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一种基于高灵敏度、柔性金属有机框架聚合物的硫化氢气体传感器。

A Highly Sensitive and Flexible Metal-Organic Framework Polymer-Based HS Gas Sensor.

作者信息

Ali Ashraf, Alzamly Ahmed, Greish Yaser E, Bakiro Maram, Nguyen Ha L, Mahmoud Saleh T

机构信息

Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.

Department of Chemistry, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.

出版信息

ACS Omega. 2021 Jun 30;6(27):17690-17697. doi: 10.1021/acsomega.1c02295. eCollection 2021 Jul 13.

DOI:10.1021/acsomega.1c02295
PMID:34278154
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8280656/
Abstract

We report the fabrication of a novel metal-organic framework (MOF)-polymer mixed-matrix flexible membrane for the detection of hydrogen sulfide (HS) gas at room temperature. This high-performance gas sensor is based on MOF-5 microparticles embedded on a conductivity-controlled chitosan (CS) organic membrane. The conductivity of the organic membrane is controlled by blending it with a glycerol ionic liquid (IL) at different concentrations. The sensor showed a remarkable detection sensitivity for HS gas at a concentrations level as low as 1 ppm at room temperature. The MOF-5/CS/IL gas sensor demonstrates a highly desirable detection selectivity, fast response time (<8 s), recovery time of less than 30 s, and outstanding sensing stability averaging at 97% detection with 50 ppm of HS gas. This composite having high sensitivity, low-power consumption, and flexibility holds great promise for addressing current challenges pertinent to environmental sustainability.

摘要

我们报道了一种新型金属有机框架（MOF）-聚合物混合基质柔性膜的制备，用于在室温下检测硫化氢（HS）气体。这种高性能气体传感器基于嵌入在电导率可控壳聚糖（CS）有机膜上的MOF-5微粒。通过将有机膜与不同浓度的甘油离子液体（IL）混合来控制其电导率。该传感器在室温下对低至1 ppm浓度水平的HS气体表现出显著的检测灵敏度。MOF-5/CS/IL气体传感器具有非常理想的检测选择性、快速响应时间（<8 s）、小于30 s的恢复时间以及出色的传感稳定性，平均对50 ppm的HS气体检测率为97%。这种具有高灵敏度、低功耗和柔韧性的复合材料在应对当前与环境可持续性相关的挑战方面具有巨大潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/15f4575332b8/ao1c02295_0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/92de913210f5/ao1c02295_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/c7c543b427b2/ao1c02295_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/5e84a64e7443/ao1c02295_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/03e020d9cbc6/ao1c02295_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/fe31987d2c63/ao1c02295_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/b16e9a4b48d8/ao1c02295_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/9ffb54db39e1/ao1c02295_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/7e6a185173d0/ao1c02295_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/1124f151f268/ao1c02295_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/15f4575332b8/ao1c02295_0011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/92de913210f5/ao1c02295_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/c7c543b427b2/ao1c02295_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/5e84a64e7443/ao1c02295_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/03e020d9cbc6/ao1c02295_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/fe31987d2c63/ao1c02295_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/b16e9a4b48d8/ao1c02295_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/9ffb54db39e1/ao1c02295_0008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/7e6a185173d0/ao1c02295_0009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/1124f151f268/ao1c02295_0010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/64e5/8280656/15f4575332b8/ao1c02295_0011.jpg

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