Construction of Electrospun ZnO-NiO Nanofibers for Enhanced Ethanol Gas Sensing.

ABSTRACT: Semiconducting metal oxides with nanofiber (NF) morphologies are among the most promising materials for the realization of gas sensors. In this study, we have prepared electrospun ZnO-NiO composite NFs with different amounts of NiO (0, 20, 40, 60 and 80% wt%) for the systematic study of ethanol gas sensing. The fabricated composite NFs were annealed at 600 °C for crystallization. Based on characterization studies, NFs were produced with desired morphologies, phases, and chemical compositions. Ethanol gas sensing studies revealed that the sensor with 40 wt% NiO had the highest response (3.6 to 10 ppm ethanol) at 300 °C among all gas sensors. The enhanced gas response was ascribed to the formation of sufficient amounts of p-n NiO-ZnO heterojunctions, NFs' high surface areas due to their one-

SUBMITTER: Bonyani M 

PROVIDER: S-EPMC11644565 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature