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

Rajeesh Kumar Pazhavelikkakath Purushothaman, J. van Haveren, D.S. van Es, I. Melián-Cabrera, J.D. Meeldijk, H.J. Heeres

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)92-100
Number of pages9
JournalApplied Catalysis B: Environmental
Volume147
Early online date23 Aug 2013
DOIs
Publication statusPublished - 5 Apr 2014

Bibliographical note

© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • bimetallic catalysts
  • glycerol
  • gold
  • lactic acid
  • nanocrystalline ceria

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    Kumar Pazhavelikkakath Purushothaman, R., van Haveren, J., van Es, D. S., Melián-Cabrera, I., Meeldijk, J. D., & Heeres, H. J. (2014). An efficient one pot conversion of glycerol to lactic acid using bimetallic gold-platinum catalysts on a nanocrystalline CeO2 support. Applied Catalysis B: Environmental, 147, 92-100. https://doi.org/10.1016/j.apcatb.2013.07.068