Tu-CHS-05 - Engineering Selective Detection of Hazardous H? and NO? Using Pd Functionalized MXene/ WS? Gas Sensors.

Event

EUROSENSORS 2026
2026-09-06 - 2026-09-09
Zurich

Band

Poster

Chapter

Chemical Sensors

Author(s)

M. Elsheshtawy, S. B. Malik, F. Güell, E. Llobet, F. E. Annanouch - Universitat Rovira i Virgili,Tarragona (Spain)

Pages

427 - 428

DOI

10.5162/eurosensors2026/Tu-CHS-05

ISBN

978-3-910600-12-6

Price

free

Abstract

Reliable detection of hazardous gases such as hydrogen (H ₂ ) and nitrogen dioxide (NO ₂ ) is essential for industrial safety, environmental monitoring, and emerging hydrogen-based energy technologies. Two-dimensional transition metal dichalcogenides (TMDs), particularly WS ₂ , have recently garnered attention as promising materials for gas sensing applications, due to their high surface reactivity and tunable electronic properties. In this work, the sensing performance of WS ₂ was engineered through hybridization with titanium carbide MXene (Ti ₃ C ₂ Tₓ) and palladium nanoparticles. This study presents a highly sensitive Pd functionalized MXene/WS 2 nanocomposite-based sensors operating at low temperature of 10⁰ °C. The WS ₂ /MXene sensor exhibited a clear sensitivity toward NO ₂ , with a response of 75%. After Pd functionalization, the sensing behavior shifted from NO ₂ toward H ₂ , giving a dominant H ₂ response of approximately 66%, while the response toward NO ₂ decreased to nearly half.