title: A single-site platinum CO oxidation catalyst in zeolite KLTL: microscopic and spectroscopic determination of the locations of the platinum atoms.
abstract: A stable site-isolated mononuclear platinum catalyst with a well-defined structure is presented. Platinum complexes supported in zeolite KLTL were synthesized from [Pt(NH3)4](NO3)2, oxidized at 633 K, and used to catalyze CO oxidation. IR and X-ray absorption spectra and electron micrographs determine the structures and locations of the platinum complexes in the zeolite pores, demonstrate the platinum-support bonding, and show that the platinum remained site isolated after oxidation and catalysis.
authors.affiliation: Department of Chemical Engineering and Materials Science, University of California, Davis, One Shields Avenue, Davis, CA 95616 (USA).
authors.forename: Joseph D
authors.initials: JD
authors.lastname: Kistler
authors.forename: Nutchapon
authors.initials: N
authors.lastname: Chotigkrai
authors.forename: Pinghong
authors.initials: P
authors.lastname: Xu
authors.forename: Bryan
authors.initials: B
authors.lastname: Enderle
authors.forename: Piyasan
authors.initials: P
authors.lastname: Praserthdam
authors.forename: Cong-Yan
authors.initials: CY
authors.lastname: Chen
authors.forename: Nigel D
authors.initials: ND
authors.lastname: Browning
authors.forename: Bruce C
authors.initials: BC
authors.lastname: Gates
keywords: EXAFS; electron microscopy; platinum; single-site catalysts; zeolites