Tuning the catalytic performance of Pt/SiO2 catalysts by CoOx modification for selective hydrogenations of unsaturated carbonyl compounds

Insights into the electronic modulation of bimetallic Pt–Sn cluster for the selective hydrogenation of 1,3-butadiene

“…Owing to its smallest possible number of vacant d-orbitals, which are favorable for the chemisorption of reactants but without impeding their removal, transition metal platinum (Pt) possesses great reactivity in the hydrogenation reaction and therefore is widely employed in the preparation of catalysts for the selective hydrogenation of unsaturated hydrocarbons. [1][2][3][4] In this research frontier, most works for the rational design and development of Pt-based catalysts are focused on the fundamental aspects through the manipulation of the shape/size of Pt, [5][6][7] modulation of coordination environment of Pt, 8,9 optimization of metal-support interaction, [10][11][12][13][14] and direct tuning of electronic property. 15,16 These studies offer great opportunity in the pursuit of continuously improved hydrogenation reactivity of Pt catalysts in the use of ultrahigh purity H 2 .…”

Selective Hydrogenation of Aromatic Ketone to Aromatic Alcohol over Pd Single-Atom Catalysts

“…Selective hydrogenation of aromatic ketones to aromatic alcohols is a prominent and economically valuable reaction that has been widely employed in the production of fine chemicals. − Particularly, acetophenone (AP) hydrogenation has been extensively investigated as a classical reaction since 1-phenylethanol (PhE), the reduction product of AP, is an important organic intermediate widely applied in the manufacture of fragrances and pharmaceuticals . At present, the activity and selectivity are the main challenges to be faced in the preparation of PhE by AP hydrogenation since the activation of CO bonds is difficult, and the dehydration of the hydroxyl group for PhE will lead to byproducts of ethylbenzene. , Therefore, a catalyst with a high selectivity and activity for AP is considered to be of high value.…”