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The Virtue of Defects: Stable Bromine Production by Catalytic Oxidation of Hydrogen Bromide on Titanium Oxide.
- Source :
- Angewandte Chemie International Edition; Aug2014, Vol. 53 Issue 33, p8628-8633, 6p
- Publication Year :
- 2014
-
Abstract
- Rutile TiO<subscript>2</subscript> is a heavily investigated oxide with, to date, scarce applications in industrial catalysis. The inactivity of this material in oxidations has been related to its inability to dissociate molecular oxygen. Herein we show how rutile catalyzes the oxidation of HBr to Br<subscript>2</subscript> through defect states that are introduced during the reaction. The identification of active, stable, and abundant materials for bromine production is key to the future implementation of Br<subscript>2</subscript>-mediated alkane functionalization processes. The catalytic properties of TiO<subscript>2</subscript> are discussed in comparison to expensive rutile-type oxides, such as RuO<subscript>2</subscript> and IrO<subscript>2</subscript>, on the basis of surface characterization and molecular modeling. [ABSTRACT FROM AUTHOR]
- Subjects :
- BROMINE
CATALYTIC oxidation
HYDROGEN bromide
TITANIUM oxides
RUTILE
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 53
- Issue :
- 33
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 97382181
- Full Text :
- https://doi.org/10.1002/anie.201404022