Hierarchical Zeolites and their Catalytic Performance in Selective Oxidative Processes

Manuel Ojeda, Aida Grau-Atienza, Rafael Campos, Antonio Angel Romero, Elena Serrano, Jose Maria Marinas, Javier Garcia-Martinez, Rafael Luque

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13 Citations (Scopus)

Abstract

Hierarchical ZSM-5 zeolites prepared using a simple alkali treatment and subsequent HCl washing are found to exhibit unprecedented catalytic activities in selective oxidation of benzyl alcohol under microwave irradiation. The metal-free zeolites promote the microwave-assisted oxidation of benzyl alcohol with hydrogen peroxide in yields ranging from 45-35% after 5min of reaction under mild reaction conditions as well as the epoxidation of cyclohexene to valuable products (40-60% conversion). The hierarchically porous systems also exhibited an interesting catalytic activity in the dehydration of N,N-dimethylformamide (25-30% conversion), representing the first example of transition-metal free catalysts in this reaction.

Original languageEnglish
Pages (from-to)1328-1333
Number of pages6
JournalChemSusChem
Volume8
Issue number8
DOIs
Publication statusPublished - 24 Apr 2015

Keywords

  • dehydrations
  • mesoporous materials
  • microwaves
  • oxidations
  • zeolites
  • FENTON-LIKE OXIDATION
  • HYDROGEN-PEROXIDE
  • MESOPOROUS MATERIALS
  • METAL-FREE
  • POROUS MATERIALS
  • ZSM-5 ZEOLITES
  • MFI ZEOLITES
  • ACTIVE-SITE
  • EPOXIDATION
  • ACID

Cite this

Ojeda, M., Grau-Atienza, A., Campos, R., Angel Romero, A., Serrano, E., Maria Marinas, J., Garcia-Martinez, J., & Luque, R. (2015). Hierarchical Zeolites and their Catalytic Performance in Selective Oxidative Processes. ChemSusChem, 8(8), 1328-1333. https://doi.org/10.1002/cssc.201500124