High-performance carbon monoxide gas sensor based on palladium/tin oxide/porous graphitic carbon nitride nanocomposite
作者： S. Absalan , Sh. Nasresfahani , M.H. Sheikhi
DOI: 10.1016/J.JALLCOM.2019.04.187
关键词: Tin oxide 、 Nanoparticle 、 Nanocomposite 、 Graphitic carbon nitride 、 Materials science 、 Palladium 、 Fourier transform infrared spectroscopy 、 Carbon monoxide 、 Chemical engineering 、 Spectroscopy
摘要: Abstract The palladium (Pd)/tin oxide (SnO2)/porous graphitic carbon nitride (g-C3N4) nanocomposites with different Pd and g-C3N4 contents were synthesized by a facile hydrothermal route their applications as efficient monoxide (CO) gas sensors investigated. These characterized in detail X-ray diffraction, Fourier transform infrared spectroscopy (FTIR), micrograph techniques (FESEM TEM), energy dispersive (EDS), order to evaluate structural morphological properties. On the basis of FESEM TEM analysis, two-dimensional porous nanosheets provided large surface area suitable for growth SnO2 nanoparticles formation heterogeneous nanocomposite. Among weight ratios components Pd/SnO2/g-C3N4 nanocomposites, 5%Pd/SnO2/5%g-C3N4 exhibited excellent CO sensing characteristics such high response, short response/recovery times, good selectivity stability at lower operating temperature 125 °C. outstanding performance these could be attributed g-C3N4, strong spillover effect well g-C3N4/SnO2 heterojunction.
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