gas, triple five times higher than pristine with an exceptional recovery time 8 12s. Also, study demonstrates outstanding linearity 9-fold increase from 1 30 reproducibility. LOD (limit detection) achieved material lower, that is, 300 ppb. This work unveils utility perovskite based as efficient strategy toxic gas.

Language: Английский

Structural and physical properties of the MAX phases RE2SX (RE = La ∼ Lu; X=B, C, N) via first-principles calculations

Journal of Physics and Chemistry of Solids, Journal Year: 2024, Volume and Issue: 196, P. 112335 - 112335

Published: Sept. 13, 2024

Language: Английский