Preparation method of dual-phase coexistence one-dimensional structure tin dioxide
A tin dioxide, dimensional structure technology, applied in tin oxide, nanotechnology for materials and surface science, nanotechnology, etc., can solve problems such as few reports, achieve low equipment requirements, high product purity, and reaction process. Easy-to-control effects
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Embodiment 1
[0032] ① Weigh 1.96 g of oxalic acid, add 10 ml to the mixed solution of polyethylene glycol and ethanol (V 聚乙二醇 :V 乙醇 =1.3:1.5), using 300 rpm magnetic stirring to dissolve to obtain a clear solution;
[0033] ② Seal the above clarified solution and heat treat it at 50°C for 24 hours;
[0034] ③ Take out the mixture and stir it magnetically at 300 rpm for 30 minutes at room temperature;
[0035] Add 0.55 g of stannous chloride to the above mixed solution, keep magnetic stirring at 300 rpm, then slowly add distilled water therein until a white turbid solution is formed, and continue to stir for 15 minutes;
[0036] ⑤ The above-mentioned white turbid liquid is sealed and heat-treated at 50°C for 24 hours. Take out the white cloudy liquid and cool to room temperature;
[0037] ⑥ Centrifuge the obtained white turbid liquid at 8000 rpm to obtain a white precipitate, alternately wash the white precipitate with ethanol and distilled water for 5 times, put it in an incubator a...
Embodiment 2
[0040] The resulting intermediate was heat-treated at 275°C for 24 hours and then cooled to room temperature with the furnace to obtain a one-dimensional structure of tin dioxide with a two-phase coexistence with an orthorhombic phase content of 13.1% (see figure 1 , see the description image 3 ).
Embodiment 3
[0042] The resulting intermediate was heat-treated at 350°C for 24 hours and then cooled to room temperature with the furnace to obtain a one-dimensional structure of tin dioxide with a two-phase coexistence with an orthorhombic phase content of 20.1% (see figure 1 , see the description Figure 4 ).
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