Synthesis of organized mesoporous alumina by high gravity technology

WANG Gang; ZHAO Ruihong; GUO Fen; CHEN Jianfeng; LI Zhiping

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Synthesis of organized mesoporous alumina by high gravity technology

更新时间：2025-12-10

- Synthesis of organized mesoporous alumina by high gravity technology
- CIESC Journal Issue 5, Pages: 1310-1314(2008)
- 作者机构：
  
  1. 北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室
  2. 河北科技大学化学与制药工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 May 2008，
  
  Published：05 May 2008
- 稿件说明：
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WANG Gang, ZHAO Ruihong, GUO Fen, et al. Synthesis of organized mesoporous alumina by high gravity technology[J]. CIESC Journal, 2008, (5): 1310-1314.
DOI：

WANG Gang, ZHAO Ruihong, GUO Fen, et al. Synthesis of organized mesoporous alumina by high gravity technology[J]. CIESC Journal, 2008, (5): 1310-1314. DOI：

摘要

从微观混合角度探讨有序介孔氧化铝制备过程，以硝酸铝为铝源，碳酸铵为沉淀剂，PEG 1540为模板剂，采用沉淀法在旋转填充床中制备有序介孔氧化铝。考察了旋转床转速、初始混合方式、反应温度、加料速度等因素对介孔结构的影响。研究结果表明采用超重力技术可以合成比表面积高、孔径分布窄、具有蠕虫状孔道、有序性较好的介孔氧化铝，进一步分析结果表明超重力技术在介孔氧化铝的合成过程中对孔结构有很好的控制作用。

Abstract

Organized mesoporous alumina was synthesized in a rotating packed bed (RPB) by the traditional precipitation method.Aluminum nitrate was used as the source of aluminum

ammonium carbonate was used as precipitator

and polyethylene glycol 1540 (PEG 1540) was used as template.Then the effects of rotation speed

reactant mixing style

temperature and the addition rate of precipitator on the structure of mesopores were investigated.The experimental results indicated that the structure of mesoporous alumina was controlled by the high gravity technology.High surface area

narrow pore size distributions and ordered wormlike pores were obtained

and the high gravity technology had a significant effect on pore structure in the synthesis of mesoporous alumina.

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