title: The control of Pt and Ru nanoparticle size on high surface area supports.
abstract: Supported Ru and Pt nanoparticles are synthesized by the method of strong electrostatic adsorption and subsequently treated under different steaming-reduction conditions to achieve a series of catalysts with controlled particle sizes, ranging from 1 to 8 nm. While in the case of oxidation-reduction conditions, only Pt yielded particles ranging from 2.5 to 8 nm in size and a loss of Ru was observed. Both Ru and Pt sinter faster in air than in hydrogen. This methodology allows the control of particle size using a "production-scalable" catalyst synthesis method which can be applied to high surface area supports with common metal precursors.
authors.affiliation: Department of Chemical Engineering, University of South Carolina, 301 Main Street, Columbia, SC 29208, USA. regalbuj@cec.sc.edu.
authors.forename: Qiuli
authors.initials: Q
authors.lastname: Liu
authors.forename: Upendra A
authors.initials: UA
authors.lastname: Joshi
authors.forename: Kevin
authors.initials: K
authors.lastname: Über
authors.forename: John R
authors.initials: JR
authors.lastname: Regalbuto