| 纳米晶Mg-Al水滑石的水热合成及微结构表征 |
| Nano Mg-Al LDHs: Hydrothermal Synthesis and Microstructural Characterization |
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| 摘要: |
| 关键词: Mg-Al水滑石 纳米晶 水热合成 X-射线全谱拟合法 间层结构 |
| 基金项目: |
| Abstract: Nano Mg-Al LDHs were prepared from precursors of MgO and Al(OH)3 using a hydrothermal method in one step and the microstructural features were characterized by powder XRD and SEM. Crystallite sizes were determined by X-ray whole powder pattern fitting method. Effects of synthesis temperatures and alkalinity on phases formation、crystallinity and crystallite sizes of Mg-Al LDHs were investigated. Crystallite form evolved from thin plates to thick plates as the hydrothermal synthesis temperature increases. Layers of interlayer containing OH- and CO32- were distributed orderly or disorderly depending on the the starting alkalinity of the precursors along the c axis resulting in an interstratified Mg-Al LDHs structure. |
| Keywords: nano Mg-Al LDHs hydrothermal synthesis whole powder XRD pattern fitting interstratified structure |
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| 王永在.纳米晶Mg-Al水滑石的水热合成及微结构表征[J].无机化学学报,2007,23(6):1055-1058. |
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