Effect of Pr/Zn on the anti-humidity and acetone-sensing properties of Co₃O₄ prepared by electrospray.

ABSTRACT: Co₃O₄ is a P-type metal-oxide semiconductor which can realize acetone detection at a lower temperature, but the lower working temperature brings the enhanced humidity effect. In order to solve the problem of a Co₃O₄ gas sensor being easily affected by humidity, an acetone-sensing material of Co₃O₄ mixed with Pr/Zn was prepared by electrospray in this work. The optimal working temperature of Pr/Zn-Co₃O₄ is 160 °C, and the detection limit can reach 1 ppm. The fluctuation of the acetone response is about 7.7% in the relative humidity range of 30-90%. Compared with pure Co₃O₄, the anti-humidity property of this material is obviously enhanced, but the gas-sensing response deteriorates.

SUBMITTER: Fan X 

PROVIDER: S-EPMC9251733 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature