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Preparation method of carbon-coated ceria hollow sphere
Preparation method of carbon-coated ceria hollow sphere
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机译:碳包覆二氧化铈空心球的制备方法
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摘要
The present disclosure discloses a method of preparing a carbon-coated ceria hollow sphere, which includes the following steps of: S110, dispersing silica in a solvent to obtain a silica dispersion; S120, performing a hydrothermal reaction between the silica dispersion and a cerium salt to obtain a ceria-coated silica microsphere; S140, coating the ceria-coated silica microsphere with a carbon source to obtain a primary product, wherein the carbon source is dopamine; S160, sintering the primary product under a protective gas atmosphere to obtain a carbon-coated ceria microsphere; and S170, etching the carbon-coated ceria microsphere by using an etchant to obtain a carbon-coated ceria hollow sphere.
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机译:本发明公开了一种制备碳包覆的二氧化铈空心球的方法,该方法包括以下步骤:S 110 B>,将二氧化硅分散在溶剂中以获得二氧化硅分散体。 S 120 B>,在二氧化硅分散液和铈盐之间进行水热反应,得到氧化铈包覆的二氧化硅微球。 S 140 B>,用碳源涂覆二氧化铈包覆的二氧化硅微球,得到初级产物,其中碳源为多巴胺; S 160 B>,在保护性气体气氛下烧结初级产品,得到碳包覆的二氧化铈微球;和S 170 B>,通过使用蚀刻剂蚀刻碳包覆的二氧化铈微球以获得碳包覆的二氧化铈中空球。
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