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US 8,409,869 B2Granted
Hydrogen sensor, hydrogen detecting system and method
AssigneeNational Tsing Hua University
InventorsHirotaka Sakaue, Chih-Yung Huang
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Abstract
A hydrogen sensor comprises a substrate having a surface coated with a hydrogen absorbing material and a temperature sensitive luminophore such that when the temperature sensitive luminophore is excited, it generates a fluorescent light, the luminescence of which is changed by an exothermic heat resulting from the adsorption of hydrogen through the hydrogen absorbing material. A hydrogen detecting system and a method of detecting hydrogen using the hydrogen sensor are also disclosed.
Claims13
A hydrogen sensor comprising:
- a substrate having a surface coated with a hydrogen absorbing material and a temperature sensitive luminophore such that when said temperature sensitive luminophore is excited, it generates a fluorescent light, the luminescence of which is changed by an exothermic heat resulting from an interaction of said hydrogen absorbing material with hydrogen.
A hydrogen detecting system comprising:
- a hydrogen sensor having a substrate with a surface coated with a hydrogen absorbing material and a temperature sensitive luminophore;
- a light source for exciting the temperature sensitive luminophore on the substrate so as to generate a fluorescent light;
- and
- a photo-detector for monitoring the luminescence of the fluorescent light generated from the temperature sensitive luminophore;
- wherein when the hydrogen sensor is exposed to a hydrogen-containing gas, the hydrogen absorbing material interacts with hydrogen and generate heat, which results in a change in luminescence of the fluorescent light, thereby permitting detection of hydrogen in the gas.
2 more elements
A method of detecting hydrogen, comprising:
- preparing a hydrogen sensor having a substrate with a surface coated with a hydrogen absorbing material and a temperature sensitive luminophore;
- irradiating the surface of the substrate to excite the temperature sensitive luminophore on the substrate to generate a fluorescent light;
- exposing the surface of the substrate to a hydrogen-containing gas for a predetermined time so as to permit the hydrogen absorbing material to interact with hydrogen and to generate heat thereby;
- and
- monitoring a change in luminescence of the fluorescent light in response to the heat resulting from the interaction of the hydrogen absorbing material and hydrogen.
2 more elements
Dependencies are inferred from the claim text.