Journal
JOURNAL OF CATALYSIS
Volume 251, Issue 1, Pages 1-6Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcat.2007.07.024
Keywords
alcohol; microgel; oxidation; dioxygen; water; gold
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Gold nanoclusters of small size (2.5 nm) and narrow size distribution were synthesized in solution using tailor-made soluble cross-linked polymers (microgels) as exotemplates and stabilizers. The resulting microgel-stabilized nanoclusters could be conveniently isolated by precipitation, stored in the solid state, and redispersed in water and polar organic solvents. They were found to exhibit remarkable catalytic activity (average TOF up to 960 h(-1)) in the aerobic oxidation of benzylic and aliphatic alcohols and also of polyols in water under mild conditions (50-70 degrees C, 1-3 atm O-2). (c) 2007 Elsevier Inc. All rights reserved.
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