| SiO2包覆超细CaCO3的微晶分析和XPS研究 |
| Minicrystal and XPS Analysis of SiO2 coated superfine CaCO3 Powder |
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| 摘要: |
| 关键词: XPS XRD 超细 CaCO3 包覆 SiO2 |
| 基金项目: |
| Abstract: The superfine CaCO3 powder coated with SiO2 was synthesized. Through XRDtechnique, the cell parameters and crystallite size of reference and coated CaCO3 were calculated. SiO2 present in the state of amorphous and prevent the agglomeration and growth of CaCO3 micro-crystal. By comparing the result of XPSanalysis of reference compound to coated sample, CaCO3 has been coated successfully with SiO2. The thickness of the coating is about 2.4～3.4nm. From the difference(0.8eVincrease) of the binding energy of Ca2p, we presume that the bind Si-O-Ca has formed in the surface of CaCO3. |
| Keywords: XPS XRD superfine CaCO3 coated SiO2 |
| 投稿时间：2000-08-05 修订日期：2000-09-26 |
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| 华益苗,袁骏,岳林海,蔡菊香.SiO2包覆超细CaCO3的微晶分析和XPS研究[J].无机化学学报,2001,17(1):134-138. |
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