【摘要】 建立了一维轴对称交直流电解NO的数学模型,并基于Butler-Volmer动力学方程估计了NO电化学反应动力学参数,研究了K/Pt/Al₂O₃吸附层厚度、NiO/YSZ电极孔隙率等结构参数对于NO交直流电解反应特性的影响规律,计算结果表明:直流电解NO的转化率和电流效率随着吸附层厚度的增加和NiO/YSZ电极孔隙率的增加而降低,低O₂体积分数的条件下变化较为明显;低的吸附层厚度和高的NiO/YSZ电极孔隙率有利于获得较高的交流电解NO转化特性.更多还原

【Abstract】 A one-dimensional model for NO alternative current（AC）and direct current（DC）electrolysis was developed.The NO electrochemical reaction kinetics parameters were estimated based on Butler-Volmer.This paper studied the effects of microstructure parameters such as thickness of K/Pt/Al₂O₃ adsorption layer and porosity of NiO/YSZ electrode on NO electrochemical performance.Results show that NO conversion and current efficiency decrease with the increase of thickness of K/Pt/Al₂O₃ adsorption layer and porosity of NiO/YSZ electrode in DC electrolysis.And variations become significant at low O₂ concentrations.In AC electrolysis,NO conversion decreases with the increase of thickness of K/Pt/Al₂O₃ adsorption layer and the decrease of porosity of NiO/YSZ electrode.更多还原