PROJECT TITLE :

Sapphire Fiber Optical Hydrogen Sensors for High-Temperature Environments

ABSTRACT:

This letter presents a high-temperature fiber optical hydrogen sensor with operational temperatures up to 800 °C. The sensor is predicated on one-crystal sapphire fiber coated with Pd nanoparticles incorporated TiO2 nanostructured skinny film. The template-primarily based sol-gel chemistry was applied to synthesize the nanostructured porous skinny films. The sensitivity and response time of the sensor was evaluated for hydrogen concentrations varying from zero.02% to 4%. The effects of temperature on the hydrogen gas sensing properties were investigated from 60zero °C to 80zero °C.


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