Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 9, Pages 2661-2664Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201410360
Keywords
heterogeneous catalysis; magnetic stirring bars; microscopic systems; nanoparticles
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Funding
- National Basic Research Program of China [2011CB933700]
- National Natural Science Foundation of China [NSFC 21333009, 21273244]
- Chinese Academy of Sciences [KJCX2-YW-N41]
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Nanometer-sized magnetic stirring bars containing Pd nanoparticles (denoted as Fe3O4-NC-PZS-Pd) for heterogeneous catalysis in microscopic system were prepared through a facile two-step process. In the hydrogenation of styrene, Fe3O4-NC-PZS-Pd showed an activity similar to that of the commercial Pd/C catalyst, but much better stability. In microscopic catalytic systems, Fe3O4-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 Fe3O4-NC-PZS-Pd could be used as nanoscale stirring bars in nanoreactors.
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