Carbon-supported Pt–Ru nanoparticles prepared in glyoxylate-reduction system promoting precursor–support interaction

Selective liquid phase hydrogenation of furfural to furfuryl alcohol by Ru/Zr-MOFs

“…Two RuO x species were found in fresh Ru/UiO-66, located at 281.2 eV and 282.9 eV (Ru 3d 5/2 ). The feature at 281.2 eV can be ascribed to RuO 2 , whereas the nature of the feature at 282.9 eV has been ascribed to unscreened RuO 2 [51,52], hydrated RuO 2 (RuO 2 ·xH 2 O) [53,54] or RuO 3 [55,56]. Since Ru 6+ is not stable, we ascribe the feature at 282.9 eV to Ru 4+ , present either as unscreened or hydrated RuO 2 .…”

Carbon-Supported Pt-Based Alloy Electrocatalysts for the Oxygen Reduction Reaction in Polymer Electrolyte Membrane Fuel Cells: Particle Size, Shape, and Composition Manipulation and Their Impact to Activity

“…71−78 According to Bogotski and Snudkin,84 however, the rise in electron density on Pt-alloy could be attributed to carbon support synergism on the basis of changes in the electronic state of Pt after its deposition, thus enhancing the electrocatalytic activity. Also, it should be noted that during supported Pt-alloy catalyst formation, Park et al 85 evidenced the presence of the interaction between metal precursor and carbon support in the carbon supported Pt−Ru system. They found that the deposition and dispersion of Pt and Pt−Ru nanoparticles were largely dependent on the surface chemistry of carbon support, which was closely related to the anchorage of metal precursor ions (i.e., precursor−support interaction 86−90 ) and nanoparticles.…”

Highly Efficient Ambient Temperature CO2 Photomethanation Catalyzed by Nanostructured RuO2 on Silicon Photonic Crystal Support

“…The average diameter and mass of the RuO 2 nanocrystals dispersed on the i-Si-o supports were determined to be 24 nm and 318 µg cm −2 , respectively (Figure S1a, Supporting Information). [51] Figure S2d (Supporting Information) displays the Si 2p spectrum of the ncRuO 2 /i-Si-o sample, which shows that the surface of i-Si-o is oxidized as SiO 2 . The average size of the RuO 2 nanocrystals on the silicon wafer is ≈45 nm, almost twice the size but nearly the same mass as the RuO 2 loaded on the inverse photonic crystal.…”