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高兴星期五铁杆木虫 (著名写手)
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通过分析认为，β-CD和PVA作为模板时，形成特殊形貌碳酸镧的机理是相同的，都是碳酸镧在特定基团上吸附、成核、生长，高温时，不同碳酸镧晶面的表面能差异增大，使晶体沿一维方向生长；棉花作为模板时，棉花本身的结构为晶体的生长提供了一个有效的中心，晶体就在这个有效的中心内形成，生成特定形貌的碳酸镧。 添加有机物时制备的碳酸镧均比不添加有机物制备的磷结合效果好 |
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2楼2010-06-02 00:23:55
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高兴星期五(金币+40, 翻译EPI+1):还有一句话没反应，这段话下面的那句，非常感谢 2010-06-02 09:15:03
wypward(金币+1):欢迎新虫 2010-06-02 12:51:29
高兴星期五(金币+40):谢谢啦，O(∩_∩)O~ 2010-06-03 08:50:05
高兴星期五(金币+40, 翻译EPI+1):还有一句话没反应，这段话下面的那句，非常感谢 2010-06-02 09:15:03
wypward(金币+1):欢迎新虫 2010-06-02 12:51:29
高兴星期五(金币+40):谢谢啦，O(∩_∩)O~ 2010-06-03 08:50:05
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The analysis indicates that, when β-CD and PVA were used as templates, the formation of the lanthanum carbonate with particular morphologies has the same mechanism. For both cases, the lanthanum carbonate adsorbs, nucleates, and grows on specific radicals. At high temperatures, the difference in the energies of different surfaces of the lanthanum carbonate increases, leading to a one-dimensional growth. When the cotton was used as the template, the structural features of the cotton itself provide effective growth centers for the crystals, which form in the effective growth centers, leading to the lanthanum carbonate of particular morphologies. The lathanum carbonate prepared with organic compounds has better "phosphor-binding" effects than that prepared without organic compounds. Note: not sure about 磷结合效果. [ Last edited by mingxing on 2010-6-2 at 22:03 ] |
3楼2010-06-02 00:44:38
| Through analysis, β-CD and PVA as a template to form a special morphology of the mechanism of lanthanum carbonate is the same, are lanthanum carbonate group on a specific adsorption, nucleation, growth, high temperature, different crystal planes of lanthanum carbonate surface energy difference increase, so that crystal growth along one dimension; cotton as a template, the cotton itself, the growth of the crystal structure provides an effective center of the crystal in the center to form an effective, generating a specific topography of the carbonate La. |
4楼2010-06-02 00:55:08