title: Evaluation of the Two-Dimensional Performances of Low Activity Planar Catalysts: Development and Validation of a True Scanning Reactor.
abstract: The development of a scanning reactor for planar catalysts is presented here. With respect to other existing models, this reactor is able to scan catalysts even with low turnover frequencies with a minimum sensed circular area of approximately 6 mm in diameter. The downstream gas analysis is performed with a quaprupole mass spectrometer. The apparatus performances are presented for two different reactions: the hydrogenation of butadiene over palladium films and the oxidation of CO over a gold/titania catalyst. With the final setup, true scans in both X and Y directions (or even in a previously defined complex directional pattern) are possible within a scan speed ranging from 0.1 to 5.0 mm/min. Finally, this apparatus aims at becoming a valuable tool for high throughput and combinatorial experimentation to test patterned active surfaces and catalytic libraries.
authors.affiliation: Institute of Molecular Science and Technologies, CNR , Via Golgi 19, 20133 Milan, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Marelli
authors.affiliation: Department of Science and High Technology, University of Insubria , 22100 Como, Italy.
authors.forename: A
authors.initials: A
authors.lastname: Nemenyi
authors.affiliation: Institute of Molecular Science and Technologies, CNR , Via Golgi 19, 20133 Milan, Italy.
authors.forename: V
authors.initials: V
authors.lastname: Dal Santo
authors.affiliation: Institute of Molecular Science and Technologies, CNR , Via Golgi 19, 20133 Milan, Italy.
authors.forename: R
authors.initials: R
authors.lastname: Psaro
authors.affiliation: Department of Science and High Technology, University of Insubria , 22100 Como, Italy.
authors.forename: L
authors.initials: L
authors.lastname: Ostinelli
authors.affiliation: Department of Science and High Technology, University of Insubria , 22100 Como, Italy.
authors.forename: D
authors.initials: D
authors.lastname: Monticelli
authors.affiliation: Department of Science and High Technology, University of Insubria , 22100 Como, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Dossi
authors.affiliation: Department of Science and High Technology, University of Insubria , 22100 Como, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Recchia
mesh_terms: D002070:Butadienes / Q000737:chemistry*; D002248:Carbon Monoxide / Q000737:chemistry*; D002384:Catalysis; D020650:Combinatorial Chemistry Techniques / Q000295:instrumentation*; D004867:Equipment Design; D006046:Gold / Q000737:chemistry*; D006865:Hydrogenation; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D014025:Titanium / Q000737:chemistry*
chemical_list: D002070:Butadienes; C009495:titanium dioxide; D010165:Palladium; D006046:Gold; D002248:Carbon Monoxide; D014025:Titanium; C031763:1,3-butadiene
keywords: catalyst libraries; heterogeneous catalysis; high throughput experimentation; scanning reactor