Selective hydrogenation of cinnamaldehyde in supercritical CO2 over Me–CeO2 (Me = Cu, Pt, Au): Insight of the role of Me–Ce interaction

CO2 hydrogenation to methanol over Cu/CeO2 and Cu/ZrO2 catalysts: Tuning methanol selectivity via metal-support interaction

“…Liao et al demonstrated the importance of morphology-controlled metal-support interaction, which played a great influence in selectivity for carbon dioxide activation and hydrogenation [4] . The previous results showed that Cu-based catalysts on Ga 2 O 3 , La 2 O 3 significantly decreased the Cu crystallite size and Cu supported on MnO, MgO catalysts facilitated reduction of metal species due to interaction between Cu and the supports, then rendering a positive effect on catalytic performance [5][6][7][8][9] . Meanwhile, an interaction of metal Cu and oxide support disclosed the primary role of the metal/oxide interface on the functionality of Cu-ZnO/ZrO 2 catalysts in the CO 2 to CH 3 OH hydrogenation reaction [10] .…”

Synthesis and CO Oxidation Activity of 1D Mixed Binary Oxide CeO2-LaO x Supported Gold Catalysts

“…Consequently, the gold particles of Au/Ce 0.75 -La 0.25 nanorods were detected as sub-nanometer. Taking into account the particle size, mass content, and chemical states of the gold nanoparticles, gold particles with small diameter highly dispersed on the surface of Ce 0.75 -La 0.25 nanorods and interacted strongly with the support [17, 21, 23]. The strong interaction between gold particles and the support would help improve CO adsorption and accelerate active oxygen spillover to gold particles from the support, so 0.5% Au/Ce 0.75 -La 0.25 nanorods which had relatively high content of gold should exhibit the best CO oxidation activity.…”

Synthesis of Hierarchically Porous Amorphous Alloy Hollow Sphere with High Surface Area as Effective and Selective Catalysts for Cinnamaldehyde Hydrogenation

“…Nevertheless, the composites of noble metal have a higher performance than single noble metal due to the special interaction between them. Hence, so many noble metal composite catalysts have been focused on, such as Pt‐based catalysts,, , Ru/GO‐PNIPAM, Pd‐Ag alloy, Au compounds,, etc. For achieving a high catalytic performance, most of these catalysts have been nanosized to obtain a higher surface area, thus resulting in the increase of catalytic sites, which might induce difficulty in their recycle and cause agglomeration.…”

“…Due to the important position in the flavoring, perfume and pharmaceutical industries, cinnamyl alcohol (COL) has been widely investigated through selective hydrogenation of cinnamaldehyde (CAL) However, selective hydrogenation of C=O bond is not thermodynamically and kinetically favored . Previous works indicate that noble metal displays slightly higher selective for the unsaturated alcohol , . Nevertheless, the composites of noble metal have a higher performance than single noble metal due to the special interaction between them.…”