title: Synthesis, self-assembly, and high performance in gas sensing of X-shaped iron oxide crystals.
abstract: X-shaped goethite iron oxide crystals were synthesized by a surfactant-free mild hydrothermal synthesis method with the aid of fluorine ions. The X-shaped goethite crystals could readily self-assemble into microscopic hollow spheres through an oil-water interface induced self-assembly method. X-shaped hematite crystals were obtained by phase topotactic transformation of the goethite precursors. The gas sensor properties of X-shaped hematite iron oxide were investigated, and the mechanism for excellent sensor properties was discussed.
authors.affiliation: Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China.
authors.forename: Zhi-Feng
authors.initials: ZF
authors.lastname: Dou
authors.forename: Chang-Yan
authors.initials: CY
authors.lastname: Cao
authors.forename: Qiong
authors.initials: Q
authors.lastname: Wang
authors.forename: Jin
authors.initials: J
authors.lastname: Qu
authors.forename: Yu
authors.initials: Y
authors.lastname: Yu
authors.forename: Wei-Guo
authors.initials: WG
authors.lastname: Song