132118 20240301161205.0 doi 10.1002/adfm.202007281 sideral 131578 ART-2021-131578 eng Lu, Ru-Qiang Methane Detection with a Tungsten-Calix[4]arene-Based Conducting Polymer Embedded Sensor Array 2021 The detection of methane is important for industry, environment, and our daily life, but is made challenging by its small size, high volatility, and nonpolar nature. Herein, a tungsten-capped calix[4]arene-based p-doped conducting polymer with hexafluorophosphate or perchlorate counter-anions as a transducer is used to detect methane in dry air. The host–guest interaction between calixarene moieties within the polymer chain and methane molecules leads to the resistance variation of the polymer. The experimental limit of detection (LoD) of methane for the polymer-based sensor is demonstrated to be less than 50 ppm at room temperature, and the extrapolated theoretical LoD of 2 ppm represents exceptional sensitivity to methane. Furthermore, the discrimination of methane from interfering volatile organic compounds is achieved by exploiting a sensor array using complementary chemiresistors and principal component analysis. Access copy available to the general public Unrestricted info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 19.924 2021 CHEMISTRY, PHYSICAL 10 / 165 = 0.061 2021 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 17 / 344 = 0.049 2021 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 8 / 108 = 0.074 2021 Q1 T1 PHYSICS, CONDENSED MATTER 6 / 69 = 0.087 2021 Q1 T1 CHEMISTRY, MULTIDISCIPLINARY 10 / 179 = 0.056 2021 Q1 T1 PHYSICS, APPLIED 8 / 161 = 0.05 2021 Q1 T1 5.0 2021 Biomaterials 2021 Q1 Chemistry (miscellaneous) 2021 Q1 Materials Science (miscellaneous) 2021 Q1 Electronic, Optical and Magnetic Materials 2021 Q1 Electrochemistry 2021 Q1 26.6 2021 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Luo, Shao-Xiong Lennon He, Qilin Concellón, Alberto (orcid)0000-0002-8932-9085 Swager, Timothy M. 31, 6 (2021), 2007281 [16 pp.] Adv. funct. mater. Advanced Functional Materials 1616-301X 689616 http://zaguan.unizar.es/record/132118/files/texto_completo.pdf Postprint 1535022 http://zaguan.unizar.es/record/132118/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:132118 articulos driver 2024-03-01-14:49:34 ARTICLE