Eye readable metal hydride based hydrogen tape sensor for health applications

Conference paper (2014)

Authors

P. Ngene ChemE/Materials for Energy Conversion and Storage - AS
T.R. Radeva ChemE/Materials for Energy Conversion and Storage - AS
R.J. Westerwaal ChemE/Materials for Energy Conversion and Storage - AS
H. Schreuders ChemE/O&O groep - AS
B. Dam ChemE/Chemical Engineering
Department
ChemE/Chemical Engineering
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Published Date

2014

Language

English

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Department

ChemE/Chemical Engineering

Abstract

Using the change in the intrinsic optical properties of YMg-based thin films upon exposure to hydrogen, we observe the presence of hydrogen at concentrations as low as 20 ppm just by a change in color. The eye-visible color change circumvents the use of any electronics in this device, thereby making it an inexpensive H2 detector. The detector shows high selectivity towards H2 in H2-O2-mixtures, and responds within 20 s to 0.25% H2 in the presence of 18% O2.