论文部分内容阅读
The stable and crystalline phase of pure nanostructured CeO2 was directly synthesized by flame-assisted spray pyrolysis and solid state diffusion route. Different characterization techniques, including X-ray diffraction(XRD), scanning electron microscopy(SEM), Fourier transform infrared spectroscopy(FTIR), ultraviolet–visible(UVVis), and thermo gravimetric analysis(TGA) were employed to examine the structural, morphological, optical, and thermal properties of the final product. Similarly, the comparative carbon dioxide(CO2)-sensing response of as-synthesized Ce O2 nanoparticles by both routes was also reported. The CeO2 nanoparticles synthesized by solid state diffusion method exhibit good sensitivity(3.38 %) at room temperature,low operating temperature(398 K), fast response time(32 s),and recovery time(36 s) along with good stability.
The stable and crystalline phase of pure nanostructured CeO2 was directly synthesized by flame-assisted spray pyrolysis and solid state diffusion route. Different characterization techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy ), ultraviolet-visible (UVVis), and thermo gravimetric analysis (TGA) were employed to examine the structural, morphological, optical, and thermal properties of the final product. Similarly, the comparative carbon dioxide (CO2) synthesized Ce O2 nanoparticles by both routes was also reported. The CeO2 nanoparticles were synthesized by solid state diffusion method exhibits good sensitivity (3.38%) at room temperature, low operating temperature (398 K), fast response time (32 s), and recovery time (36 s) along with good stability.