Indium Hydroxides, Oxyhydroxides, and Oxides Nanocrystals Series

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• 作者：Zhongbin Zhuang ; Qing Peng ; Junfeng Liu ; Xun Wang ; Yadong Li
• 刊名：Inorganic Chemistry
• 出版年：2007
• 出版时间：June 25, 2007
• 年：2007
• 卷：46
• 期：13
• 页码：5179 - 5187
• 全文大小：1038K
• 年卷期：v.46,no.13(June 25, 2007)
• ISSN：1520-510X

文摘

Indium hydroxides, oxyhydroxides, and oxides are important n-type semiconductors and have wide applications inmaterial fields. In this Article, a series of In(OH)₃ and InOOH nanocrystals with different structures and morphologies,such as nanocubes, nanorods, multipods, and nanoparticles, have been synthesized selectively through a liquid-phase reaction, by adjusting the alkalinity and polarity of the solvent. It is found that InOOH multipods are in theorthorhombic phase and their arms grow along nonequivalent faces. Cubic and hexagonal In₂O₃ can be obtainedfrom In(OH)₃ and InOOH, respectively, while size and morphology can be maintained to a certain extent. Gassensors were fabricated by using In₂O₃, and a device based on the multipods shows the best responses to ethanolvapor. XRD, TEM, HRTEM, SEM, and SAED have been used to characterize these nanocrystals. This work providesa preliminary investigation into the structural-based gas-sensing properties of these nanocrystals.