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ACS Appl Mater Interfaces


Title:Highly Selective Metal-Organic Framework Textile Humidity Sensor
Author(s):Rauf S; Vijjapu MT; Andres MA; Gascon I; Roubeau O; Eddaoudi M; Salama KN;
Address:"Sensors Lab, Advanced Membranes & Porous Materials Center (AMPMC), Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia. Departamento de Quimica Fisica and Instituto de Nanociencia de Aragon (INA), Universidad de Zaragoza, 50009 Zaragoza, Spain. Instituto de Ciencia de Materiales de Aragon (ICMA), CSIC and Universidad de Zaragoza, 50009 Zaragoza, Spain. Functional Materials Design, Discovery & Development Research Group (FMD3), Advanced Membranes & Porous Materials Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia"
Journal Title:ACS Appl Mater Interfaces
Year:2020
Volume:20200619
Issue:26
Page Number:29999 - 30006
DOI: 10.1021/acsami.0c07532
ISSN/ISBN:1944-8252 (Electronic) 1944-8244 (Print) 1944-8244 (Linking)
Abstract:"The increase in demand and popularity of smart textiles brings new and innovative ideas to develop a diverse range of textile-based devices for our daily life applications. Smart textile-based sensors (TEX sensors) become attractive due to the potential to replace current solid-state sensor devices with flexible and wearable devices. We have developed a smart textile sensor for humidity detection using a metal-organic framework (MOF) as an active thin-film layer. We show for the first time the use of the Langmuir-Blodgett (LB) technique for the deposition of a MIL-96(Al) MOF thin film directly onto the fabrics containing interdigitated textile electrodes for the fabrication of a highly selective humidity sensor. The humidity sensors were made from two different types of textiles, namely, linen and cotton, with the linen-based sensor giving the best response due to better coverage of MOF. The TEX sensor showed a reproducible response after multiple cycles of measurements. After 3 weeks of storage, the sensor showed a moderate decrease in response. Moreover, TEX sensors showed a high level of selectivity for the detection of water vapors in the presence of several volatile organic compounds (VOCs). Interestingly, the selectivity is superior to some of the previously reported MOF-coated solid-state interdigitated electrode devices and textile sensors. The method herein described is generic and can be extended to other textiles and coating materials for the detection of toxic gases and vapors"
Keywords:Langmuir-Blodgett (LB) films MIL-96(Al) humidity sensor interdigitated electrodes (IDEs) metal-organic framework (MOF) textile sensor thin film;
Notes:"PubMed-not-MEDLINERauf, Sakandar Vijjapu, Mani Teja Andres, Miguel A Gascon, Ignacio Roubeau, Olivier Eddaoudi, Mohamed Salama, Khaled Nabil eng 2020/06/10 ACS Appl Mater Interfaces. 2020 Jul 1; 12(26):29999-30006. doi: 10.1021/acsami.0c07532. Epub 2020 Jun 19"

 
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