Год выпуска: 2014 Автор: Pravin Sadashiv More and Pravin Walke Издательство: LAP Lambert Academic Publishing Страниц: 148 ISBN: 9783659542411 Описание Environmental Pollution is a global issue. Over the last decade the demand for accurate and dedicated sensors to provide precise value of species to be monitored and control the environmental pollution have accelerated efforts for the development of new sensing material and technologies. The most important, hazardous and very common pollutant gases are CO and CO2, H2, which are produced partly by natural decays, and more by industries and other man made burning processes. SnO2, is the most extensively studied oxide while Al2O3, BaTiO3. The other oxides like ZnO, ZrO2, TiO2, MoO2, MnO3, Fe2O3, etc are also reviewed in this context. SnO2, Al2O3, and BaTiO3 are sensitive to many gases but their selectivity is poor. Therefore the selectivity (to CO, H2) may be obtained by proper choice of dopants, operating temperature or some such technique like neural network. The present book gives an overview regarding development of gas sensors based on three metal semiconducting oxides SnO2,... |