Indium hydroxides, oxyhydroxides, and oxides nanocrystals series.
Indium hydroxides, oxyhydroxides, and oxides nanocrystals series.
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DOI：
10.1021/ic061999f
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发表时间：
2007-05
影响因子：
4.6
通讯作者：
Z. Zhuang;Q. Peng;Junfeng Liu;Xun Wang;Yadong Li
中科院分区：
文献类型：
--
作者：
Z. Zhuang;Q. Peng;Junfeng Liu;Xun Wang;Yadong Li
氧化铟、氢氧化物和氧化物是重要的n型半导体，在材料领域有着广泛的应用。本文通过调节溶剂的碱度和极性，通过液相反应选择性地合成了一系列具有不同结构和形态的In(OH)(3)和InOOH纳米晶体，如纳米立方、纳米棒、多荚体和纳米颗粒。研究发现，InOOH多聚体处于正交相，其臂沿非等效面生长。In(OH)(3)和InOOH分别可以得到立方和六边形的In(2)O(3)，并且在一定程度上保持了尺寸和形貌。用In(2)O(3)材料制作了气体传感器，其中基于multipods的装置对乙醇蒸汽的响应效果最好。采用XRD、TEM、HRTEM、SEM、SAED等方法对纳米晶体进行了表征。这项工作为这些纳米晶体基于结构的气敏特性提供了初步的研究。
Indium hydroxides, oxyhydroxides, and oxides are important n-type semiconductors and have wide applications in material 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 the orthorhombic phase and their arms grow along nonequivalent faces. Cubic and hexagonal In(2)O(3) can be obtained from In(OH)(3) and InOOH, respectively, while size and morphology can be maintained to a certain extent. Gas sensors were fabricated by using In(2)O(3), and a device based on the multipods shows the best responses to ethanol vapor. XRD, TEM, HRTEM, SEM, and SAED have been used to characterize these nanocrystals. This work provides a preliminary investigation into the structural-based gas-sensing properties of these nanocrystals.