文献类型：期刊文献

中文题名：分级结构纳米氧化铝的可控合成及应用

英文题名：Synthesis and Application of Hierarchically Structured Nano-Alumina

作者：汤睿[1];李平[1]

机构：[1]华东理工大学化学工程联合国家重点实验室,上海200237

年份：2012

卷号：24

期号：2

起止页码：284

中文期刊名：化学进展

外文期刊名：Progress in Chemistry

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000304130800010)】；北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家重点基础研究发展计划(973)项目(No.2012CB720500)资助

语种：中文

中文关键词：分级结构;纳米氧化铝;形态;合成;应用

外文关键词：hierarchical structure ; nano-alumina; morphology ; synthesis; application

摘要：分级结构纳米氧化铝由于具有微-纳米尺度的协同和偶合效应近年来受到广泛关注。本文将不同形态的分级结构分为空心球状结构、核壳结构、簇状结构和阵列结构4种一般类型,并综述了其合成进展。简要评述了合成过程中的影响因素及分级结构形成的机理,并概述了其热稳定性的相关研究,还列举了其在光学与催化等领域的应用。最后,从分级结构的形态和性质的可控合成与实际应用相结合的角度展望了未来的研究方向。
Nano-alumina with hierarchical structure has recently attracted extensive attention because of its synergism and coupling effect on micro-nano scales. In the paper, the hierarchical structures of nano-alumina reported in the literature have been divided into four main types including hollow sphere, core-shell, cluster, and array. The progress of their synthesis techniques has been reviewed. Several factors affecting the morphology of nano-alumina particles with hierarchical structure in the course of synthesis have been discussed. It has been recognized in the literature that a majority of effects could be altered if changing the.synthesis environment, indicating the complexity of hierarchical structure formation. Nevertheless, there is a general rule for the effect of pH in the hydrothermal process on the morphology of the secondary structure of nano-alumina. Acid condition favors the formation of one dimensional nano-alumina while basic condition helps to form two dimensional nano-alumina. The formation mechanism of the hierarchically structured nano-alumina has briefly been explained. Additionally, the effect of hierarchical morphology on the thermal stability of alumina has been depicted using available results presented in the literature. Some examples of the material applied to the areas of luminescence, adsorption and catalysis have been given in the paper. As viewed from the combination of the rational synthesis and the practical applications of the material with specific properties, the prospects of the research on the hierarchically structured nano-alumina have been outlined in the end of the paper.