Synthesis of CoOOH hierarchically hollow spheres by nanorod self-assembly through bubble templating
Synthesis of CoOOH hierarchically hollow spheres by nanorod self-assembly through bubble templating
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DOI：
10.1021/cm702868u
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发表时间：
2008-03-11
影响因子：
8.6
通讯作者：
Sasaki, Takehiko
中科院分区：
文献类型：
--
作者：
Yang, Jinhu;Sasaki, Takehiko
CoOOH分层空心球由纳米棒通过自组装加上气泡模板通过一个简单的一步水热路线已被证明。能量最小化驱动的CoOOH纳米棒在CTAC诱导的O2气泡的基础上的自组装负责形成分级中空结构。研究了H2O2浓度和CTAC对CoOOH纳米棒晶化和自组装过程的影响。研究发现，H2O2浓度不仅影响CoOOH纳米棒的结晶度、形状和尺寸，而且影响其进一步自组装过程，决定了纳米棒自组装体最终形成空心球或实心聚集体，而CTAC可能诱导CoOOH纳米棒获得更有序的自组装体.这是首次合成具有复杂中空结构的CoOOH晶体。
CoOOH hierarchically hollow spheres consisting of nanorods by self-assembly coupled with bubble templating through a facile one-step hydrothermal route have been demonstrated. An energy-minimizing-driven self-assembly of CoOOH nanorods on the base Of 02 bubbles induced by CTAC is responsible for the formation of hierarchically hollow structure. The effects of H2O2 concentrations and CTAC during the crystallization and self-assembly process of CoOOH nanorods have been studied. It is found that H2O2 concentration is a key factor that affects not only the crystallinity, shape, and size but also the further self-assembly process of CoOOH nanorods, determining the final formations of hollow spheres or solid aggregates of nanorod self-assemblies, while CTAC can probably induce the CoOOH nanorods to get more ordered self-assembly. This is the first synthesis of complex hollow structure of CoOOH crystals with hierarchy.