CO2 sensing properties of electro-spun Ca-doped ZnO fibres.
作者： Fabiola Pantò , Salvatore Gianluca Leonardi , Enza Fazio , Patrizia Frontera , Anna Bonavita
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摘要: 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.
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