Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 18, Issue 9, Pages 2639-2645Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201102903
Keywords
butadiene; cinnamaldehyde; nanostructures; palladium; selective hydrogenation
Categories
Funding
- NSFC [20725102, 20921001, 20903119]
- State Key Project of Fundamental Research for Nanoscience and Nanotechnology [2011CB932402]
- Program for New Century Excellent Talents in University (NCET)
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Palladium is a key catalyst invaluable to many industrial processes and fine-chemical synthesis. Although recent progress has allowed the synthesis of Pd nanoparticles with various shapes by using different techniques, the facile synthesis of Pd nanocrystals and turning them into a highly active, selective, and stable catalyst systems still remain challenging. Herein, we report the highly selective one-pot synthesis of monodisperse Pd cluster nanowires in aqueous solution; these consist of interconnected nanoparticles and may serve as highly active catalysts because of the enrichment of high index facets on the surface, including {443}, {331}, and {221} steps. For the first time, carbon nanotube and ?-Al2O3 immobilized Pd cluster nanowires showed highly enhanced catalytic performance in the liquid-phase selective hydrogenation of cinnamaldehyde and gas-phase hydrogenation of 1,3butadiene relative to immobilized Pd icosahedra and nanocubes, as well as commercial Pd catalysts.
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