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

Ruofan Zhang; Zanhong Deng; Junqing Chang; Zhongyao Zhao; Shimao Wang; Gang Meng

doi:10.1039/D2CC05880D

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

Ruofan Zhang,‡^abc Zanhong Deng,‡^bc Junqing Chang,^bc Zhongyao Zhao,^ab Shimao Wang

^bc and Gang Meng

*^bc

Author affiliations

* Corresponding authors

^a School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, China

^b Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, and Key Lab of Photovoltaic and Energy Conservation Materials, Chinese Academy of Sciences, Hefei, China
E-mail: menggang@aiofm.ac.cn

^c Advanced Laser Technology Laboratory of Anhui Province, Hefei 230037, China

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.

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Article information

DOI: https://doi.org/10.1039/D2CC05880D
Article type: Communication
Submitted: 31 Oct 2022
Accepted: 16 Jan 2023
First published: 16 Jan 2023

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Chem. Commun., 2023,59, 1689-1692

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

R. Zhang, Z. Deng, J. Chang, Z. Zhao, S. Wang and G. Meng, Chem. Commun., 2023, 59, 1689 DOI: 10.1039/D2CC05880D

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Chemical Communications