From Single-Component Nanowires to Composite Nanotubes

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• 作者：Yina Zhu ; Wei Chen ; Caiyun Nan ; Qing Peng ; Ruji Wang ; Yadong Li
• 刊名：Crystal Growth & Design
• 出版年：2011
• 出版时间：October 5, 2011
• 年：2011
• 卷：11
• 期：10
• 页码：4406-4412
• 全文大小：968K
• 年卷期：v.11,no.10(October 5, 2011)
• ISSN：1528-7505

文摘

In this work, a facile, solution phase route using Co(OH)_x(CO₃)_y nanowires as precursors was developed to fabricate SnO₂/Co(OH)_x+2蔚(CO₃)_{y鈭捨?/sub>, and then they were transformed into SnO2/Co3O4 composite nanotubes by a simple thermal treatment process, which had great advantages in controlling their elemental ratios and the size of inner diameters. The mechanism is systematically discussed, which offers a clue that 鈥渄iffusion鈥?could be used as a driving force for the formation of nanotubes with different components, and single-component nanowires with replaceable negative ions may serve as good building blocks. TiO2/Co3O4 nanotubes were also successfully achieved to demonstrate the generality of the methodology, which is helpful for scientists to exploit novel functional materials with new properties and applications.}