title: Electronic metal-support interactions in single-atom catalysts.
abstract: The synthesis of single-atom catalysts and the control of the electronic properties of catalytic sites to arrive at superior catalysts is a major challenge in heterogeneous catalysis. A stable supported single-atom silver catalyst with a controllable electronic state was obtained by anti-Ostwald ripening. An electronic perturbation of the catalytic sites that is induced by a subtle change in the structure of the support has a strong influence on the intrinsic reactivity. The higher depletion of the 4d electronic state of the silver atoms causes stronger electronic metal-support interactions, which leads to easier reducibility and higher catalytic activity. These results may improve our understanding of the nature of electronic metal-support interactions and lead to structure-activity correlations.
authors.affiliation: Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, 220 Handan Road, Shanghai, 200433 (China).
authors.forename: Pingping
authors.initials: P
authors.lastname: Hu
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Huang
authors.forename: Zakariae
authors.initials: Z
authors.lastname: Amghouz
authors.forename: Michiel
authors.initials: M
authors.lastname: Makkee
authors.forename: Fei
authors.initials: F
authors.lastname: Xu
authors.forename: Freek
authors.initials: F
authors.lastname: Kapteijn
authors.forename: Alla
authors.initials: A
authors.lastname: Dikhtiarenko
authors.forename: Yaxin
authors.initials: Y
authors.lastname: Chen
authors.forename: Xiao
authors.initials: X
authors.lastname: Gu
authors.forename: Xingfu
authors.initials: X
authors.lastname: Tang
keywords: electronic structure; heterogeneous catalysis; metal-support interactions; oxygen activation; single-atom catalysis