Exploratory catalyst screening studies on the base free conversion of glycerol to lactic acid and glyceric acid in water using bimetallic Au-Pt nanoparticles on acidic zeolites

Rajeesh Kumar Pazhavelikkakath Purushothaman, J. van Haveren, A. Mayoral, I. Melián-Cabrera, H.J. Heeres

Research output: Contribution to journalArticle

Abstract

The base free oxidation of glycerol with molecular oxygen in water using bimetallic Au-Pt catalysts on three different acidic zeolite supports (H-mordenite, H-β and H-USY) was explored in a batch setup. At temperatures between 140 and 180 °C, lactic acid formation was significant and highest selectivity (60 % lactic acid at 80 % glycerol conversion) was obtained using Au-Pt/USY-600 (180 °C). A selectivity switch to glyceric acid (GLYA) was observed when the reactions were performed at 100 °C. Highest conversion and selectivity towards GLYA were obtained with Au-Pt/H-β as the catalyst (68 % selectivity at 68 % conversion).

Original languageEnglish
Pages (from-to)1445-1453
Number of pages9
JournalTopics in Catalysis
Volume57
Issue number17-20
Early online date20 Sep 2014
DOIs
Publication statusPublished - 30 Nov 2014

Fingerprint

Zeolites
Lactic acid
Glycerol
Lactic Acid
Screening
Nanoparticles
Catalysts
Acids
Water
Molecular oxygen
Catalyst selectivity
Catalyst supports
Switches
Oxidation
Temperature
glyceric acid
mordenite

Keywords

  • glycerol
  • gold catalysts
  • lactic acid
  • oxidation
  • zeolites

Cite this

Kumar Pazhavelikkakath Purushothaman, Rajeesh ; van Haveren, J. ; Mayoral, A. ; Melián-Cabrera, I. ; Heeres, H.J. / Exploratory catalyst screening studies on the base free conversion of glycerol to lactic acid and glyceric acid in water using bimetallic Au-Pt nanoparticles on acidic zeolites. In: Topics in Catalysis. 2014 ; Vol. 57, No. 17-20. pp. 1445-1453.
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abstract = "The base free oxidation of glycerol with molecular oxygen in water using bimetallic Au-Pt catalysts on three different acidic zeolite supports (H-mordenite, H-β and H-USY) was explored in a batch setup. At temperatures between 140 and 180 °C, lactic acid formation was significant and highest selectivity (60 {\%} lactic acid at 80 {\%} glycerol conversion) was obtained using Au-Pt/USY-600 (180 °C). A selectivity switch to glyceric acid (GLYA) was observed when the reactions were performed at 100 °C. Highest conversion and selectivity towards GLYA were obtained with Au-Pt/H-β as the catalyst (68 {\%} selectivity at 68 {\%} conversion).",
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Exploratory catalyst screening studies on the base free conversion of glycerol to lactic acid and glyceric acid in water using bimetallic Au-Pt nanoparticles on acidic zeolites. / Kumar Pazhavelikkakath Purushothaman, Rajeesh; van Haveren, J.; Mayoral, A.; Melián-Cabrera, I.; Heeres, H.J.

In: Topics in Catalysis, Vol. 57, No. 17-20, 30.11.2014, p. 1445-1453.

Research output: Contribution to journalArticle

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AU - Kumar Pazhavelikkakath Purushothaman, Rajeesh

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KW - gold catalysts

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