Preparation of In₂O₃/MWCNTs Nanocomposites and their Gas-Sensing Property to Ethanol

Abstract

In2O3/multi-walled carbon nanotube (MWCNT) nanocomposites containing different MWCNT contents were synthesized via direct growth of In2O3 nanoparticles on the functionalized MWCNTs. The nanocomposites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results exhibited that In2O3 nanoparticles with a diameter of approximate 10 nm were densely decorated on the surface of the MWCNTs. The gas sensitive performance of the nanocomposites to ethanol was also investigated. It was found that In2O3/MWCNTs sensor showed much higher response than that of the pure In2O3 sensor. Moreover, the sensing mechanism was discussed.

Effects of rare earth element doping on the ethanol gas-sensing performance of three-dimensionally ordered macroporous In2O3

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Indium Oxides and Related Indium‐based Photocatalysts for Water Treatment: Materials Studied, Photocatalytic Performance, and Special Highlights

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