DataVXACS Applied Materials & InterfacesPaper
journal article·2017-08-02

Lightweight, Room-Temperature CO2 Gas Sensor Based on Rare-Earth Metal-Free Composites—An Impedance Study

Christoph Willa, Alexander Schmid, Danick Briand, Jiayin Yuan, Dorota Koziej

ACS Applied Materials & Interfaces· Volume 9· Issue 30
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Source abstract

Abstract

High Resolution Image Download MS PowerPoint Slide We report a light, flexible, and low-power poly(ionic liquid)/alumina composite CO 2 sensor. We monitor the direct-current resistance changes as a function of CO 2 concentration and relative humidity and demonstrate fast and reversible sensing kinetics. Moreover, on the basis of the alternating-current impedance measurements we propose a sensing mechanism related to proton conduction and gas diffusion. The findings presented herein will promote the development of organic/inorganic composite CO 2 gas sensors. In the future, such sensors will be useful for numerous practical applications ranging from indoor air quality control to the monitoring of manufacturing processes.
Source: openalex_inverted_index · Quality: baseline

Research context

Composites

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Sensor and Energy Harvesting Materials · Analytical Chemistry and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Laboratory for Multifunctional Materials, ETH Zurich, Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland

Center for Hybrid Nanostructures and Institute of Nanostructure and Solid State Physics, University of Hamburg, Luruper Chaussee 149, 22607 Hamburg, Germany

Ecole Polytechnique Fédérale de Lausanne, LMTS, Rue de la Maladière 71b, 2002 Neuchâtel, Switzerland

Department of Chemistry and Biomolecular Science and Center for Advanced Materials Processing, Clarkson University, Potsdam, New York 13699, United States

Funding

Eidgen?ssische Technische Hochschule Z?rich · Clarkson University · H2020 European Research Council

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