【摘要】 以α-Zr(HPO4)H2O为质子固体电解质设计电解池,于常温常压实现了CO电催化加氢还原反应,反应产物与电极材料、电流密度密切相关.Cu/ZrP电极表面反应主要产物是甲醛,电流密度100 mA/cm2时,甲醛的Farad ic效率达到29.0%,Fe/ZrP电极表面反应主要产物是乙烯,电流密度100 mA/cm2-时,乙烯的Farad ic效率达到15.0%.更多还原

【Abstract】 A new electrolysis system was developed for the conversion of CO to formaldehyde and ethylene,in which the electrochemical reduction took place at the two-phase（gas/solid） interface on Cu,Fe and Brass（electrodes） with α-Zr(HPO₄)₂H₂O（ZrP） used as proton-conducting solid electrolyte at room temperature and atmospheric pressure.The products for eletroreduction of CO depended on the different metal electrodes and the current densities.Considerable faradic efficiency was observed for HCHO at Cu/ZrP cathode electrode over a wide range of current density.And the faradic efficiency of HCHO increased with the increase of the current density and approached 29.0% at a current density of 100 mA·cm^-2.The Cu/ZrP cathodic surface reaction mechanism was proposed,i.e.,oxygen-containing Cu…HCO was formed and the fine product HCHO was obtained.The faradic efficiency of C₂H₄ increased with the increase of the current density and approached 15.0% at a current density of 100 mA·cm^-2 on Fe/ZrP cathode electrode.The Fe/ZrP surface reaction mechanism was proposed,that was,radical coordinate Fe…H₂ was formed and the product C₂H₄ was（obtained）.更多还原