V.D. Belyaev

Non-Faradaic catalysis: the case of CO oxidation over Ag-Pd alloy electrode in a solid oxide electrolyte cell

Studies of carbon monoxide oxidation on an Ag-25 at% Pd alloy electrode in a cell with a solid oxygen-conducting electrolyte - CO+O2, Ag-Pd | 0.9 ZrO2+0.1Y2O3 | Pt+PrO2-x, air - were carried out. XRD, SEM and XPS techniques were used for characterisation of the Ag-Pd alloy electrode. The non-Faradaic effect of electrochemical oxygen pumping on the rate of carbon monoxide oxidation was demonstrated. The induced change in the reaction rate at cathodic polarization of the Ag-Pd alloy electrode was an order of magnitude higher than the rate of oxygen pumping from the reaction zone through the electrolyte. The observed phenomenon was qualitatively explained on the base of a chain reaction mechanism involving electrochemically generated oxygen species.

Conversion of methane to synthesis gas over Pt electrode in a cell with solid oxide electrolyte

Electrochemical conversion of methane has been studied over a Pt electrode in a solid oxygen conducting electrolyte cell at 800°C. It was found that the Pt electrode is an active electrode-catalyst in the partial oxidation of methane to syngas. Carbon mon-oxide selectivity and yield of 85 and 65% respectively were reached. Potentialities of the electrochemical route for production of syngas from methane against the conventional catalytic way are briefly discussed.

On the origin of the non-faradaic electrochemical modification of catalytic activity (NEMCA) phenomena. Oxygen isotope exchange on Pt electrode in cell with solid oxide electrolyte

Homomolecular oxygen exchange on Pt electrode in a zirconia electrochemical cell was studied. It was found that the current passing through the cell (O2− pumping through the electrolyte) does not change the rate of oxygen exchange on the Pt electrode with respect to its open circuit value, a fact that indicates that the strength of the chemisorptive bond of oxygen on the Pt electrode is invariant under open and closed circuit conditions.

N2O reduction by CO over Pt electrode in a solid oxide electrolyte cell

AbstractThe reduction of nitrous oxide by carbon monoxide in a cell with a solid oxygen-conducting electrolyte

Effect of anodic current on carbon dioxide reforming of methane on Pt electrode in a cell with solid oxide electrolyte

- {\text{CO}} + {\text{N}}_{\text{2}} {\text{O,}}\;{\text{Pt}}\,{\text{|}}\,{\text{0}}{\text{.9ZrO2}} + {\text{0}}{\text{.1Y}}_{\text{2}} {\text{O}}_{\text{3}} \,{\text{|}}\,{\text{Pt}} + {\text{PrO}}_{\text{2}}

Oxidative conversion of CH4 on Ni and Ag electrode-catalysts in molten carbonate fuel cell reactor

, air – was studied. Experiments were performed in the temperature range 410–

The effect of electrochemical pumping of oxygen on catalytic behaviour of metal electrodes in methane oxidation

410 - 670^\circ {\text{C}}