Rational Growth of Various -MnO2 Hierarchical Structures and 
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- 作者：Zhengquan Li ; Yue Ding ; Yujie Xiong ; and Yi Xie
- 刊名：Crystal Growth & Design
- 出版年：2005
- 出版时间：September 2005
- 年：2005
- 卷：5
- 期：5
- 页码：1953 - 1958
- 全文大小：644K
- 年卷期：v.5,no.5(September 2005)
- ISSN：1528-7505
文摘
Heterogeneous catalytic reactions involved in the vapor-liquid-solid (VLS) or solution-liquid-solid(SLS) growth of 1-D nanostructures have been intensively investigated in recent years. But how to control thehomogeneous catalytic route and apply it to design new structures of materials has rarely been discussed. In thiswork, a homogeneous catalyst was successfully controlled via changing the catalyst feed way, and three novel 
-MnO2hierarchical structures, namely, urchin-like structures, sphere networks, and nanowire networks, were selectivelysynthesized at room temperature. 
-MnO2 nanorods were also prepared via this method at higher temperatures.The present work indicates that the homogeneous catalytic route not only can produce one certain structure ofinorganic materials but also can be rationally controlled and therefore used to grow more new structures. On theother hand, this homogeneous catalytic method is a solution-based self-assembly route, providing a simple, mild,and template-free way to the fabrication of hierarchical structures.
-MnO2hierarchical structures, namely, urchin-like structures, sphere networks, and nanowire networks, were selectivelysynthesized at room temperature. -MnO2 nanorods were also prepared via this method at higher temperatures.The present work indicates that the homogeneous catalytic route not only can produce one certain structure ofinorganic materials but also can be rationally controlled and therefore used to grow more new structures. On theother hand, this homogeneous catalytic method is a solution-based self-assembly route, providing a simple, mild,and template-free way to the fabrication of hierarchical structures.