Eye readable metal hydride based hydrogen tape sensor for health applications

Conference paper

Authors

P. Ngene

T. Radeva

R. Westerwaal

H. Schreuders

B. Dam

Department

Chemical Engineering () (TU Delft)

DOI: https://doi.org/doi:10.1117/12.2059835

Thin film Breath analysis Tape sensor Eye readable sensor Hydrogen sensor Lactose intolerance Yttriumhydride

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Source:

Proceedings of SPIE 9202 : Photonics Applications for Aviation, Aerospace, Commercial and Harsh Environments V, San Diego (USA), August 17th, 2014

Faculty

Applied Sciences

Department

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.

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