The effect of metal precursor on copper phase dispersion and nanoparticle formation for the catalytic transformations of furfural

Mohammed J. Islam, Marta Granollers Mesa, Amin Osatiashtiani, Martin J. Taylor, Jinesh C. Manayil, Christopher M.a. Parlett, Mark A. Isaacs, Georgios Kyriakou

Research output: Contribution to journalArticle

Abstract

The formation of copper-based catalysts ranging from nanoparticles to isolated and dimeric Cu species supported on nanophased alumina is reported and utilised for the catalytic liquid-phase hydrogenation of furfural. The materials were synthesised via wet impregnation using various copper precursors (nitrate, acetate and sulphate) at two different loadings. A high Cu loading (5.0 wt.%) led to the formation of well-defined nanoparticles, while a lower loading (1.0 wt.%) generated a highly dispersed phase consisting mostly of atomic and dimeric Cu species dispersed on Al 2O 3. The catalytic reaction was found to be structure sensitive, promoting decarbonylation reactions with low Cu loading. Copper sulphate derived catalysts were found to severely decrease furfuryl alcohol selectivity from 94.6% to 0.8%, promoting the formation of side reactions. The sulphur-free catalysts represent a greener and more sustainable alternative to the toxic catalysts currently used in industry, operating at milder conditions of 50 °C and 1.5 bar H 2.

Original languageEnglish
Article number119062
JournalApplied Catalysis B: Environmental
Volume273
Early online date28 Apr 2020
DOIs
Publication statusPublished - 15 Sep 2020

Bibliographical note

© 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/

Keywords

  • Copper
  • Furfural
  • Hydrogenation
  • Nanoparticle
  • Single atom catalysts

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