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Title: | Detection of hydrogen peroxide vapor by use of manganese(IV) oxide as catalyst for calorimetric gas sensors | Authors: | Oberländer, Jan Kirchner, Patrick BOYEN, Hans-Gerd Schöning, Michael J. |
Issue Date: | 2014 | Source: | PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 211 (6), p. 1372-1376 | Abstract: | In this work, the catalyst manganese(IV) oxide (MnO2), of calorimetric gas sensors (to monitor the sterilization agent vaporized hydrogen peroxide) has been investigated in more detail. Chemical analyses by means of X-ray-induced photoelectron spectroscopy have been performed to unravel the surface chemistry prior and after exposure to hydrogen peroxide vapor at elevated temperature, as applied in the sterilization processes of beverage cartons. The surface characterization reveals a change in oxidation states of the metal oxide catalyst after exposure to hydrogen peroxide. Additionally, a cleaning effect of the catalyst, which itself is attached to the sensor surface by means of a polymer interlayer, could be observed. Schematic demonstrating the principle of the investigated calorimetric hydrogen peroxide gas sensor. Differential set-up of two temperature-sensitive elements; right side: passivated by an inert polymer; left side: additionally catalytically activated. | Notes: | [Oberlaender, Jan; Kirchner, Patrick; Schoening, Michael J.] Aachen Univ Appl Sci, Inst Nano & Biotechnol, D-52428 Julich, Germany. [Oberlaender, Jan; Schoening, Michael J.] Forschungszentrum Julich, Peter Grunberg Inst PGI 8, D-52425 Julich, Germany. [Boyen, Hans-Gerd] Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. | Keywords: | calorimetric gas sensors; hydrogen peroxide; MnO2; X-ray photoelectron spectroscopy | Document URI: | http://hdl.handle.net/1942/16901 | ISSN: | 1862-6300 | e-ISSN: | 1862-6319 | DOI: | 10.1002/pssa.201330359 | ISI #: | 000337759000026 | Rights: | © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2015 |
Appears in Collections: | Research publications |
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