title: Sequential reactions directed by core/shell catalytic reactors.
abstract: Millimeter-sized reactor particles made of permeable polymer doped with catalysts arranged in a core/shell fashion direct sequences of chemical reactions (e.g., alkyne coupling followed by hydrogenation or hydrosilylation followed by hydrogenation). Spatial compartmentalization of catalysts coupled with the diffusion of substrates controls reaction order and avoids formation of byproducts. The experimentally observed yields of reaction sequences are reproduced by a theoretical model, which accounts for the reaction kinetics and the diffusion of the species involved.
authors.affiliation: Department of Chemical and Biological Engineering, Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA.
authors.forename: Yanhu
authors.initials: Y
authors.lastname: Wei
authors.forename: Siowling
authors.initials: S
authors.lastname: Soh
authors.forename: Mario M
authors.initials: MM
authors.lastname: Apodaca
authors.forename: Jiwon
authors.initials: J
authors.lastname: Kim
authors.forename: Bartosz A
authors.initials: BA
authors.lastname: Grzybowski
mesh_terms: D000480:Alkynes / Q000737:chemistry; D002384:Catalysis; D004129:Dimethylpolysiloxanes / Q000737:chemistry; D006865:Hydrogenation; D007700:Kinetics; D008832:Microchemistry / Q000295:instrumentation* / Q000379:methods*; D008956:Models, Chemical; D010165:Palladium / Q000737:chemistry; D010316:Particle Size
chemical_list: D000480:Alkynes; D004129:Dimethylpolysiloxanes; D010165:Palladium