Selective ethanol gas sensing behavior of mesoporous n-type semiconducting FeNbO4 nanopowder obtained by niobium–citrate process
作者： C. Balamurugan , A.R. Maheswari , D.W. Lee , A. Subramania
DOI: 10.1016/J.CAP.2013.11.052
关键词: Mesoporous material 、 Mesoporous organosilica 、 Thermal stability 、 Mesoporous silica 、 Thermogravimetric analysis 、 Monoclinic crystal system 、 Transmission electron microscopy 、 Particle size 、 Analytical chemistry 、 Materials science
摘要: Abstract Beyond the most investigated mesoporous silica and carbon based materials, metal oxides have attracted considerable interest due to their more diverse electronic functionality, which includes gas sensing activities, semiconductor characteristics magnetic properties. In this paper, we describe fabrication, characterization application of FeNbO4 nanopowder for ethanol application. was synthesized via niobium–citrate complex method, without using any surfactant size selection medium. Thermal stability structure analyzed by thermogravimetric analysis (TG/DTA) X-ray diffraction (XRD). Structural confirmed formation with monoclinic structure. The particle size, electrical optical properties were also systemically means transmission electron microscopy (TEM), impedance diffused reflectance spectra. Nitrogen adsorption isotherms type IV hysteresis loops H3 indicating well-defined pore nature. such as sensitivity, operating temperature response time, studied in presence (C2H5OH). Experimental result that a higher at relatively lower 200 °C.
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