Nitrogen- and oxygen-functionalized carbon nanotubes supported Pt-based catalyst for the selective hydrogenation of cinnamaldehyde

Insight into the structure evolution and the associated catalytic behavior of highly dispersed Pt and PtSn catalysts supported on La2O2CO3 nanorods

“…Heteroatoms of Pt and a transition metal (M ¼ Fe, Co, Ge or Sn) are reported to perform high selectivity towards unsaturated alcohols and produce changes in the reactivity. [9][10][11][12][13][14] The promotion effect of M on the catalytic behavior of Pt catalyst can be generally interpreted in terms of geometric (dilution of Pt sites by PtM alloys or MO x species) or electronic (the electron density of Pt) aspects. A plot of reaction selectivity to cinnamyl alcohol from cinnamaldehyde hydrogenation versus the rst row of transition metals as dopers of Pt gave a typical volcano shape curve, which is proposed to be derived from the difference in dband center position from the Fermi level when the Pt surface is electronically modied by the transition metal.…”

Highly Stable Dispersion of Carbon Nanotubes in Deep Eutectic Solvent for the Preparation of CNT‐Embedded Carbon Xerogels for Supercapacitors

“…e. quinone or keto oxygen at 531.8 eV (O-I), ether or phenol groups at 532.9 eV (O-II) and carboxylic groups at 534 eV (O-III) (Figure 5e-g). [45] The existence of these functional oxygen groups along with the nitrogen functionalities, on one hand, can enhance the wettability of the electrode materials in aqueous electrolyte, on the other hand, it can also provide the electrodes with extra pseudocapacitance through faradaic reactions. [46] Nitrogen adsorption/desorption results demonstrate that although it significantly changed the morphology structure of the materials, the oxidation process basically preserves the pore configuration of the carbons (Figure S4a-b).…”

Selective Hydrogenation of 3-Nitrostyrene over a Co-promoted Pt Catalyst Supported on P-containing Activated Charcoal

“…Supported PtCo catalysts have been studied in catalytic hydrogenation due to their unique electronic, geometric, and structural properties, and these bimetallic catalysts show excellent catalytic performances in the selective hydrogenation of C=O, C=C, N=O, and others [43][44][45][46][47][48]. For cinnamaldehyde hydrogenation, for instance, 91% selectivity to cinnamyl alcohol (COL) was obtained on Pt 3 Co/Co(OH) 2 catalystsowning to the modified electron density of Pt [49].…”