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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/16901

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
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.
URI: http://hdl.handle.net/1942/16901
DOI: 10.1002/pssa.201330359
ISI #: 000337759000026
ISSN: 1862-6300
Category: A1
Type: Journal Contribution
Validation: ecoom, 2015
Appears in Collections: Research publications

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