无机材料学报

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水热法制备一维纳米γ-AlOOH的形态结构

陆光伟, 杨 琪, 邓意达, 胡文彬   

  1. 上海交通大学 金属基复合材料国家重点实验室, 上海 200240
  • 收稿日期:2008-09-10 修回日期:2008-11-27 出版日期:2009-05-20 网络出版日期:2009-05-20

Fabrication of Morphology of One-dimensional Nano-γ-AlOOH via Hydrothermal Route

LU Guang-Wei, YANG Qi, DENG Yi-Da, HU Wen-Bin   

  1. State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2008-09-10 Revised:2008-11-27 Published:2009-05-20 Online:2009-05-20

摘要: 通过水热法制备了前驱体γ-AlOOH的一维纳米结构,考察了工艺参数对结构的影响. 研究结果表明,当AlCl3溶液浓度小于0.2mol/L,反应溶液pH<7,反应温度控制在160~180℃时,可以得到γ-AlOOH纳米棒,而当pH>7时,样品呈片状;当AlCl3浓度大于0.2mol/L,pH控制在5~6,反应温度控制在200℃左右,并加入表面活性剂SDBS,可以制备大长径比γ-AlOOH纳米纤维.

关键词: 水热法, 纳米γ-AlOOH, 形态结构, 工艺参数

Abstract: One-dimensional nanostructure γ-AlOOH was fabricated via hydrothermal synthesis. And the effects of the processing parameters on structure of γ-AlOOH were investigated. The results show that γ-AlOOH nanorod can be achieved on the condition that AlCl3 density is lower than 0.2mol/L, pH value of reacting solution is lower than 7, and reacting temperature is set between 160℃ and 180℃; when pH value is higher than 7, γ-AlOOH is in the shape of nanoflake. Nanofiber with high slenderness ratio can be achieved on the condition that AlCl3 density is higher than 0.2mol/L, pH value is controlled between 5 and 6, and reacting temperature is set around 200℃ with adding surfactant SDBS.

Key words: hydrothermal synthesis, nano-γ-AlOOH, morphology, processing parameter

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