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wuyao118金虫 (小有名气)
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[求助]
微纳米材料类专业，请教高手翻译一段话，论文中急需，谢谢！
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随着反应温度的升高，[Y(en)2]2+被分解成乙二胺和Y离子，乙二胺与二硫化碳发生反应(2)(CS2能通过油膜)，释放的Y离子与反应(3)所产生的H2S在水核界面反应生成X晶核，从而导致了Y空心微米球的形成，形成过程可以用图3-7表示。由于不同晶面的表面自由能不同，晶核会优先向相同的方向生长，形成Y纳米片[54]。这些纳米片吸附在水核表面并自组装成刺猬状空心微米球，从而降低其表面自由能，形成最稳定的结构. 图3-6c, d是从Y微米球及构成Y微米球的纳米片上分别选取一部分所得到的HRTEM图，由图可知，构成微球的纳米片相互交错，构成了刺猬状的Y结构。从图中还可以看出非常清晰的X纳米片晶格条纹，其晶面间距0.32 nm，与Y的(100)晶面间距的数值一致，纳米片沿垂直于(0001)面的方向生长 |
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287685166
金虫 (正式写手)
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wuyao118(金币+15, 翻译EPI+1): 2011-05-07 20:56:22
| With the reaction temperature elevating, [Y (en) 2] 2 + is broken down into ethylenediamine and Y ion, then ethylenediamines react with carbon disulfide (2) (CS2 can pass through the oil film), however, Y ions react with H2S which is generated by reaction(3)to furnish X crystal nucleus on the interface between water and nucheus, which leads to the formation of the hollow microsphere, the formation process is shown in figure 3-7. Due to the different surface free energy of different crystal surface, the crystal nuclus tends to grow in the same direction. Finally, the Y nano piece will be formed. [54]These nano pieces can absorpt to the interface between water and nucleus. They can also self-assemble into hedegehog shape hollow microsphere. Thereby their surface free energy is reduced, and the most stable structure is formed. |
2楼2011-05-06 18:44:22
287685166
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wuyao118(金币+15): 2011-05-07 20:56:30
| Fig. 3-6c,d are HRTEM graphs selected partly from Y microsphere and nano pieces which can constitutes microsphere, as is shown in the graph, nano pieces pass across each other and a hedgehog shape Y structure is fromed. We can see the crystal lattice stripes clearly from the graph, and its interplaner spacing is measured to be 0.32 nm, which is concordent with the interplaner spacing along to (100) of Y. Nano pieces grow along the directon that is perpendicular (0001) face. |
3楼2011-05-07 15:45:21
287685166
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★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
wuyao118(金币+25): 2011-05-07 20:56:40
sltmac(金币+25): 欢迎常来~~ 2011-05-11 17:35:53
wuyao118(金币+25): 2011-05-07 20:56:40
sltmac(金币+25): 欢迎常来~~ 2011-05-11 17:35:53
|
With the reaction temperature elevating, [Y (en) 2] 2 + is broken down into ethylenediamine and Y ion, then ethylenediamines react with carbon disulfide (2) (CS2 can pass through the oil film), however, Y ions react with H2S which is generated by reaction(3)to furnish X crystal nucleus on the interface between water and nucheus, which leads to the formation of the hollow microsphere, the formation process is shown in figure 3-7. Due to the different surface free energy of different crystal surface, the crystal nuclus tends to grow in the same direction. Finally, the Y nano piece will be formed. [54]These nano pieces can absorpt to the interface between water and nucleus. They can also self-assemble into hedegehog shape hollow microsphere. Thereby their surface free energy is reduced, and the most stable structure is formed. Fig. 3-6c,d are HRTEM graphs selected partly from Y microsphere and nano pieces which can constitutes microsphere, as is shown in the graph, nano pieces pass across each other and a hedgehog shape Y structure is fromed. We can see the crystal lattice stripes clearly from the graph, and its interplaner spacing is measured to be 0.32 nm, which is concordent with the interplaner spacing along to (100) of Y. Nano pieces grow along the directon that is perpendicular (0001) face. |
4楼2011-05-07 15:46:40
