01650nas a2200157   4500008004100000022001400041245010500055210006900160260000800229300001400237490000700251520104600258100003201304700002501336856013101361       2019                        eng d  a1463-926200aSelective hydrogenation of 5-HMF to 2,5-DMF over a magnetically recoverable non-noble metal catalyst0 aSelective hydrogenation of 5HMF to 25DMF over a magnetically rec  cDEC  a6390-64060 v213 a<p>A non-noble bimetallic catalyst Cu-Fe (1 : 2) was magnetically recoverable, highly selective and efficient for 5-(hydroxymethyl) furfural (5-HMF) hydrogenation to 2,5-dimethyl furan (DMF). The structure-activity correlation was established by characterising the prepared catalyst by XRD, XPS, TEM, ESEM, BET surface area, N-2-adsorption, NH3-TPD, pyridine-IR and H-2-TPR measurements. The high catalytic efficiency was attributed to the oxophilic nature and Lewis acidity of Fe, whereas the selectivity towards DMF was attributed to the Bronsted acidity of CuO and its affinity towards the C-O bond which was further confirmed by NH3-TPD and Py-IR analyses. XPS and XRD revealed the presence of Cu/CuFe2O4 species which catalyzed the hydrogenolysis pathway. TEM and SEM images evidenced the presence of a Cu-Fe nanomorph in which Cu/CuFe2O4 was present. The size of the Cu-Fe nanomorph was found to be between 15.4-17.6 nm. Under the optimised reaction conditions, the highest conversion of 97% and selectivity of 93% were achieved.</p>
1 aSolanki, Bhanupratap, Singh1 aRode, Chandrashekhar  uhttps://library.ncl.res.in/content/selective-hydrogenation-5-hmf-25-dmf-over-magnetically-recoverable-non-noble-metal-catalyst