江苏大学学报（自然科学版）2025，Vol.46Issue(3)：293-300,8.DOI:10.3969/j.issn.1671-7775.2025.03.006
质子交换膜电解池阴极催化层的孔隙网络模拟
Pore network modelling on cathode catalyst layer of proton exchange membrane water electrolyzer
摘要
Abstract
To explore the phenomenon of water and gas transport and electron conduction in the cathode catalyst layer(CCL),the pore network model of CCL for the proton exchange membrane water electrolyzer was established,and the change rules of the accurate transport parameters of permeability and diffusivity and the electrochemical parameters of electronic conductivity and electrochemical activity specific surface area with the microstructure of catalyst layer were investigated.The results show that with the dcreasing of water saturation,the gas relative diffusivity and relative permeability in different directions in CCL are gradually increased,while when the water saturation is 0-0.61,the better water/gas transport characteristics are achieved.The conductivity of catalytic layer is nonlinearly increased with the increasing of platinum particle radius.When the platinum particle radius is increased from 5 nm to 20 nm,the electron conductivity is increased by 55.7％.The conductivity is decreased with the increasing of pore diameter,while the change is small.The electrochemical specific surface area of CCL is nonlinearly decreased with the increasing of platinum particle radius or pore diameter,and the decreasing is comparable.关键词
质子交换膜电解池/阴极催化层/孔隙网络模型/传输特性/电子传导Key words
proton exchange membrane water electrolyzer/cathode catalyst layer/pore network model/transport characteristics/electron transfer分类
能源科技引用本文复制引用
罗马吉,秦超超,陈黎,陈奔..质子交换膜电解池阴极催化层的孔隙网络模拟[J].江苏大学学报（自然科学版）,2025,46(3):293-300,8.基金项目
国家自然科学基金资助项目(52176200) （52176200）
