MIL-101(Cr) MOF as an Effective Siloxane Sensor
Source abstract
Abstract
Volatile methylsiloxanes (VMSs) are common silicone degradation byproducts that cause serious concern for the contamination of sensitive electronics and optics, among others. With the goal of fast, online detection of VMS, we herein highlight the mesoporous MIL-101(Cr) MOF as a promising mass sensing layer for integration with a quartz crystal microbalance (QCM), using an in-house modified gravimetric adsorption system capable of achieving extremely low concentrations of siloxane D4 (down to 0.04 ppm), targeting applications for monitoring in indoor spaces and spacecraft. Our developed MIL-101(Cr)@QCM sensor achieves near-perfect reversibility with no hysteresis alongside excellent repeatability over cycling and fast response/recovery times under 1 min. We attribute this capability to optimum host/guest interactions as uncovered through molecular simulations.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Acoustic Wave Resonator Technologies · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
ICGM, Univ. Montpellier, CNRS, ENSCM, F-34095 Montpellier, France
Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles St Quentin en Yvelines, Université Paris-Saclay, 78035 Versailles, France
Centre National d’Etudes Spatiales, DTN/QE/LE, 18 Avenue Edouard Belin, 31401 Toulouse, Cedex 09, France
Funding
R?gion Occitanie Pyr?n?es-M?diterran?e · Centre National d'Etudes Spatiales
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