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Alumoxane Precursors to Designer Catalysts and Catalyst Supports: Catalytic Oxidation of Dichloromethane

Published online by Cambridge University Press:  10 February 2011

Ron L. Cook ,
Cynthia Wong ,
C. Jeff Harlan ,
Aivaras Kareiva  and
Andrew R. Barron
Ron L. Cook*
Affiliation:
TDA Research, Inc., 12345 West 52nd Avenue, Wheat Ridge, CO 80033
Cynthia Wong
Affiliation:
TDA Research, Inc., 12345 West 52nd Avenue, Wheat Ridge, CO 80033
C. Jeff Harlan
Affiliation:
Department of Chemistry, Rice University, Houston, TX 77005
Aivaras Kareiva
Affiliation:
Department of Chemistry, Rice University, Houston, TX 77005
Andrew R. Barron*
Affiliation:
Department of Chemistry, Rice University, Houston, TX 77005 Department of Mechanical Engineering and Materials Science, Rice University, Houston, TX, 77005
*
* Authors to whom correspondence should be addressed.
* Authors to whom correspondence should be addressed.
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Abstract

Carboxylato-alumoxanes are aluminum-oxygen macromolecules consisting of a boehmite-like core surrounded by a sheath of carboxylate groups. The alumoxanes may be processed like organic polymers yet when fired are readily transformed into ceramic oxides. The alumoxanes can be precisely doped at room temperature in aqueous solution with a range of metal cations to prepare novel catalyst and catalyst support materials. The ease of introduction of multiple cations into the alumina lattice via the alumoxane approach provides a method for fine-tuning catalyst support properties and the fabrication of new catalyst materials themselves. Manganese-doped alumina (Mn-Al2O3), formed via the doping of an alumoxane with Mn at room temperature, is presented as an example where the alumoxane route provides enhanced catalytic performance over traditional approaches for the low temperature catalytic oxidation of chlorinated hydrocarbons (CHCs). The Mn-Al2O3 formed from the Mn-doped alumoxane is compared with MnO2/Al2O3 prepared by the incipient wetness method, and commercial Pt/Al2O3 for the oxidation/destruction of dichloromethane (CH2Cl2).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 454: Symposium S – Advanced Catalytic Materials–1996 , 1996 , 169
Copyright
Copyright © Materials Research Society 1997

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References

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