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Bifunctional role of PDMS membrane in designing humidity-tolerant H2S chemiresistors with high selectivity.

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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 CuCrO2… Click to show full abstract

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 CuCrO2 chemiresistor toward erosive H2S, offering an avenue for the practical applications of (H2S) chemiresistors in an ambient humid air atmosphere.

Keywords: humidity; selectivity; h2s chemiresistors; pdms membrane

Journal Title: Chemical communications
Year Published: 2023

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