Process for producing flower shaped indium hydroxide powder having high specific surface area
A high specific surface area, indium hydroxide technology, applied in chemical instruments and methods, inorganic chemistry, gallium/indium/thallium compounds, etc., to achieve good application prospects, high specific surface area, and size controllable effects
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[0020] Example 1:
[0021] Prepare 80 mL of an aqueous solution of indium chloride inorganic salt with a molar concentration of 0.01 mol / L, add 0.0008 mol of surfactant sodium lauryl sulfate, and then add 0.004 mol of urea as an alkali source. After sonication for several minutes, the mixed solution was put into a 100 mL stainless steel reaction kettle lined with polytetrafluoroethylene, sealed, and reacted under low temperature hydrothermal at 90°C for 12 hours. Take it out, cool to room temperature, wash the filtered precipitate with a 1:1 mixed solution of ethanol and water in volume ratio, centrifuge for precipitation, and dry at 80°C to obtain flower-like indium hydroxide powder. The obtained powder BET is 38m 2 / g, XRD diffraction shows that the orientation is mainly along the [100] direction, and the amount of InOOH is 8%. Such as figure 1 Shown.
Example Embodiment
[0022] Example 2:
[0023] Prepare 80 mL of an indium chloride aqueous solution with a molar concentration of 0.1 mol / L, add 0.008 mol of sodium lauryl sulfate and 0.048 mol of urea. The reaction temperature is 95℃, the reaction time is 18h, and the BET is 31m. 2 / g, flower-shaped indium hydroxide powder containing 10% InOOH. The rest is the same as in Example 1. Such as figure 2 Shown.
Example Embodiment
[0024] Example 3:
[0025] Prepare 80 mL of 0.2mol / L indium nitrate aqueous solution, add 0.032mol sodium lauryl sulfate and 0.112mol urea. The reaction temperature is 105℃, the reaction time is 24h, and the BET is 23m. 2 / g, flower-shaped indium hydroxide powder containing 11% of InOOH. The rest is the same as in Example 1. Such as image 3 Shown.
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