Bifunctional role of PDMS membrane in designing humidity-tolerant HS chemiresistors with high selectivity

A thermally evaporated hydrophobic PDMS membrane could significantly mitigate humidity interference/poisoning (without a decline in response at 50% RH for nearly 3 months) and enhance the selectivity of a CuCrO 2 chemiresistor toward erosive H 2 S, offering an avenue for the practical applications o...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2023-02, Vol.59 (12), p.1689-1692
Main Authors: Zhang, Ruofan, Deng, Zanhong, Chang, Junqing, Zhao, Zhongyao, Wang, Shimao, Meng, Gang
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Summary:A thermally evaporated hydrophobic PDMS membrane could significantly mitigate humidity interference/poisoning (without a decline in response at 50% RH for nearly 3 months) and enhance the selectivity of a CuCrO 2 chemiresistor toward erosive H 2 S, offering an avenue for the practical applications of (H 2 S) chemiresistors in an ambient humid air atmosphere. An approach to address the humidity interference/poisoning and selectivity issue of oxide chemiresistors by conformally coating a PDMS layer.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc05880d