中国电机工程学报2024，Vol.44Issue(14)：5588-5595,中插12,9.DOI:10.13334/j.0258-8013.pcsee.230612
膜内掺Pt含量对质子交换膜电解水性能与氢渗透的影响
Effect of Pt Content in Membrane on Performance and Hydrogen Permeation of Proton Exchange Membrane Water Electrolysis
摘要
Abstract
Aiming at the potential safety hazards of hydrogen permeation by proton exchange membrane water electrolysis,nano Pt particles are doped into the membrane by ultrasonic spraying and then Pt doped composite membrane is obtained by hot pressing to alleviate the hydrogen permeation phenomenon.Under the condition of keeping the total Pt content of membrane electrode unchanged,the effects of different Pt content in membrane on the performance and hydrogen permeation of proton exchange membrane water electrolysis are studied.The results show that nano Pt particles are successfully loaded into the membrane by ultrasonic spraying and hot pressing,thus effectively alleviating hydrogen permeation.With the increase of Pt content in the membrane,the hydrogen permeation flux decreases,but the electrolytic performance also decreases because of the gradually increasing ohmic loss.Considering the hydrogen permeation and electrolysis performance,the optimal Pt content in this paper is 0.01 mg/cm2;at 0.1 A/cm2 the hydrogen in oxygen content is only 0.82% .Compared with the membrane without Pt,the hydrogen permeation is reduced by 50.32%,and the electrolysis voltage is only increased by about 20 mV.During long-term operation,the electrolytic voltage and the hydrogen concentration in the oxygen are relatively stable and the hydrogen concentration in oxygen is below the lower limit of the explosion.关键词
质子交换膜电解水/复合膜/膜内Pt含量/氢渗透/电解性能Key words
proton exchange membrane water electrolysis/composite membrane/Pt content in membrane/hydrogen permeation/electrolytic performance分类
能源科技引用本文复制引用
丁文杰,张亮,李俊,杨扬,黄健,付乾,朱恂,廖强..膜内掺Pt含量对质子交换膜电解水性能与氢渗透的影响[J].中国电机工程学报,2024,44(14):5588-5595,中插12,9.基金项目
国家重点研发计划项目(2021YFB4000102).National Key R&D Program of China(2021YFB4000102). （2021YFB4000102）
