Issue 15, 2012
From the journal:

RSC Advances

Single crystal α-Fe2O3 with exposed {104} facets for high performance gas sensor applications†

Xianghong Liu,a   Jun Zhang,a   Shihua Wu,a   Dongjiang Yang,b   Porun Liu,b   Haimin Zhang,b   Shurong Wang,*a   Xiangdong Yao,c   Guangshan Zhuc  and  Huijun Zhao*b  

* Corresponding authors

a Department of Chemistry, TKL of Metal- and Molecule-Based Material Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE), Nankai University, Tianjin, P. R. China
E-mail: wsr618@gmail.com

b Centre for Clean Environment and Energy and Griffith School of Environment, Gold Coast Campus, Griffith University, Queensland, Australia
E-mail: h.zhao@griffith.edu.au

c Queensland Micro and Nanotechnology Centre, Nathan campus, Griffith University, Queensland, Australia

Abstract

The controlled fabrication of metal oxide nanocrystals with exposed high-index facets has drawn enormous research attention. In this article, we have synthesized single-crystalline α-Fe2O3 crystals bound by six {104} high-index facets using a simple hydrothermal method. The formation mechanism of the unique crystal structure has been systematically studied, revealing that the α-Fe2O3 crystals are formed through an aggregation–phase transformation–recrystallization mechanism. More importantly, we have demonstrated that the unique α-Fe2O3 crystals with {104} high-index facets are highly advantageous for high performance gas sensors. This work sheds some new light on using high-index faceted nanocrystals for high performance functional device applications.

Graphical abstract: Single crystal α-Fe2O3 with exposed {104} facets for high performance gas sensor applications

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Article information

DOI
https://doi.org/10.1039/C2RA20797D
Article type
Paper
Submitted
27 Apr 2012
Accepted
30 Apr 2012
First published
08 Jun 2012

RSC Adv., 2012,2, 6178-6184

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Single crystal α-Fe2O3 with exposed {104} facets for high performance gas sensor applications

X. Liu, J. Zhang, S. Wu, D. Yang, P. Liu, H. Zhang, S. Wang, X. Yao, G. Zhu and H. Zhao, RSC Adv., 2012, 2, 6178 DOI: 10.1039/C2RA20797D

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