Gas sensors based on plasma-electrochemically oxidized titanium foils

We have developed a preparation technique to form graphite/TiO<sub>2</sub>/Ti and platinum–graphite/TiO<sub>2</sub>/Ti solid-state sensors. It is based on plasma electrolytic oxidation (PEO) of titanium foils, whereby a porous titanium oxide layer is formed with well-defined...

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Main Authors: M. El Achhab, K. Schierbaum
Format: Article
Language:English
Published: Copernicus Publications 2016-07-01
Series:Journal of Sensors and Sensor Systems
Online Access:http://www.j-sens-sens-syst.net/5/273/2016/jsss-5-273-2016.pdf
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author M. El Achhab
K. Schierbaum
author_facet M. El Achhab
K. Schierbaum
author_sort M. El Achhab
collection DOAJ
description We have developed a preparation technique to form graphite/TiO<sub>2</sub>/Ti and platinum–graphite/TiO<sub>2</sub>/Ti solid-state sensors. It is based on plasma electrolytic oxidation (PEO) of titanium foils, whereby a porous titanium oxide layer is formed with well-defined phase composition and a reproducible microstructure. A printing method is used to deposit graphite or catalytically active graphite–platinum electrodes. Our design enables the application of a variety of different detection principles such as calorimetry, impedances and amperometry. This study reports results for H<sub>2</sub>, H<sub>2</sub>O, and CO sensing at room temperature with the most appropriate detection principle, electrode composition and titanium oxide microstructure.
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spelling doaj.art-4933f559ebca4362bd81a2d4140bbea32022-12-21T18:30:13ZengCopernicus PublicationsJournal of Sensors and Sensor Systems2194-87712194-878X2016-07-015227328110.5194/jsss-5-273-2016Gas sensors based on plasma-electrochemically oxidized titanium foilsM. El Achhab0K. Schierbaum1Department of Materials Science, Institute of Experimental Condensed Matter Physics, Heinrich Heine University, Düsseldorf, GermanyDepartment of Materials Science, Institute of Experimental Condensed Matter Physics, Heinrich Heine University, Düsseldorf, GermanyWe have developed a preparation technique to form graphite/TiO<sub>2</sub>/Ti and platinum–graphite/TiO<sub>2</sub>/Ti solid-state sensors. It is based on plasma electrolytic oxidation (PEO) of titanium foils, whereby a porous titanium oxide layer is formed with well-defined phase composition and a reproducible microstructure. A printing method is used to deposit graphite or catalytically active graphite–platinum electrodes. Our design enables the application of a variety of different detection principles such as calorimetry, impedances and amperometry. This study reports results for H<sub>2</sub>, H<sub>2</sub>O, and CO sensing at room temperature with the most appropriate detection principle, electrode composition and titanium oxide microstructure.http://www.j-sens-sens-syst.net/5/273/2016/jsss-5-273-2016.pdf
spellingShingle M. El Achhab
K. Schierbaum
Gas sensors based on plasma-electrochemically oxidized titanium foils
Journal of Sensors and Sensor Systems
title Gas sensors based on plasma-electrochemically oxidized titanium foils
title_full Gas sensors based on plasma-electrochemically oxidized titanium foils
title_fullStr Gas sensors based on plasma-electrochemically oxidized titanium foils
title_full_unstemmed Gas sensors based on plasma-electrochemically oxidized titanium foils
title_short Gas sensors based on plasma-electrochemically oxidized titanium foils
title_sort gas sensors based on plasma electrochemically oxidized titanium foils
url http://www.j-sens-sens-syst.net/5/273/2016/jsss-5-273-2016.pdf
work_keys_str_mv AT melachhab gassensorsbasedonplasmaelectrochemicallyoxidizedtitaniumfoils
AT kschierbaum gassensorsbasedonplasmaelectrochemicallyoxidizedtitaniumfoils