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[求助]
三乙胺在纳米颗粒合成中的作用
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Preparation and characterization of nano cobalt oxide 文献中，给出了制备Co3O4纳米颗粒的方法，方法二原文如下： Cetyl trimethyl ammonium bro-mide (CTAB) was added to a solution of cobalt nitrate so that the molar ratio CTAB:Co was 0.2. The solution was kept at 75 C for 30 min and then triethylamine(TEA) in a molar ratio TEA:Co equal to 2 was rapidly added under vigorous stirring. A blue precipitate occurred and the mixture was aged under reflux for 10 h. The dark brown solid obtained was centrifuged and washed with ethanol, then dried at 120 ℃over night and calcined at 300 or 450 ℃for 2 h. 其中用到了三乙胺，这起了什么作用？是作为催化剂？还是催化剂兼稳定剂作用？ 然后生成Co3O4的反应应该是什么样的？然后这种制备方法算不算是水热合成？求教  [ 来自科研家族 木虫催化 ] |
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16楼2012-10-18 23:13:17
lanmao630
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2楼2012-10-16 16:23:26
3楼2012-10-16 16:33:32
lanmao630
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- 应助: 4 (幼儿园)
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4楼2012-10-16 16:47:09
