Conference

Metal oxide nanostructures are well-known for their superior gas sensing properties. The partial oxidation of MXene nanosheets facilitate the formation of MXene supported metal oxides, wherein the inherent electrical conductivity and two-dimensional morphology of MXenes were only slightly affected. This kind of hybrid structures are advantageous for exhibiting enhanced gas sensing performance, because MXene nanosheet can act as highly conducting network while metal oxide nanostructures decorating on it can act as gas interaction sites. In this study, we tailored the morphology of metal oxide (TiO2) grown on MXene (Ti3C3Tx) nanosheets from nanoplate to spherical nanoparticle through controlling the degradation conditions of MXene nanosheets. Further, the gas sensing properties of developed metal oxide/MXene hybrid structures are investigated. The gas sensing performance of hybrid structures are clearly sensitive to the morphology of metal oxide grown on MXene nanosheets.

Keywords: MXene, oxidation, morphology, gas sensing