Аннотация:The detection of volatile organic compounds (VOCs), such as acetone, ethanol or formaldehyde is a relevant practical task [1]. Enhanced sensitivity towards such gases has been reported periously for ZnO based nanomaterials, modified with Co3O4 phase [1-3]. However, the reported techniques of such nanocomposites fabrication are usually involve several stages, are time and labor consuming and barely scalable [1-5].
In this work we demonstrate facile single step synthesis and improved sensitivity towards wide range of gases in dry and humid air conditions of ZnO-Co3O4 nanocomposites. Long term stability of obtained nanoparticle materials gas sensor response is demonstrated.