Influence of Catalyst Loading Method on Titania-Based Optical Hydrogen Gas Sensing Properties

Abstract:

We reported that titania ceramic coating loaded with palladium catalyst worked as an optical hydrogen gas sensor at room temperature. The palladium metal of this sensor worked as a catalyst not only for room-temperature operation but also for high selectivity to hydrogen gas. Precise control of metal/ceramic interface between the titania and the palladium was very important in order to improve the sensor performance such as sensitivity, response time, recovery time. Influence of a difference in palladium-catalyst loading method (photodeposition and sputtering) on the optical hydrogen gas sensing properties for the titania-based sensor was investigated. It was found that the catalytic loading process significantly affected the optical hydrogen characteristics of the titania-based coating.

• Periodical: Key Engineering Materials (Volume 582)
• Pages: 210-213
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.582.210
• Online since: September 2013
• Authors: Junichi Hamagami, Ryo Araki, Shohei Onimaru, G. Kawamura, Atsunori Matsuda
• Keywords: Optical Hydrogen Sensing Property, Palladium Catalyst, Photodeposition, Sol-Gel Process, Sputtering, Titania-Based Optical Hydrogen Sensor

References

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DOI: 10.4028/www.scientific.net/kem.485.275

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