The effect of annealing temperature on gas sensing response of non-stoichiometric manganese oxide IV

Abstract

Layers of non-stoichiometric manganese dioxide are obtained and their gas-sensing responses are studied. The temperature range of isochronous annealing has been determined, in which the obtained layers are highly sensitive to hydrogen sulfide, nitrogen dioxide, ammonia, and toxic organic gases — acetonitrile and phenol. The enhanced selectivity to organic gases by thermal annealing of oxide layers has been established.

Keywords

• manganese dioxide
• isochoric annealing
• gas response