Issue 6, 2012
From the journal:

CrystEngComm

Phase-controlled synthesis and gas-sensing properties of zinc stannate (ZnSnO3 and Zn2SnO4) faceted solid and hollow microcrystals

Guanxiang Ma,a   Rujia Zou,a   Lin Jiang,a   Zhenyu Zhang,a   Yafang Xue,a   Li Yu,a   Guosheng Song,a   Wenyao Lia  and  Junqing Hu*a  

* Corresponding authors

a State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
E-mail: hu.junqing@dhu.edu.cn

Abstract

Well-defined faceted zinc stannate, including cubic ZnSnO3 and octahedral Zn2SnO4, microcrystals were synthesized in a large scale by a one-step chemical solution route, in which the phase control was simply accomplished by only changing stannic precursors. These faceted cubic ZnSnO3 and octahedral Zn2SnO4 microcrystals are easily converted to faceted hollow structures with a shape preserved through an acid etching process. Possible growth and etching mechanisms of these faceted microcrystals have been proposed. The hollow structures of zinc stannate were exploited as gas sensors and exhibit improved sensing performances to a series of gases (especially with regard to H2S and C2H5OH); moreover, the sensitivity and recovery time of Zn2SnO4 hollow octahedral structures to H2S and C2H5OH are both higher than those of the cubic structures, which may find potential industrial applications in detecting gases.

Graphical abstract: Phase-controlled synthesis and gas-sensing properties of zinc stannate (ZnSnO3 and Zn2SnO4) faceted solid and hollow microcrystals

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Article information

DOI
https://doi.org/10.1039/C2CE06272K
Article type
Paper
Submitted
26 Sep 2011
Accepted
25 Nov 2011
First published
18 Jan 2012

CrystEngComm, 2012,14, 2172-2179

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Phase-controlled synthesis and gas-sensing properties of zinc stannate (ZnSnO3 and Zn2SnO4) faceted solid and hollow microcrystals

G. Ma, R. Zou, L. Jiang, Z. Zhang, Y. Xue, L. Yu, G. Song, W. Li and J. Hu, CrystEngComm, 2012, 14, 2172 DOI: 10.1039/C2CE06272K

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