title: Room temperature synthesis of hollow CdMoO(4) microspheres by a surfactant-free aqueous solution route.
abstract: Hollow cadmium molybdate microspheres have been successfully prepared via a template-free aqueous solution method with the assistance of NaCl at room temperature. The structure and morphology of the CdMoO(4) hollow microspheres were characterized by X-ray diffraction, field-emission scanning electron microscopy, and transmission electron microscopy. The microspheres have diameters of 3-6 microm and hollow interiors of 2-3 microm. The shell is composed of numerous single-crystalline nanorods with diameters of 30-120 nm and lengths of 1-2 microm which are radially oriented to the center. A certain concentration of NaCl plays a key important role in the formation process of hollow microspheres, which might provide a suitable chemical environment to favor the formation of hollow CdMoO(4) microspheres. A possible NaCl-induced Ostwald ripening process is proposed for the formation of hollow CdMoO(4) microspheres on the basis of scanning electron microscopy observation of intermediate products at different precipitation stages.
authors.affiliation: School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.
authors.forename: Wen-Shou
authors.initials: WS
authors.lastname: Wang
authors.forename: Liang
authors.initials: L
authors.lastname: Zhen
authors.forename: Cheng-Yan
authors.initials: CY
authors.lastname: Xu
authors.forename: Bao-You
authors.initials: BY
authors.lastname: Zhang
authors.forename: Wen-Zhu
authors.initials: WZ
authors.lastname: Shao