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Sequential Reactions Directed by Core/Shell Catalytic Reactors
Author(s) -
Wei Yanhu,
Soh Siowling,
Apodaca Mario M.,
Kim Jiwon,
Grzybowski Bartosz A.
Publication year - 2010
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200902336
Subject(s) - catalysis , hydrosilylation , diffusion , coupling reaction , alkyne , kinetics , chemical engineering , materials science , chemistry , core (optical fiber) , chemical kinetics , chemical reaction , shell (structure) , organic chemistry , thermodynamics , composite material , physics , quantum mechanics , engineering
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.