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Abstract <p>The paper studies the synthesis process of nanosized tin dioxide obtained by a combination of direct chemical precipitation and hydrothermal treatment using tin(II) acetate as a precursor. A comparative analysis of the chemical composition, microstructure, and crystal structure of the samples obtained under different conditions is performed. Thus, the thermal behavior of the obtained powders in the temperature range of 25–1000°C was studied using synchronous thermal analysis (TGA/DSC), the set of functional groups in the powders was studied using IR spectroscopy, and X-ray powder diffraction was used to study the crystal structure of the powders and determine the size of the coherent scattering region. Using scanning electron microscopy and transmission electron microscopy, the effect of hydrothermal treatment on the size of primary particles and agglomerates formed on their basis is shown. It was found that during hydrothermal treatment, the primary particles enlarge from 2.2 ± 0.4 nm to 2.6 ± 0.6 nm, while the microstructure of the samples becomes more uniform and the size of the agglomerates decreases from 42 ± 12 nm to 40 ± 8 nm. The morphology of the films formed using the obtained nanopowders was studied using atomic force microscopy (AFM). Within the framework of AFM, Kelvin probe force microscopy (KPFM) was used to construct surface potential distribution maps, as well as to estimate the electron work function from the surface of the materials.</p>

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Synthesis of Nanosized SnO2 via Chemical Precipitation Followed by Hydrothermal Treatment Using Tin(II) Acetate

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • N. A. Fisenko,
  • P. D. Dementieva,
  • N. P. Simonenko,
  • Ph. Yu. Gorobtsov,
  • T. L. Simonenko,
  • E. P. Simonenko

摘要

Abstract

The paper studies the synthesis process of nanosized tin dioxide obtained by a combination of direct chemical precipitation and hydrothermal treatment using tin(II) acetate as a precursor. A comparative analysis of the chemical composition, microstructure, and crystal structure of the samples obtained under different conditions is performed. Thus, the thermal behavior of the obtained powders in the temperature range of 25–1000°C was studied using synchronous thermal analysis (TGA/DSC), the set of functional groups in the powders was studied using IR spectroscopy, and X-ray powder diffraction was used to study the crystal structure of the powders and determine the size of the coherent scattering region. Using scanning electron microscopy and transmission electron microscopy, the effect of hydrothermal treatment on the size of primary particles and agglomerates formed on their basis is shown. It was found that during hydrothermal treatment, the primary particles enlarge from 2.2 ± 0.4 nm to 2.6 ± 0.6 nm, while the microstructure of the samples becomes more uniform and the size of the agglomerates decreases from 42 ± 12 nm to 40 ± 8 nm. The morphology of the films formed using the obtained nanopowders was studied using atomic force microscopy (AFM). Within the framework of AFM, Kelvin probe force microscopy (KPFM) was used to construct surface potential distribution maps, as well as to estimate the electron work function from the surface of the materials.