期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 120, 期 1, 页码 266-269出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2006.02.018
关键词
sensor; hydrogen; film; sol-gel
Solid-state potentiometric thin film hydrogen gas sensors were successfully prepared using high proton-conducting P2O5-SiO2 glass films. A sol-gel method was used to deposit the glass films with conductivity of similar to 10 mS/cm at room temperature. Platinum and manganese oxide thin films, deposited on the both side of the glass film, were used for the reference electrodes and the electromotive force (EMF) was measured between the electrodes. The EMF was linearly changed with the hydrogen concentration ranging from 0.1% to 4% in air or argon gas. Fast time response within similar to 10 s was obtained at 30 degrees C. It was also confirmed that the sensor exhibited high sensibility at low temperature such as -30 degrees C. (c) 2006 Elsevier B.V. All rights reserved.
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