A comprehensive structural/architectural evaluation of the PtRu (1:1) alloy and Ru@Pt core-shell nanoparticles (NPs) provides spatially resolved structural information on sub-5 nm NPs. A combination of extended X-ray absorption fine structure (EXAFS), X-ray absorption near edge structure (XANES), pair distribution function (PDF) analyses, Debye function simulations of X-ray diffraction (XRD), a...

Ru nanoparticles are prepared via solvothermal synthesis with allotropism control. Both fcc and hcp samples active catalysts for the hydrogen evolution reaction, but sample is stable during 12 hour operation.

The cleavage of C−O linkages in aryl ethers biomass-derived lignin compounds without hydrogenation the aromatic rings is a major challenge for production sustainable mono-aromatics. Conventional strategies over heterogeneous metal catalysts require addition homogeneous base additives causing environmental problems. Herein, we propose Ru/C catalyst modified by Br atoms selective direct bonds dip...

Pyrolysis of ammonium alginate films containing Ru(NH3)6Cl3 leads to the formation Ru nanoparticles (NPs) supported on defective graphene films. The procedure allows controlling preferential facet orientation small NPs (5–20 nm), either 002 when pyrolysis is carried out under Ar atmosphere or and 101 planes for in presence H2. a metal difficult prepare compared noble metals due its higher react...

The surface temperature on catalytically active magnetic nanoparticles (Fe 2.2 C@Ru) was estimated from their catalytic performances under induction. In different solvents, temperatures well-above the boiling point were determined.

Dye sensitized solar cells (DSCs) have received considerable attention once this technology offers economic and environmental advantages over conventional photovoltaic (PV) devices. The PV performance of a DSC relies on the characteristics of its photoanode, which typically consists of a nanocrystalline porous TiO2 film, enabled with a large adsorptive surface area. Dye molecules that capture p...

[Ru(terpy)(bpy)(L)]PF6 complexes, where terpy is 2,2΄:6′,2″– terpyridine, bpy is 2,2΄ - bipyridine and L is monoanions of  4 - bromophenylcyanamide (4 - Brpcyd), 4-methoxyphenylcyanamide (4 - MeOPcyd), 2, 4 - dibromophenylcyanamide (2,4 - Br2pcyd), 2,4-dimethylphenylcyanamide (2,4 - Me2pcyd), 2 - methylphenylcyanamide  (2 ...

Ionic liquids are a stabilizing medium for the in situ synthesis of ruthenium nanoparticles. Herein we show that the addition of molecular polar solutes to the ionic liquid, even in low concentrations, eliminates the role of the ionic liquid 3D structure in controlling the size of ruthenium nanoparticles, and can induce their aggregation. We have performed the synthesis of ruthenium nanoparticl...

Titania nanoparticles sensitized with metal-free organic dye exhibit high visible-light activities for the redox conversion of water pollutants in a wider pH range in comparison with TiO(2) sensitized with ruthenium bipyridyl complexes.