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Nanoscale Magnetic Stirring Bars for Heterogeneous Catalysis in Microscopic Systems
Author(s) -
Yang Shuliang,
Cao Changyan,
Sun Yongbin,
Huang Peipei,
Wei Fangfang,
Song Weiguo
Publication year - 2015
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201410360
Subject(s) - catalysis , nanoreactor , nanoscopic scale , materials science , chemical engineering , styrene , nanotechnology , nanoparticle , heterogeneous catalysis , nanometre , chemistry , copolymer , organic chemistry , composite material , polymer , engineering
Abstract Nanometer‐sized magnetic stirring bars containing Pd nanoparticles (denoted as Fe 3 O 4 ‐NC‐PZS‐Pd) for heterogeneous catalysis in microscopic system were prepared through a facile two‐step process. In the hydrogenation of styrene, Fe 3 O 4 ‐NC‐PZS‐Pd showed an activity similar to that of the commercial Pd/C catalyst, but much better stability. In microscopic catalytic systems, Fe 3 O 4 ‐NC‐PZS‐Pd can effectively stir the reaction solution within microdrops to accelerate mass transfer, and displays far better catalytic activity than the commercial Pd/C for the hydrogenation of methylene blue in an array of microdroplets. These results suggested that the Fe 3 O 4 ‐NC‐PZS‐Pd could be used as nanoscale stirring bars in nanoreactors.