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

• DOI: 10.1039/c2ra20797d
• Publication Date: 2012-06-08T14:00:19Z
• Authors: Xianghong Liu; Jun Zhang; Shihua Wu; Dongjiang Yang; Porun Liu; Haimin Zhang; Shurong Wang; Xiangdong Yao; Guangshan Zhu; Huijun Zhao
• Keywords: Recrystallization (geology)

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} using a simple hydrothermal method. formation mechanism the unique crystal structure been systematically studied, revealing that are formed through an aggregation–phase transformation–recrystallization mechanism. More importantly, demonstrated highly advantageous for high performance gas sensors. This work sheds some new light on faceted functional device applications.