Study of template-free synthesis hierarchical m-ZrO₂ nanorods by hydrothermal method

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• 作者：Shahzad Ahmad Khan ; Zhengyi Fu ; ^{zyfu@whut.edu.cn" class="auth_mail} ; Sahibzada Shakir Rehman ; Muhammad Asif ; Weimin Wang ; Hao Wang
• 关键词：Powders ; chemical preparation ; Chemical properties ; Growth models ; ZrO2
• 刊名：Powder Technology
• 出版年：April, 2014
• 年：2014
• 卷：256
• 期：Complete
• 页码：71-74
• 全文大小：764 K

文摘

The template-free synthesis of hierarchical m-ZrO₂ nanorods by a simple hydrothermal method and its possible formation mechanism based on a series of chemical reactions have been proposed here. The traditional preparation methods of hierarchical ZrO₂ nanorods are involved in expensive equipment, complicated process and high production cost. Owing to their physical and chemical properties hierarchical ZrO₂ nanorods have received considerable attention. The results revealed that as synthesized products are composed of many nanorods with 100-200 nm in diameter and 3-5 渭m in length. The final product after annealing is involved into hierarchical monoclinic ZrO₂ (m-ZrO₂) nanorods, the big nanorod was made up of many small nanorods with 30-40 nm in diameter and 350-450 nm in length. This discovery could open a new path to the template-free synthesis of hierarchical nanomaterials.