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[求助]
三乙胺在納米顆粒合成中的作用
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Preparation and characterization of nano cobalt oxide 文獻(xiàn)中,給出了制備Co3O4納米顆粒的方法,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,這起了什么作用?是作為催化劑?還是催化劑兼穩(wěn)定劑作用? 然后生成Co3O4的反應(yīng)應(yīng)該是什么樣的?然后這種制備方法算不算是水熱合成?求教 ![]() [ 來自科研家族 木蟲催化 ] |

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