| 非平衡晶化控制水滑石晶粒尺寸 |
| Control of Particle Size of Layered Double Hydroxides using Non-equilibrium Aging Conditions |
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| 摘要: 本文采用非平衡晶化法通过在晶化后期补加原料合成了一系列不同晶粒尺寸的水滑石(LDH)样品,研究表明:非平衡晶化法可在一定范围内调控LDH的粒径,所合成的LDH样品组成稳定,晶体结构完整. |
| 关键词: 水滑石 晶粒尺寸 非平衡晶化 |
| 基金项目: 中国石油化工集团公司资助项目(No.X59012) |
| Abstract: Mg/Al-layered double hydroxides(LDH)with different particle size have been prepared using non-equilibrium aging conditions by supplying a solution of Mg (NO3)2·6H2O and Al(NO3)3·9H2O and a solution containing NaOH and Na2CO3 at a later aging stage.It was found th at the particle size of LDH could be controlled to some extent by changing the quantities of salt and base added in the second step.Furthermore it was found that LDH samples with a stable composition and increased crystallinity could be synthesized by this method. |
| Keywords: layered double hydroxides particle size non-equilibrium aging conditions |
| 投稿时间：2001-05-28 修订日期：2001-07-20 |
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| 赵芸,矫庆泽,李峰,Evans D. G.,段雪.非平衡晶化控制水滑石晶粒尺寸[J].无机化学学报,2001,17(6):830-834. |
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