One-Pot Synthesis and Gas-Sensing Properties of Hierarchical ZnSnO3 Nanocages

详细信息    查看全文

• 作者：Yi Zeng ; Tong Zhang ; Huitao Fan ; Wuyou Fu ; Geyu Lu ; Yongming Sui ; Haibin Yang
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：November 5, 2009
• 年：2009
• 卷：113
• 期：44
• 页码：19000-19004
• 全文大小：218K
• 年卷期：v.113,no.44(November 5, 2009)
• ISSN：1932-7455

文摘

We have successfully fabricated hierarchical ZnSnO₃ nanocages via a facile one-pot solution synthesis method. Field emission scanning electron microscopic and transmission electron microscopic results reveal that the cubic ZnSnO₃ samples with hollow interior and porous shells are cage-like structure with the side length of 200−400 nm, where the subunits are irregular-shaped nanoparticles. The time-dependent morphology of the ZnSnO₃ samples has been investigated, and a possible formation mechanism of these hierarchical structures is proposed. Moreover, gas sensor based on hierarchical ZnSnO₃ nanocages exhibits better sensing properties compared with the solid ZnSnO₃ nanocubes. The facile preparation method may provide an easy path to the extendable synthesis of other functional nanomaterials with hollow structure and further exploitation of the potential applications.