Role of self-assembly in construction of inorganic nanostructural materials  

作　　者：XIONG YanSong TANG ZhiYong 

机构地区：[1]National Center for Nanoscience and Technology,Beijing 100190,China [2]Department of Chemistry,Tsinghua University,Beijing 100084,China

出　　处：《Science China Chemistry》2012年第11期2272-2282,共11页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation for Distinguished Youth Scholars of China (21025310, Z.Y.T.);National Natural Science Foundation of China (91027011, Z.Y.T.);National Basic Research Program of China (973 Program) (2009CB930401,Z.Y.T.)

摘　　要：Understanding the evolution process and formation mechanism of nanoscale structures is crucial to controllable synthesis of inorganic nanomaterials with well-defined geometries and unique functionalities. In addition to the conventional Ostwald ripening process, oriented aggregation has been recently found to be prevalent in nanocrystal growth. In this new mechanism, primary small nanocrystals firstly spontaneously aggregate in the manner of oriented attachment, and then the large crystalline materials are formed via the process of interparticle recrystallization. Furthermore, controllable fabrication of the ordered nanocrystal solid materials that has shown specific collective properties will promote the application of inorganic nanocrystal in devices. Therefore, investigation of the mechanism of oriented aggregation is essential to controllable synthesis of nanocrystals and ordered nanocrystal solid materials. In this review, we summarize recent advances in the preparation of nanocrystal materials, which are mostly focused on our work about the role of self-assembly in construction of inorganic nanostructural materials.Understanding the evolution process and formation mechanism of nanoscale structures is crucial to controllable synthesis of inorganic nanomaterials with well-defined geometries and unique functionalities. In addition to the conventional Ostwald rip- ening process, oriented aggregation has been recently found to be prevalent in nanocrystal growth. In this new mechanism, primary small nanocrystals firstly spontaneously aggregate in the manner of oriented attachment, and then the large crystalline materials are formed via the process of interparticle recrystallization. Furthermore, controllable fabrication of the ordered nanocrystal solid materials that has shown specific collective properties will promote the application of inorganic nanocrystal in devices. Therefore, investigation of the mechanism of oriented aggregation is essential to controllable synthesis of nano- crystals and ordered nanocrystal solid materials. In this review, we summarize recent advances in the preparation of nanocrys- tal materials, which are mostly focused on our work about the role of self-assembly in construction of inorganic nanostructural materials.

关 键 词：inorganic nanocrystai oriented aggregation SELF-ASSEMBLY driving forces 

分 类 号：TB383[一般工业技术—材料科学与工程] O48[理学—固体物理]