Journal
RSC ADVANCES
Volume 5, Issue 47, Pages 37581-37584Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra04389a
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Funding
- Energy Innovation Laboratory of BP company
- National Natural Science Foundation of China [21403215]
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Esters (methyl acetate, ethyl acetate, dimethyl oxalate) can oxidize Cu-0 of the reduced Cu/SiO2 catalyst to Cu+ and the obtained Cu+ can be reduced back to Cu-0 by H-2 under reaction conditions. Cu-0 and Cu+ are in a dynamic cycle during ester hydrogenation. The ratio of Cu+/Cu-0 in the presence of esters under reaction conditions is probably different from that in the absence of esters under characterization conditions. The effect of the dynamic cycle on the Cu+/Cu-0 ratio should be taken into consideration when establishing the relationship between the Cu+/Cu-0 ratio and reaction performance.
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