title: Three-dimensional hierarchical flowerlike α-Fe2O3 nanostructures: synthesis and ethanol-sensing properties.
abstract: The α-Fe(2)O(3) hierarchical nanostructures have been successfully synthesized via a simple solvothermal method. The as-prepared samples are loose and porous with flowerlike structure, and the subunits are irregularly shaped nanosheets. The morphology of the α-Fe(2)O(3) structures was observed to be tunable as a function of reaction time. To demonstrate the potential applications, we have fabricated a gas sensor from the as-synthesized hierarchical α-Fe(2)O(3) and investigated it for ethanol detection. Results show that the hierarchical α-Fe(2)O(3) sensor exhibits significantly improved sensor performances in comparison with the compact α-Fe(2)O(3) structures. The enhancement of sensing properties is attributed to the unique porous and well-aligned nanostructure.
authors: State Key Laboratory on Integrated Optoelectronics, College of Electronic Science, Engineering, Jilin University, Changchun 130012, People's Republic of China.
authors: LiLi
authors: L
authors: Wang
authors: Teng
authors: T
authors: Fei
authors: Zheng
authors: Z
authors: Lou
authors: Tong
authors: T
authors: Zhang
mesh_terms: D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D000431:Ethanol / Q000032:analysis*; D005290:Ferric Compounds / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D036103:Nanotechnology / Q000295:instrumentation* / Q000379:methods
chemical_list: D005290:Ferric Compounds; D000431:Ethanol