Synthesis of flower-like Boehmite (¦Ã-AlOOH) via a one-step ionic liquid-assisted hydrothermal route

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• 作者：Zhe Tang ^{tangzhe1983@163.com} ; Jilei Liang ^{liangjilei_httplan@126.com} ; Xuehui Li ^{lxhhmx@163.com} ; Jingfeng Li ^{dzcljf@126.com} ; Hailing Guo ; Yunqi Liu ; ^{liuyq@upc.edu.cn} ; Chenguang Liu ^{cgliu@upc.edu.cn}
• 关键词：Boehmite ; Ionic liquid ; Alumina ; Flower-like architecture ; Hydrothermal
• 刊名：Journal of Solid State Chemistry
• 出版年：2013
• 出版时间：June, 2013
• 年：2013
• 卷：202
• 期：Complete
• 页码：305-314
• 全文大小：1794 K

文摘

A simple and novel synthesis process, one-step ionic liquid-assisted hydrothermal synthesis route, has been developed in the work to synthesize Bohemithe (¦Ã-AlOOH) with flower-like structure. The samples were characterized by X-ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning Electron Microscope (SEM). Ionic liquid [Omim]⁺Cl^?, as a template, plays an important role in the morphology and pore structure of the products due to its strong interactions with reaction particles. With the increase in the dosage of ionic liquid [Omim]⁺Cl^?, the morphology of the ¦Ã-AlOOH was changed from initial bundles of nanosheets (without ionic liquid) into final well-developed monodispersed 3D flower-like architectures ([Omim]⁺Cl^?=72 mmol). The pore structure was also altered gradually from initial disordered slit-like pore into final relatively ordered ink-bottle pore. Furthermore, the proposed formation mechanism and other influencing factors such as reaction temperature and urea on formation and morphology of the ¦Ã-AlOOH have also been investigated.