Hydrogenation of 3,4-epoxy-1-butene over Cu–Pd/SiO2 catalysts prepared by electroless deposition

Platinum–ruthenium bimetallic clusters on graphite: a comparison of vapor deposition and electroless deposition methods

“…During deposition, a +800 V bias was applied to the surface in order to repel the positively charged metal ions that are known to create defect sites for metal nucleation on HOPG. 36,45,53 Concentrations of the metals in ppm are calculated from the mass of the metal only divided by the total mass of the solution. 46 The general procedures for electroless deposition experiments have been described in detail elsewhere.…”

“…[16][17][18][19][20] The ligand (electronic) effect proposes that electronic interactions between Pt and Ru lower the energy of the d band of Pt and cause CO to bind less strongly to Pt. 37,38,[43][44][45] Studies of methanol electrooxidation with Pt-Ru catalysts on carbon (XC-72) by Weidner and coworkers show that 50% Pt-50%Ru catalysts prepared by electroless deposition of Ru on commercial Pt/C have higher activity than the commercial bimetallic catalysts (E-TEK) of the same composition. 9,14,20 The most active catalysts for methanol electro-oxidation are composed of highly dispersed, nanosized Pt-Ru particles deposited on a carbon support, but small variations in preparation conditions have a significant impact on activity.…”

“…[35][36][37][38][39][40][41] In this method, the secondary metal in the form of a metallic salt is selectively deposited from solution on the surface of the primary metal, which has been activated by a reducing agent, rather than on the catalyst support. 36,37,[42][43][44] Studies of methanol electro-oxidation with Pt-Ru catalysts on carbon (XC-72) by Weidner and coworkers show that 50% Pt-50% Ru catalysts prepared by electroless deposition of Ru on commercial Pt/C have higher activity than the commercial bimetallic catalysts (E-TEK) of the same composition. 45 This higher activity is attributed to better mixing of Pt and Ru on the atomic scale, given that the commercial Pt-Ru catalysts are known to be poorly mixed, with particles of pure Ru and pure Pt coexisting with bimetallic particles.…”

Surface properties and catalytic performance of Pt–Ag supported on silica – The effect of preparation methods

“…Another technique for metal loading on silica is the electroless deposition (ED), wherein a metallic salt is reduced onto a pre-existing catalytic surface that has been activated by a chemical reducing agent (formaldehyde, hydrazine, borohydride, etc.) [18]. Schaal et al [19] have reported that bimetallic Ag-Pt catalysts prepared by electroless deposition were more responsive to changes in Ag loading when compared to the catalyst obtained by incipient wetness methods.…”

Direct Synthesis of Hydrogen Peroxide Over Au–Pd Catalysts Prepared by Electroless Deposition

“…ED has been described in detail elsewhere [9][10][11][12][13][14][15], and analogous to the approach of Rebelli et al, [12] we prepared Au-Pd/SiO 2 catalysts with different Au coverages; and, we characterized the nanoparticles using CO chemisorption, scanning transmission electron microscopy and energy dispersive X-ray spectroscopy (STEM-EDS), Fourier transform infrared spectroscopy (FTIR) of adsorbed CO, and inductively coupled plasma-atomic emission spectroscopy (ICP-AES), and we evaluated catalyst performance for the H 2 O 2 direct synthesis reaction.…”