TY - JOUR
T1 - The effect of metal precursor on copper phase dispersion and nanoparticle formation for the catalytic transformations of furfural
AU - Islam, Mohammed J.
AU - Granollers Mesa, Marta
AU - Osatiashtiani, Amin
AU - Taylor, Martin J.
AU - Manayil, Jinesh C.
AU - Parlett, Christopher M.a.
AU - Isaacs, Mark A.
AU - Kyriakou, Georgios
N1 - © 2020, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
PY - 2020/9/15
Y1 - 2020/9/15
N2 - 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.
AB - 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.
KW - Copper
KW - Furfural
KW - Hydrogenation
KW - Nanoparticle
KW - Single atom catalysts
UR - https://linkinghub.elsevier.com/retrieve/pii/S092633732030477X
UR - http://www.scopus.com/inward/record.url?scp=85084654479&partnerID=8YFLogxK
U2 - 10.1016/j.apcatb.2020.119062
DO - 10.1016/j.apcatb.2020.119062
M3 - Article
SN - 0926-3373
VL - 273
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 119062
ER -