In recent years

considerable attention has been paid to the research and development of chemical sensors based on solid proton conductor electrolytes.Some proton conductors such as solid polymer membrane

zirconium phosphate

antimonic acid and so on

kept relatively high ionic conductivity even at room temperature. In this paper

this type proton conductor sensors for detecting combustible gases of H2

CO and C2H4 at room temperature were fabricated and studied. We here described their structures

sensing mechanisms and performances. The effects of the temperature

humidity

catalytic electrode materials and preparation method of composite electrode on the sensor response were also discussed.These sensors will be extensively applied to the petrochemical industry

environmental protection and daily life.