Highly selective solid acid catalyst H1-xTi2(PO4)3-x(SO4)x for non-oxidative dehydrogenation of methanol and ethanol

Gheorghiţa Mitran, Daniel G. Mieritz, Dong Kyun Seo

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The conversion of alcohols towards aldehydes in the presence of catalysts by non-oxidative dehydrogenation requires special importance from the perspective of green chemistry. Sodium (Na) super ionic conductor (NASICON)-type hydrogen titanium phosphate sulfate (HTPS; H1-xTi2(PO4)3-x(SO4)x, x = 0.5-1) catalysts were synthesized by the sol-gel method, characterized by N2 gas sorption, X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), NH3 temperature-programmed desorption (NH3-TPD), ultraviolet-visible (UV-VIS) spectroscopy, and their catalytic properties were studied for the non-oxidative dehydrogenation of methanol and ethanol. The ethanol is more reactive than methanol, with the conversion for ethanol exceeding 95% as compared to methanol, where the conversion has a maximum value at 55%. The selectivity to formaldehyde is almost 100% in methanol conversion, while the selectivity to acetaldehyde decreases from 56% to 43% in ethanol conversion, when the reaction temperature is increased from 250 to 400 °C.

Original languageEnglish
Article number95
JournalCatalysts
Volume7
Issue number3
DOIs
Publication statusPublished - Mar 22 2017

Keywords

  • Dehydrogenation
  • Ethanol
  • Hydrogen titanium phosphate sulfate
  • Methanol

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

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