title: The synthesis of CeO₂ nanospheres with different hollowness and size induced by copper doping.
abstract: In this paper, copper-doped ceria oxides with different hollowness and size are fabricated by changing the Cu(2+) doping concentration in the mixed water-glycol system. Results show that the copper-doped CeO₂ oxides undergo a morphology transformation from the solid nanospheres to core-shell, then to hollow nanospheres with the increase of the Cu(2+) doping concentration. The corresponding size becomes smaller during this transfer process. The Cu(2+) doping induced acceleration in the nucleation and growth process is further investigated. The resultant Cu(2+)-doped CeO2 oxides exhibit enhanced CO conversion performance and better reduction behaviors.
authors.affiliation: Key Laboratory for Special Functional Aggregate Materials of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P. R. China. yzhyang@sdu.edu.cn.
authors.forename: Wei
authors.initials: W
authors.lastname: Liu
authors.forename: Xiufang
authors.initials: X
authors.lastname: Liu
authors.forename: Lijun
authors.initials: L
authors.lastname: Feng
authors.forename: Jinxin
authors.initials: J
authors.lastname: Guo
authors.forename: Anran
authors.initials: A
authors.lastname: Xie
authors.forename: Shuping
authors.initials: S
authors.lastname: Wang
authors.forename: Jingcai
authors.initials: J
authors.lastname: Zhang
authors.forename: Yanzhao
authors.initials: Y
authors.lastname: Yang