Electrocatalytic reduction of alpha, omega-diiodoalkanes I(CH2)mI (m = 1-8) by C60 n- (n = 1-3) anions in solution and at the C60 film-modified electrodes

Article Abstract:

Experiments were performed to describe the electroreduction of the alpha, omega-diiodoalkane homologous series I(CH2)mI(m = 1-8) catalyzed by the C (sub 60)(super n-). Cyclic voltammetry and rotating disk electrode (RDE) voltammetric analyses were employed. The homologous series was catalyzed by the C (sub 60)(super n-) anions in 0.1 M (TBA)-PF6 in benzonitrile and at C60 film-modified electrode in 0.1 M (TBA)PF6 in acetonitrile. RDE voltammetry results revealed a trend on the number of carbon atoms of the alkyl chain of the alpha, omega-diiodoalkane samples.

Catalysts, Oxidation-reduction reaction, Oxidation-reduction reactions

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Electroless deposition of metal nanoislands on aminothiolate-functionalized Au(111) electrodes

Article Abstract:

Selective electroless deposition (ELD) can be used as a tool for electrochemical nanostructuring. Chemical reduction of palladium ions bound to an aminothiolate layer on an Au(111) surface fabricated metallic palladium islands of monoatomic height. These are capable of activating the ELD of cobalt. The growth of cobalt islands is related to the oxygen concentration in the deposition bath and the aminothiolate concentration in mixed amino-/alkanethiolate self-assembled monolayers.

Gold, Electrometallurgy, Thiols, Electroless plating

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An approach to ideal semiconductor electrodes for efficient photoelectrochemical reduction of carbon dioxide by modification of small metal particles

Article Abstract:

The photoelectrochemical reduction of carbon dioxide on p-type silicon electrodes modified with small metal particles has been investigated. The results showed that methane, ethylene and carbon monoxide were produced by electrodes in carbon dioxide-saturated aqueous electrolyte under illumination. Metal-particle-coated p-type silicon electrodes were shown to have high catalytic activity for electrode reactions and generate high photovoltages.

Analysis, Carbon dioxide, Photochemistry

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