质子交换膜燃料电池梯度化膜电极的模型构建与设计
Modeling and Design of Gradient Membrane Electrode for Proton Exchange Membrane Fuel Cell
王厚朋 1程涛 1彭茜 1张家康 1顾贤睿 1龚雪卉 1杨雪 1林伟1
作者信息
- 1. 中石化石油化工科学研究院有限公司,北京 100083
- 折叠
摘要
通过实验和理论计算的方法定量研究膜电极内部传质等规律,并在此基础上提出梯度化膜电极的定量设计策略.建立了膜电极的极化曲线方程,基于试验与方程回归,得到了膜电极性能特征参数,此参数可以直观地反映出膜电极的电化学性能、内阻和传质性能,为膜电极的优化提供直观依据.构建膜电极的三维空间模型,并进行数值模拟计算,得到了氧气在膜电极内部的分布.基于实验数据和理论计算结果,提出梯度化膜电极的定量设计策略.
Abstract
The internal mass transfer laws of membrane electrode is quantitatively studied by the experiment and theoretical calculation method.On this basis,the quantitative design strategy is proposed for gradient membrane electrodes.Moreover,the polarization curve equation of membrane electrode is established,and then the performance characteristic parameters of membrane electrode are obtained based on the experiment and equation regression.These parameters can directly reflect the electrochemical performance,internal resistance and mass transfer performance of membrane electrode,and provide an intuitive basis for the optimization of membrane electrode.The three-dimensional space model of membrane electrode was constructed,and the numerical simulation calculation is performed to obtain the distribution of oxygen in the membrane electrode.Based on the experimental data and theoretical calculation results,the quantitative design strategy of gradient membrane electrode is proposed herein.
关键词
质子交换膜燃料电池/梯度化膜电极/铂催化剂/氧还原反应/交换电流密度/极限电流密度/内阻Key words
proton exchange membrane fuel cell/gradient membrane electrode/platinum catalyst/oxygen reduction reaction/exchange current density/limiting current density/internal resistance引用本文复制引用
基金项目
中国石油化工股份有限公司课题(121001)
出版年
2024
NETL
NSTL
万方数据