The detection of hydrogen with a nanotube structured sensor

Hua Gu; A. Polar; H. Hau Wang; J. E. Indacochea; Ming L. Wang

doi:10.1117/12.715317

10 April 2007 The detection of hydrogen with a nanotube structured sensor

Hua Gu, A. Polar, H. Hau Wang, J. E. Indacochea, Ming L. Wang

Proceedings Volume 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007; 65291U (2007) https://doi.org/10.1117/12.715317
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2007, San Diego, California, United States

Abstract

The employment of hydrogen has shown a lot of promises as an alternative for conventional fuel sources. However, if not handled properly, hydrogen content as low as 4% can lead to a life-threatening catastrophe. Some sensors for hydrogen detection have already been built to address this safety issue. Unlike most of the traditional hydrogen sensors, the sensor developed in this study features high sensitivity, fast response, miniature size, and the ability to detect hydrogen under room temperature. The sensor template has a special nanoporous structure, coming from self assembled aluminum oxide after anodization process. Deposition of palladium particles into the nanopores brings superb hydrogen sensing ability by introducing a granular structure of sensing particles. The sensor prototype has been tested under controlled atmosphere with varying hydrogen concentrations.

Citation Download Citation

Hua Gu, A. Polar, H. Hau Wang, J. E. Indacochea, and Ming L. Wang "The detection of hydrogen with a nanotube structured sensor", Proc. SPIE 6529, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2007, 65291U (10 April 2007); https://doi.org/10.1117/12.715317

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