气体扩散电极中三相交界线的研究  

Research On Three-Phase Boundary of Gas Diffusion Electrode

作　　者：雷凡[1] 董博[1] 李清宇[1] 徐献芝[1] 

机构地区：[1]中国科学技术大学工程科学院,合肥安徽230027

出　　处：《数学的实践与认识》2012年第20期93-97,共5页Mathematics in Practice and Theory

基　　金：国家自然科学基金(10872193)

摘　　要：对气体扩散电极三相反应区域的基本单元简化得到了液滴电极模型,并建立了液滴电极的数学模型.对液滴电极数学模型求解,得出液滴电极在大电流输出工作条件下输出电流与三相反应交界线周长成正比,具体关系为I=K(θ_0)*L*C_e.其中I为电极电流强度,θ_0为接触角,C_e为气液接触面上氧气浓度,L为固液接触面周长.we try to simplify the Three-phase reaction area in gas diffusion electrode, then we get dropping electrode and build up it＇s mathematical model. Solving with it＇s mathematical model, we get the truth that dropping electrode＇s output current in proportion to the circumference of Three-phase boundary on condition that output current get to be the max, the specific comparison expression is I = K（θ0） ＊ L ＊ C∈. I means output current. θ0 means angle of wetting. C∈ means θ2 concentration of liquid：gas boundary .L means circumference of Three-phase boundary.

关 键 词：气体扩散电极 润湿角 三相交界线 

分 类 号：O646[理学—物理化学] O242.1[理学—化学]