title: Peculiar surface-interface properties of nanocrystalline ceria-cobalt oxides with enhanced oxygen storage capacity.
abstract: Peculiar surface-interface properties of nanocrystalline ceria-cobalt oxides were evidenced by X-ray diffraction, transmission electron microscopy and X-ray absorption spectroscopy. It was found that cobalt foreign cations modify the surface oxygen vacancies of ceria at the atomic level, inducing the exposure of well-defined reactive faces between the ceria-host and the cobalt oxide interface. These modifications of the surface-interface structure promoted a remarkable increase in the oxygen storage capacity of ceria nanocrystals.
authors.affiliation: Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, P. R. China. jzhang@ihep.ac.cn.
authors.forename: Nan
authors.initials: N
authors.lastname: Qiu
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.forename: Ziyu
authors.initials: Z
authors.lastname: Wu