Effect of the anchoring group (carboxylate vs phosphonate) in Ru-complex-sensitized Ti[O.sub.2] on hydrogen production under visible light

Article Abstract:

Six Ru-bipyridyl complexes having di-, tetra-, and hexacarboxylate and di-, tetra- and hexaphosphonate as the anchoring group, are synthesized and six different sensitized Ti[O.sub.2] are prepared using them. Their visible light reactivity for hydrogen production in aqueous suspension is investigated. The effects of the anchoring group on the sensitized production of hydrogen are found to be different from those on the dye-sensitized solar cell.

Primary nonferrous metals, not elsewhere classified, Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum), Industrial Gas Manufacturing, Industrial gases, Hydrogen, Ruthenium, Electric properties, Chemical synthesis

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Excess Gibbs potential model for multicomponent hydrogen clathrates

Article Abstract:

A new thermodynamic calculation procedure utilizing an excess Gibbs potential is described to predict the equilibrium conditions of multicomponent gas hydrates containing hydrogen. The model prediction is good for the ternary and quaternary mixture hydrates, but its error has increased with increasing pressure and temperature under the presence of THF (tetra-hydrofuran).

Science & research, Research, Thermal properties, Thermodynamics, Gibbs' free energy, Hydrates, Chemical properties

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