Silica powder coated with passivating layer on surface and passivation processing method of silica powder
A surface covering and passivation technology, applied in chemical instruments and methods, silicon, inorganic chemistry, etc., can solve problems such as large specific surface area and silicon powder oxidation, and achieve the effect of reducing oxidation and good storage.
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[0039] Embodiment 1. A silicon powder covered with a passivation layer on the surface, wherein the surface of the silicon powder is covered with a dense passivation layer, and the passivation layer is silicon dioxide.
Example Embodiment
[0040] Embodiment 2. The silicon powder whose surface is covered with a passivation layer, wherein the thickness of the dense passivation layer is 1 nanometer. The rest is the same as in Example 1.
Example Embodiment
[0041] Embodiment 3. The silicon powder whose surface is covered with a passivation layer, wherein: the thickness of the dense passivation layer is 2 nanometers. The rest is the same as in Example 1.
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