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西瓜皮09

木虫 (正式写手)

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投射电镜是少不了的啦。我也马上要做，多交流。

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11楼2007-10-10 05:32:24

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一只小虫子

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lzw7210(金币+1,VIP+0):gang xie le ,tai xiexie le

你可以看看这篇文献是用柠檬酸三钠做的

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12楼2007-10-10 11:32:47

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一只小虫子

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看看这篇吧用柠檬酸三钠做的

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13楼2007-10-10 11:34:46

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fanhbu

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这个容易，看KOTOV 的Chem. Mater. 2000, 12, 2676-2685。
Citrate-stabilized CdSe nanocrystals were prepared according
to the following procedure: To 45 mL of water were added
0.05 g sodium citrate and 2 mL of 4 10-2 M cadmium
perchlorate and the pH was adjusted to 9.0 by 0.1 M NaOH.
The solution was bubbled with nitrogen for 10 min, 2 mL of 1
10-2MN,N-dimethylselenourea was added, and the mixture
was heated in a conventional 900 W (Sharp) microwave oven
for 50 s. The final volume of the solution after heating was ca.
40 mL. In the recipe described above, the Cd:Se molar ratio
was 4:1, which leads to CdSe nanoparticles with ca. 4.0 nm
diameter; by increasing the Cd concentration it is possible to
synthesize smaller CdSe nanocrystals.
简单实用

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14楼2007-10-11 12:34:26

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