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- Title
Synthesis and characterization of three-dimensional flower-like tin dioxide-based structures.
- Authors
Zima, T.; Bataev, I.
- Abstract
Three-dimensional flower-like SnO-based structures have been produced by the alkaline hydrothermal treatment of t-SnO powder with no additive and in the presence of aminoterephthalic acid (ATPA). The synthesis products have been characterized by a variety of physicochemical techniques (scanning electron microscopy, transmission electron microscopy, Raman and IR spectroscopies, X-ray diffraction, and others). The results demonstrate that raising the ATPA concentration in the reaction mixture changes the morphology of the materials and leads to the SnO → SnO/SnO → SnO phase transformation in the structures through the formation of SnO nonstoichiometric tin oxide phases with 1 < x < 2. Hydrothermal treatment of the starting reagents in the presence of ≤75 wt % ATPA leads to the formation of hierarchical structures dominated by a nonstoichiometric tin oxide, which is thermally unstable at t ≥ 500°C. The morphology and phase composition of the synthesized structures have been shown to have a significant effect on the electronic conductivity of the material.
- Subjects
NONSTOICHIOMETRIC compounds; CHEMICALS; TRANSMISSION electron microscopy; ELECTRON microscopy; ALKALINE earth compounds
- Publication
Inorganic Materials, 2017, Vol 53, Issue 12, p1279
- ISSN
0020-1685
- Publication type
Article
- DOI
10.1134/S0020168517120196