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

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

Authors

Mohammed J. Islam

Marta GranollersMesa

Amin Osatiashtiani

Jinesh C. Manayil

Christopher M.A. Parlett

Mark A. Isaacs

Georgios Kyriakou



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 wt%) led to the formation of well-defined nanoparticles, while a lower loading (1 wt%) generated a highly dispersed phase consisting mostly of atomic and dimeric Cu species dispersed on Al2O3. 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 H2.

Journal Article Type Article
Journal Applied Catalysis B: Environmental
Print ISSN 0926-3373
Publisher Elsevier
Peer Reviewed Peer Reviewed
Article Number 119062
APA6 Citation Islam, M. J., GranollersMesa, M., Osatiashtiani, A., Taylor, M. J., Manayil, J. C., Parlett, C. M., …Kyriakou, G. (in press). The effect of metal precursor on copper phase dispersion and nanoparticle formation for the catalytic transformations of furfural. Applied catalysis. B, Environmental, https://doi.org/10.1016/j.apcatb.2020.119062
DOI https://doi.org/10.1016/j.apcatb.2020.119062
Keywords Process Chemistry and Technology; General Environmental Science; Catalysis; Copper; Furfural; Nanoparticle, Hydrogenation; Single atom catalysts
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