Proton exchange membrane (PEM) fuel cells demonstrated to be feasible energy converters that convert chemical of fuels electrical energy. The technology has proven competitive with conventional such as batteries and internal combustion engines. However; several challenges influence the commercialization this which includes high costs, durability, stability, are contributed by PEM cell catalysts...

cis- and trans-Isomers of the platinum(II) nitrile complexes [PtCl2(NCR)2] (R = NMe2, N(C₅H10), Ph, CH2Ph) were examined as catalysts for hydrosilylation cross-linking of vinyl-terminated polydimethylsiloxane and trimethylsilyl-terminated poly(dimethylsiloxane-co-ethylhydrosiloxane) producing high quality silicone rubbers. Among the tested platinum species the cis-complexes are much more active...

The line between homogeneous and heterogeneous is getting continuously thinner, the bridge that binds them support on which catalyst sits. Supported catalysts have potential to offer both activity of molecular in phase, convenience reusability a difference phase. variety research topics such as nanoparticle supports, coorindated polymers, teathered metal complexes has increased exponentially la...

Ligand 2-diphenylphosphinothiophenol (Hsarp) reacted with Pt(PPh3)4 to yield trans-[PtH(sarp)(PPh3)], which undergoes fast exchange with free PPh3 on the NMR time scale and very slowly and reversibly formed some cis-[PtH(sarp)(PPh3)] over time in solution (11%, 24 h). Reaction of trans-[PtH(sarp)(PPh3)] with Hsarp in boiling toluene gave cis- and trans-[Pt(sarp)2]; the cis isomer being more sta...

An excellent, platinum free fiber counter electrode (CE) was successfully fabricated, consisting of porous, single crystalline titanium nitride (TiN) nanoplates grown on carbon fibers (CF). The fiber-shaped dye-sensitized solar cells (FDSSCs) based on the TiN-CF CE show a high conversion efficiency of 7.20%, comparable or even superior to that of the Pt wire (6.23%).

Pt/Sn-containing MFI zeolites prepared by one-pot hydrothermal methods are highly active and selective catalysts for propane dehydrogenation. An alternative preparation method is reported alongside an in-depth characterization of Pt Sn before after reaction. species dispersed on highly-defective Silicalite-1 show a significantly long catalytic lifetime with improved coke resistance, but increas...