title: Development of a high-throughput methodology for screening coking resistance of modified thin-film catalysts.
abstract: A high-throughput optical technique has been developed for the rapid screening of coking resistant composition-spread promoted-catalyst libraries during hydrocarbon cracking, in particular for Jet Propellant 8(JP-8) cracking. The libraries are screened by measuring changes in the catalyst's surface color due to the accumulation and burnoff of coke from the surface during JP-8 exposure and catalyst regeneration via oxygen burnoff. This rapid screening method was validated through a comparison of the coking properties of high-surface area powder cracking catalysts, and sputter deposited samples. Experiments on bimetallic (Pt-Gd) catalysts showed systematic trends consistently illustrating the superiority of Pt-Gd alloys to coking due to the presence of gadolinium.
authors.affiliation: Department of Chemical Engineering and Smartstate Center for Strategic Environmental Approaches to the Generation of Electricity (SAGE), University of South Carolina , Columbia, South Carolina 29208, United States.
authors.forename: Kaijian
authors.initials: K
authors.lastname: Yang
authors.forename: John
authors.initials: J
authors.lastname: Bedenbaugh
authors.forename: Hang
authors.initials: H
authors.lastname: Li
authors.forename: Michael
authors.initials: M
authors.lastname: Peralta
authors.forename: Jonathan K
authors.initials: JK
authors.lastname: Bunn
authors.forename: Jochen
authors.initials: J
authors.lastname: Lauterbach
authors.forename: Jason
authors.initials: J
authors.lastname: Hattrick-Simpers
mesh_terms: D000497:Alloys / Q000737:chemistry; D002384:Catalysis; D003077:Coke / Q000032:analysis*; D004867:Equipment Design; D005682:Gadolinium / Q000737:chemistry; D057166:High-Throughput Screening Assays / Q000295:instrumentation*; D007648:Kerosene / Q000032:analysis*; D010100:Oxygen / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry
chemical_list: D000497:Alloys; D003077:Coke; D007648:Kerosene; D010984:Platinum; D005682:Gadolinium; D010100:Oxygen