An efficient one pot conversion of glycerol to lactic acid using bimetallic gold-platinum catalysts on a nanocrystalline CeO2 support

Abstract

The one pot conversion of glycerol to lactic acid using monometallic Au and Pt as well as bimetallic (Au-Pt) catalysts supported on nanocrystalline CeO2 (n-CeO2) in aqueous solution in the presence of a base and oxygen was investigated. Catalytic performance of the bimetallic catalysts is considerably better than the monometallic ones and is indicative for synergistic effects. The bimetallic system shows excellent activity (TOF=1170h-1 for a batchtime of 20min) with a high selectivity (80%) to lactic acid at 99% glycerol conversion (373K, NaOH to glycerol ratio of 4mol/mol 5bar oxygen). The Au-Pt/nCeO2 catalyst was recycled 5 times in a batch set-up without a significant drop in activity and lactic acid selectivity, indicative for good catalyst stability.

Publication DOI: https://doi.org/10.1016/j.apcatb.2013.07.068
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Energy and Bioproducts Research Institute (EBRI)
Additional Information: © 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Uncontrolled Keywords: bimetallic catalysts,glycerol,gold,lactic acid,nanocrystalline ceria,Catalysis,Process Chemistry and Technology,Environmental Science(all)
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2014-04-05
Published Online Date: 2013-08-23
Accepted Date: 2013-07-30
Submitted Date: 2013-04-16
Authors: Kumar Pazhavelikkakath Purushothaman, Rajeesh
van Haveren, J.
van Es, D.S.
Melián-Cabrera, I. (ORCID Profile 0000-0002-5132-6743)
Meeldijk, J.D.
Heeres, H.J.

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