Manganese Mono-Substituted Borotungstate: Characterization and Catalytic Application
authors Balula, SS; Santos, ICMS; Barbosa, ADS; Schlindwein, W; Cavaleiro, AMV; de Castro, B; Cunha-Silva, L
editors Pinto, AMP; Pouzada, AS
nationality International
journal ADVANCED MATERIALS FORUM VI, PTS 1 AND 2
author keywords Polyoxometalate; EXAFS spectroscopy; epoxidation
keywords KEGGIN-TYPE POLYOXOTUNGSTATES; METAL SUBSTITUTED POLYOXOTUNGSTATES; HIGH-VALENT MANGANESE; HYDROGEN-PEROXIDE; OXIDATION
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.
publisher TRANS TECH PUBLICATIONS LTD
issn 0255-5476
year published 2013
volume 730-732
beginning page 975
ending page +
digital object identifier (doi) 10.4028/www.scientific.net/MSF.730-732.975
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000315545200161
  ciceco authors
  impact metrics
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg