One-Step Synthesis of Hierarchical Cantaloupe-like AlOOH Superstructures via a Hydrothermal Route

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• 作者：Yongli Feng ; Wencong Lu ; Liangmiao Zhang ; Xinhua Bao ; Baohua Yue ; Yong lv ; Xingfu Shang
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：April 2008
• 年：2008
• 卷：8
• 期：4
• 页码：1426 - 1429
• 全文大小：517K
• 年卷期：v.8,no.4(April 2008)
• ISSN：1528-7505

文摘

Hierarchical cantaloupe-like and hollow microspherical AlOOH superstructures were successfully synthesized on a large scale via a one-step hydrothermal route. The as-obtained superstructures were characterized by several techniques, such as X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), and nitrogen adsorption/desorption measurement. The as-obtained superstructures, consisting of closely packed nanorods in an ordered fashion, have an average horizontal axis of ca. 2.5 µm and a longitudinal axis of ca. 1.5 µm. The as-obtained cantaloupe-like AlOOH superstructures have Brunauer–Emmett–Teller (BET) surface area of about 55.5 m²/g. The possible formation mechanism of the cantaloupe-like AlOOH superstructures is proposed and discussed.