Design of Multicationic Copper-Bearing Layered Double Hydroxides for Catalytic Application in Biorefinery
Journal article, 2023
Ethanol has been used as a renewable hydrogen-donor in the conversion of a lignin model molecule in subcritical conditions. Noble metal-free porous mixed oxides, obtained by activation of Cu−Ni−Al and Cu−Ni−Fe layered double hydroxide (LDH) precursors, have been used as heterogeneous catalysts for Meerwein-Ponndorf-Verley (MPV) hydrogen transfer and further hydrogenation by ethanol dehydrogenation products. Both the Cu/(Cu+Ni) ratio and the nature of the trivalent cation (Al or Fe) affect the activity of the catalysts, as well as the selectivity towards the different steps of the hydrogenation reactions and the cleavage of lignin-like phenylether bonds. Accounting for the peculiar behaviour of Cu2+ and M(III) cations in the synthesis of LDHs, the coprecipitation of the precursors has been monitored by titration experiments. Structural and textural properties of the catalysts are closely related to the composition of the LDH precursors.
lignin
hydrogen transfer
oxydehydrogenation
mixed oxides
ethanol
Author
Iqra Zubair Awan
Lahore Garrison University
Institut Charles Gerhardt Montpellier
University of Bologna
Hoang Phuoc Ho
Chalmers, Chemistry and Chemical Engineering, Chemical Technology
Institut Charles Gerhardt Montpellier
Giada Beltrami
University of Ferrara
Olinda Gimello
Institut Charles Gerhardt Montpellier
Thomas Cacciaguerra
Institut Charles Gerhardt Montpellier
Pierrick Gaudin
Institut Charles Gerhardt Montpellier
Nathalie Tanchoux
Institut Charles Gerhardt Montpellier
Stefania Albonetti
University of Bologna
Annalisa Martucci
University of Ferrara
Fabrizio Cavani
University of Bologna
Didier Tichit
Institut Charles Gerhardt Montpellier
Francesco Di Renzo
Institut Charles Gerhardt Montpellier
ChemCatChem
1867-3880 (ISSN) 1867-3899 (eISSN)
Vol. 15 6 e202201622Subject Categories
Inorganic Chemistry
Other Chemical Engineering
Organic Chemistry
DOI
10.1002/cctc.202201622