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phyweiw
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When temperature gets lower, the nucleating speed of ZnO particles becomes higher. But the growing speed is greatly affected and consequently, the amount of the synthesized particles increases with comparatively small particle size. Influenced by higher temperature, the Brown movement is accelerated and the probability of the ionic collision increases. Though the nucleation speeded up, the increase of growth speed is more prominent. Therefore, the bigger sized particles are formed due to the increase in particle diameter. ΪÄãÒåÎñ°ï棬л¾ø½ð±Ò! |
4Â¥2009-11-08 21:19:58
phyweiw
Ìú¸Ëľ³æ (ÖøÃûдÊÖ)
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2Â¥2009-11-08 21:09:14
lyta0
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3Â¥2009-11-08 21:10:14
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5Â¥2009-11-08 21:33:16














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