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http://hdl.handle.net/10773/20198| Title: | Manganese Mono-Substituted Borotungstate: Characterization and Catalytic Application |
| Author: | Balula, Salete S. Santos, Isabel C. M. S. Barbosa, Andre D. S. Schlindwein, Walkiria Cavaleiro, Ana M. V. de Castro, Baltazar Cunha-Silva, Luis |
| Keywords: | KEGGIN-TYPE POLYOXOTUNGSTATES METAL SUBSTITUTED POLYOXOTUNGSTATES HIGH-VALENT MANGANESE HYDROGEN-PEROXIDE OXIDATION |
| Issue Date: | 2013 |
| Publisher: | TRANS TECH PUBLICATIONS LTD |
| Abstract: | The Keggin-type TBA(4)H(2)[BW11Mn(H2O)O-39]center dot H2O (BW11Mn) compound was isolated and characterized. The first sphere of coordination for the manganese atom was determined by EXAFS analysis. Six oxygen atoms were found in the range of 1.80-2.64 angstrom from the manganese. BW11Mn showed to be an active, efficient and selective catalyst for cis-cyclooctene (la) epoxidation in the presence of stoichiometric quantities of H2O2. After 5 h of reaction almost complete conversion was achieved (86% of conversion). Selectivity was always 100 % for the epoxide. |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/20198 |
| DOI: | 10.4028/www.scientific.net/MSF.730-732.975 |
| ISSN: | 0255-5476 |
| Publisher Version: | 10.4028/www.scientific.net/MSF.730-732.975 |
| Appears in Collections: | CICECO - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Manganese mono-substituted borotungstate Characterization and catalytic application_10.4028www.scientific.netMSF.730-732.975.pdf | 590.76 kB | Adobe PDF |  |
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