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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 ] |

wb1988
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18楼2012-10-19 21:43:04
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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4楼2012-10-16 16:47:09










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