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xjx11228

木虫 (正式写手)

[交流] 【求助】Co3O4 纳米粒子的合成

求助:请问有没有低温水热法合成Co3O4 纳米粒子的好方法,而且水溶性还行?我看了一下文献,大多是在高温或是高压釜中进行,而我们实验室没有这方面的条件,。
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linyunyan

金虫 (小有名气)

呼啦

★
xjx11228(金币+1,VIP+0):谢谢参与,文献出处? 11-5 09:56
CoCl2•6H2O (0.7138 g, 3 mmol) was dissolved in EG (24 mL) to form a transparent solution, and then sodium acetate (CH3COONa, NaAc) (2.16 g) and polyethylene glycol 200 (PEG200) (0.6 g) were added into the above solution. The mixed solution was stirred and gradually became transparent, and then sealed in a Teflon-lined stainless-steel autoclave (30 mL capacity). The autoclave was heated to and maintained at 180 °C for 12 h, and allowed to cool to room temperature. The peach products were collected and rinsed more than five times by ethanol, and dried at 60 °C for 5 h, which was the intermediate complex of Co3O4 hollow microspheres. After the peach product was annealed at 500 °C for 20 min, Co3O4 hollow microspheres were obtained.
8楼2009-10-27 19:47:50
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csuliu3976

金虫 (正式写手)

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xjx11228(金币+1,VIP+0):有这份心思,难能可贵,只是路途遥远,不方便。 10-23 15:50
我们这里有设备,可以租给你用
2楼2009-10-23 14:37:40
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wrf3874

至尊木虫 (正式写手)

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xjx11228(金币+1,VIP+0):感谢参与。不过,固体是纳米级吗? 10-23 15:48
先用水合肼还原钴盐(40、50度即可),再过滤,100度鼓风干燥12小时即可得到氧化钴粉末。
3楼2009-10-23 14:57:55
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xjx11228

木虫 (正式写手)

没有这方面的牛人来,唉,有点遗憾。
4楼2009-10-24 12:37:59
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