title: Controllable synthesis of Y2O3 microstructures for application in cataluminescence gas sensing.
abstract: Y(2)O(3) dumbbells, microspheres, and nanosheets were synthesized by a facile hydrothermal procedure followed by calcination. Electron microscopy, X-ray diffraction, and N(2) adsorption measurements were used to characterize the yttrium oxide microstructures. On the basis of a time-dependent study of nanostructure evolution and the effect of other processing parameters, a kinetic "homogeneous nucleation-self assembly-anisotropic growth" mechanism is proposed to explain the growth of these microstructures under hydrothermal conditions. The sensitivity of as-prepared Y(2)O(3) structures to a series of gaseous chemicals was examined by using a homemade cataluminescence sensing system. The designed cataluminescence sensor based on the yttrium oxide dumbbells shows good sensing performance for 16 common volatile organic compounds.
authors.affiliation: College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China.
authors.forename: Lichun
authors.initials: L
authors.lastname: Zhang
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Hou
authors.forename: Ming
authors.initials: M
authors.lastname: Liu
authors.forename: Yi
authors.initials: Y
authors.lastname: Lv
authors.forename: Xiandeng
authors.initials: X
authors.lastname: Hou