Synthesis and characterization of Sb–SnO2/kaolinites nanoparticles
Source abstract
Abstract
In this paper, we reported the synthesis of composite conductive powders of antimony-doped tin oxide (Sb–SnO 2 ) coated onto kaolinite. Structure and morphology of the samples were systematically characterized by X-ray diffraction (XRD), scanning electronic microscopy (SEM), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), Fourier transform infrared (FTIR) and X-ray photoelectron spectrum (XPS). The results showed that Sb–SnO 2 nanoparticles (< 10 nm) were successfully coated as thin layers on the surface of kaolinite. The antimony-doped tin oxide/kaolinite (ATK) composites retained the flake morphology like the original kaolinite and had a resistivity of 273.2 Ω·cm. Sb–SnO 2 layers were proved to attach to the kaolinite surface via the Sn–O–Si or Sn–O–Al bonds. The growth mode of Sb–SnO 2 layers onto the kaolinite was investigated.
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Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Electrical and Thermal Properties of Materials · Electronic and Structural Properties of Oxides
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