title: The promotion effect of isolated potassium atoms with hybridized orbitals in catalytic oxidation.
abstract: The nature of the promotion effect of isolated potassium atoms anchored on surfaces of a Hollandite manganese oxide was investigated by studying their geometric and electronic structures. The results reveal that the surface isolated potassium atoms with hybridized d-sp orbitals specifically promote oxygen activation, so enhancing the low-temperature reactivity in catalytic oxidation.
authors.affiliation: Shanghai Key Laboratory of Atmospheric Particle Pollution & Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai 200433, China. tangxf@fudan.edu.cn.
authors.forename: Fei
authors.initials: F
authors.lastname: Xu
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Huang
authors.forename: Pingping
authors.initials: P
authors.lastname: Hu
authors.forename: Yaxin
authors.initials: Y
authors.lastname: Chen
authors.forename: Lei
authors.initials: L
authors.lastname: Zheng
authors.forename: Jiayi
authors.initials: J
authors.lastname: Gao
authors.forename: Xingfu
authors.initials: X
authors.lastname: Tang