Journal
CATALYSIS COMMUNICATIONS
Volume 9, Issue 15, Pages 2570-2573Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2008.07.013
Keywords
manganese; potassium; oxidation; aromatic alcohol; molecular oxygen
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Funding
- AcRF tier 2 [ARC 13/07 M45120006]
- Universities of Henan Province of China
- NUS [C-380-003-003-001, A*STAR/MOE RP 3979908M, A*STAR 12 105 0038]
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The aerobic oxidation of aromatic alcohol on alkali metal promoted Mn/C catalysts has been investigated. A dramatic improvement of the oxidation activity can be observed when the Mn/C catalyst is modified with potassium ions. Characterizations of Raman and X-ray absorption fine structure (XAFS) evidence that potassium ions induce a large local distortion to Mn-O octahedrons in supported manganese oxides with coexistence of Mn2+ and Mn3+, which has been suggested to be a vital factor to enhance the activation Of 02 for the oxidation of benzylic alcohol. (C) 2008 Elsevier B.V. All rights reserved.
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