CO2sensing properties of electro-spun Ca-doped ZnO fibres

• DOI: 10.1088/1361-6528/aac27c
• Publication Date: 2018-05-04T11:15:19Z
• Authors: Fabiola Pantò; Salvatore Gianluc...; Enza Fazio; Patrizia Frontera; Anna Bonavita; Giovanni Neri; Pierluigi Antonucci; Fortunato Neri; Saveria Santangelo
• Keywords: Wurtzite crystal structure

The availability of low-cost, high-performing sensors for carbon dioxide detection in the environment may play a crucial role reducing CO2 emissions and limiting global warming. In this study, calcium-doped zinc oxide nanofibres with different Ca to Zn loading ratios (1:40 or 1:20) are synthesised via electro-spinning, thoroughly characterised and, first time, tested as an active material dioxide. results their characterisation show that highly porous fibres consist interconnected grains hexagonal wurtzite structure zincite. Depending on Ca:Zn ratio, calcium fully partly segregates form calcite fibre surface. high response sensor based highest Ca-doping level can be attributed synergy between morphology basicity Ca-ion sites, which favour diffusion gas molecules within sensing layer adsorption, respectively.