Chemistry (Feb 2023)

Vapor-Phase Oxidant-Free Dehydrogenation of 2,3- and 1,4-Butanediol over Cu/SiO<sub>2</sub> Catalyst Prepared by Crown-Ether-Assisted Impregnation

  • Enggah Kurniawan,
  • Shuya Hosaka,
  • Masayuki Kobata,
  • Yasuhiro Yamada,
  • Satoshi Sato

DOI
https://doi.org/10.3390/chemistry5010030
Journal volume & issue
Vol. 5, no. 1
pp. 406 – 421

Abstract

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A silica-supported copper (Cu/SiO2) catalyst containing highly dispersed Cu nanoparticles was prepared via a crown-ether-assisted impregnation method. A 12-crown-4-ether-assisted Cu/SiO2 catalyst outperformed several Cu/SiO2 catalysts prepared with various organic additives in the dehydrogenation of 2,3- and 1,4-butanediol. It was found that the catalytic activity, i.e., the formation rate of acetoin from 2,3-butanediol and that of γ-butyrolactone from 1,4-butanediol, was proportional to the copper surface area.

Keywords