Pristine and MPTMS-functionalized Ti3C2Tx and Nb2CTx MXenes were investigated as chemiresistive sensors for nitric oxide under variable humidity at room temperature. Functionalization preserved the layered morphology while modifying the surface chemistry and reducing water interference. Ti3C2Tx showed a p-type-like response, whereas Nb2CTx displayed n-type behavior. MPTMS increased the response amplitude, especially for the niobium-based MXene, and enabled measurable signals at 5 ppm NO with sub-ppm detection prospects for breath analysis.
Functionalized MXenes Chemiresistors for Room-Temperature NO Sensing / E. Pargoletti, B. Davis, Y. Gogotsi. Eurosensors : 6-9 September Zurich, Switzerland 2026.
Functionalized MXenes Chemiresistors for Room-Temperature NO Sensing
E. Pargoletti
Primo
;
2026
Abstract
Pristine and MPTMS-functionalized Ti3C2Tx and Nb2CTx MXenes were investigated as chemiresistive sensors for nitric oxide under variable humidity at room temperature. Functionalization preserved the layered morphology while modifying the surface chemistry and reducing water interference. Ti3C2Tx showed a p-type-like response, whereas Nb2CTx displayed n-type behavior. MPTMS increased the response amplitude, especially for the niobium-based MXene, and enabled measurable signals at 5 ppm NO with sub-ppm detection prospects for breath analysis.
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