Thick-film hydrogen sensor

✍ Scribed by V.N. Mishra; R.P. Agarwal

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 369 KB
• Volume: 21
• Category: Article
• ISSN: 0925-4005
• DOI: 10.1016/0925-4005(94)01242-3

✦ Synopsis

A thick-film SnO,-based hydrogen gas sensor has been developed The fabrgcated device IS found to be very sensltwe for hydrogen gas and 1s capable of detecting hydrogen m the order of a few ppm (< 100) concentration The effects of temperature and the amount of catalytic palladmm dopmg m SnOz towards the hydrogen sensitivity of the sensor have been studled The peak sensltlvlty of the sensor towards hydrogen IS found to be at an operatmg temperature of 350 "C and the optimum cata&& content m the SnO, layer 1s 0 25 wt % palladmm A possible reaction scheme for the mterachon of hydrogen wltb the SnOz surface m au IS also proposed m Hydrogen sensor, Thxk-film sensor