The deposition of metal nanostructures (wires and particles) on a graphite surface from an aqueous electrolyte solution was induced by galvanic displacement, via the oxidation of insoluble crystals of a ferrocene derivative (either n-butyl ferrocene or decamethyl ferrocene) present on the same substrate. Micron-to-millimetre-scale crystallites of decamethyl ferrocene were deposited on the graph...

behaviors of simultaneous removal of no and so2 using the coculture of anaerobic denitrifying bacteria and sulfate reducing bacteria were investigated in a bench-scale biotrickling-filter. approximate 20 days were required to use the landfill leachate as the microbial seed to develop the biofilm on the surface of packing material. when the combined no/so2 removal biotrickling-filter was operate...

secondary clarifiers with large areas are widely applied in wastewater treatment plants. a pilot study was conducted to examine the possibility of applying one and two-stage inclined tube settlers instead of conventional secondary clarifiers. tube diameter in the first stage of the two-stage settler was wide as the conventional ones, but in the second stage, it was narrow to improve the efficie...

The pyridylalkylamine copper complex [Cu(tmpa)(L)]2+ has previously been proposed to reduce dioxygen via a dinuclear resting state, based on experiments in organic aprotic solvents using chemical reductants. Conversely, mononuclear reaction mechanism was observed under electrochemical conditions neutral aqueous solution. We have investigated the oxygen and hydrogen peroxide reduction catalysed ...

Three new ionic salts containing [M(CN)8]4? (M = MoIV and WIV) were prepared using large complex cations based on a non-conventional motif built with the tris(2-aminoethyl)amine (noted hereafter tren) ligand, [{M’(tren)}3(?-tren)]6+ (M’ CuII ZnII). The crystal structures of three compounds show that atomic arrangement is formed by relatively isolated anionic cationic entities. irradiated blue l...

Metal-catalyzed C–N cross-coupling generally forms C−N bonds by reductive elimination from metal complexes bearing covalent C- and N-ligands. We have identified a Cu-mediated that uses dative N-ligand in the bond-forming event, which, contrast to conventional methods, generates reactive cationic products. Mechanistic studies suggest process operates via transmetalation of an aryl organoboron Cu...