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ÎÒµÄһƪÎÄÕÂÖеÄÒ»¾ä»°,Éó¸åÈ˽ÐÎÒ½âÊÍΪʲô?Ò²¾ÍÊÇÆä»úÀíÊÇʲô?ÎÒ²»»á½âÊÍ,Çë¸ßÈËÖ¸µã! "Usually, spherical shapes are formed because the nucleation rate per unit area is isotopic at the interface between the Fe3O4 magnetite nanoparticles." Why should the interface between particles relevant to isotopic nucleation? |
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ahulws(½ð±Ò+2,VIP+0):ºÜÒź¶ÄãûÓаïÎÒ½âÊÍ»úÀí!²»ÖªÓÃOstwald ripeningÀíÂÛÊÇ·ñ¿ÉÒÔ? 12-17 16:05
ahulws(½ð±Ò+2,VIP+0):ºÜÒź¶ÄãûÓаïÎÒ½âÊÍ»úÀí!²»ÖªÓÃOstwald ripeningÀíÂÛÊÇ·ñ¿ÉÒÔ? 12-17 16:05
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There is no evidence that spherical shapes are formed when the nucleation rate per unit area is isotopic at the interface between the Fe3O4 magnetite nanoparticles. Maybe you want to explain why the nanoparticle is spherical, which is what you observed in only your experiment. However, it is possible that the nanoparticle is not spherical. In fact, there is no such mechanism as I know as so far. It is suggested that you should refer it to your supervisor or your colleague. |
4Â¥2009-12-17 11:01:21
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ahulws(½ð±Ò+1,VIP+0):Òź¶µÄÊÇÄãûÓÐÖ±½Ó»Ø´ðÎÒµÄÎÊÌâ! 12-17 16:03
ahulws(½ð±Ò+1,VIP+0):Òź¶µÄÊÇÄãûÓÐÖ±½Ó»Ø´ðÎÒµÄÎÊÌâ! 12-17 16:03
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ahulws(½ð±Ò+3,VIP+0):лл! 12-18 15:08
ahulws(½ð±Ò+3,VIP+0):лл! 12-18 15:08
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The following should give you some help: [1]ºÂ±£ºì, »Æ¿¡»ª. ¾§ÌåÉú³¤»úÀíµÄÑо¿×ÛÊö. ±±¾©Ê¯ÓÍ»¯¹¤Ñ§ÔºÑ§±¨, 2006, 14(2):58. [2]Sang-Min Lee, Sung-Nam Cho, Jinwoo Cheon. Anisotropic Shape Control of Colloidal Inorganic Nanocrystals. Adv Mat, 2003, 15,441. [3]Z.Adam Peng, Xiaogang Peng. Mechanisms of the Shape Evolution of CdSe Nanocrystals. J Am Chem Soc,2001,123,1389. [4]Liberato Manna, Erik C. Scher, A. Paul Alivisatos. Shape Control of Colloidal Semiconductor Nanocrystals. Journal of Cluster Science, 2002, 13(4): 521. |
5Â¥2009-12-18 09:26:37













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