Promising methane-sensing characteristics of hydrothermal synthesized magnesium zinc ferrite hollow spheres

We have synthesized hollow magnesium zinc ferrite (Mg0.5Zn0.5Fe2O4) spheres via a spherical carbon template-mediated hydrothermal synthesis route. The phase formation behavior, microstructure evaluation and methane-sensing characteristics of the synthesized hollow spheres have been investigated. The promising methane-sensing characteristics (i.e. per cent response, response and recovery time) identified for Mg0.5Zn0.5Fe2O4 hollow sphere-based sensing elements are attractive for developing chemoresistive-type non-conventional complex oxide-based combustible gas sensors.