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Synthesization and crystallization mechanism of nano-scale γ-AlOOH with various morphologies 被引量：6

Synthesization and crystallization mechanism of nano-scale γ-AlOOH with various morphologies
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摘要 Nano-scale γ-AIOOH with various morphologies, such as whisker, bar, ball, and sheet, was synthesized successfully and control- lably through a facile hydrothermal method just by adjusting the pH value of the solvent. Based on the analysis of the experimental data, the growth mechanism of nano-scale γ-AlOOH in the hydrothermal process was established. It is proposed that the growth unit and the growth direction are determined by the pH value of the solution and the growth unit, respectively. One-dimensional γ-AlOOH, such as whisker and bar, is formed in lower pH ranges, while two-dimensional γ-AlOOH sueli as sheet is formed only in high pH environment following the plane expansion crystallization mechanism. Nano-scale γ-AIOOH with various morphologies, such as whisker, bar, ball, and sheet, was synthesized successfully and control- lably through a facile hydrothermal method just by adjusting the pH value of the solvent. Based on the analysis of the experimental data, the growth mechanism of nano-scale γ-AlOOH in the hydrothermal process was established. It is proposed that the growth unit and the growth direction are determined by the pH value of the solution and the growth unit, respectively. One-dimensional γ-AlOOH, such as whisker and bar, is formed in lower pH ranges, while two-dimensional γ-AlOOH sueli as sheet is formed only in high pH environment following the plane expansion crystallization mechanism.
作者 Bao-hong Hao Ke-ming Fang Lan Xiang Qiang Liu
机构地区 School of Metallurgical and Ecological Engineering Department of Mechanical Engineering Department of Chemical Engineering
出处 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2010年第3期376-379,共4页 矿物冶金与材料学报（英文版）
关键词 BOEHMITE morphology control crystallization mechanism growth unit AGGREGATE boehmite morphology control crystallization mechanism growth unit aggregate
分类号 TQ133.1 [化学工程—无机化工] TB383 [一般工业技术—材料科学与工程]
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参考文献16

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同被引文献25

  • 1商连弟,王宗兰,揣效忠,孙柏瑜,王承武,焦秀莉.八种晶型氧化铝的研制与鉴别[J].化学世界,1994,35(7):346-350. 被引量：41
  • 2刘红华.纳米陶瓷的特性与应用[J].佛山陶瓷,2005,15(2):34-35. 被引量：3
  • 3刘刚,王铀.纳米陶瓷的发展及研究现状[J].陶瓷,2006(1):8-15. 被引量：9
  • 4刘银,武成利,黄文中,郑林义,陆向阳,张明旭.纳米Al_2O_3粉添加对氧化铝陶瓷烧结行为的研究[J].安徽理工大学学报（自然科学版）,2006,26(1):41-44. 被引量：5
  • 5He Taobo,Xiang Lan,Zhu Wangeheng, et al. H2SO4-assisted hydrothermal preparation of gamma-AIOOH nanorods[J] Materials Letters, 2008, 62(17-18) :2939-2942.
  • 6He Taobo He, Xiang Lan, Zhu Shenlin. Hydrothermal preparation of boehmite nanorods by selective adsorption of sulfate [J]. Langmuir, 2008, 24(15): 8284-8289.
  • 7Shi Erwei, Chen Zhizhan, Yuan Rulin,etc. Hydrothermalcrystallography[M]. Beijing: Science Press (2004).
  • 8Chandradass J, Bae D S, Balasubramanian M. Synthesisand characterization of sol-gel alumina fiber by seedingalpHa-alumina through extended ball milling[J]. Materials and Manufacturing Processes. 2008, 23(8): 786-790.
  • 9Taobo He, Lan Xiang, Shenlin Zhu, Hydrothermalpreparation of boehmite nanorods by selective adsorption of sulfate[J]. Langmuir, 2008, 24(15): 8284-8289.
  • 10Taobo He, Lan Xiang, Wangcheng Zhu, Shenlin Zhu,H2SO4 -assisted hydrothermal preparation of gamma -AlOOH nanorods[J]. Materials Letters, 2008, 62(17-18):2939-2942.

引证文献6

二级引证文献3

International Journal of Minerals,Metallurgy and Materials
2010年 第3期

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