Semiconductor Metal Oxides as Hydrogen Gas Sensors
© 2014 The Authors. Published by Elsevier Ltd. Hydrogen (H 2 ) is a clean, portable and potentially inexhaustible energy source with the potential to become a panacea for clean energy generation. However, H 2 has wide explosive concentration range (4-75 vol%), low ignition energy (0.02 mJ) and large...
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| Format: | Conference Proceeding |
| Published: |
2018
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| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84923349499&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/45343 |
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| Institution: | Chiang Mai University |
| Summary: | © 2014 The Authors. Published by Elsevier Ltd. Hydrogen (H 2 ) is a clean, portable and potentially inexhaustible energy source with the potential to become a panacea for clean energy generation. However, H 2 has wide explosive concentration range (4-75 vol%), low ignition energy (0.02 mJ) and large flame propagation velocity. Due to its ultra small molecular size, confinement and containment of this gas are difficult. Moreover, H 2 cannot be detected by human senses because it is colorless and odorless. Thus, accurate detection and monitoring of hydrogen is an important issue. This presentation is a review of hydrogen gas sensors based on semiconductor metal oxides synthesized by a variety of synthetic techniques, namely RF magnetron sputtering, reactive RF sputtering, electro-spinning, Flame spray pyrolysis, hydrothermal and precipitation. The effect of synthetic methods and metal loading on the metal oxides on the response of hydrogen sensors will be discussed. |
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