材料工程2024，Vol.52Issue(8)：150-158,9.DOI:10.11868/j.issn.1001-4381.2023.000580
金属有机框架/离子液体增强的质子交换膜的制备及性能
Preparation and properties of proton exchange membrane reinforced by metal-organic framework/ionic liquid
摘要
Abstract
To improve the proton conductivity of the sulfonated polyether ether ketone/ionic liquid (SPEEK/IL) membrane and reduce the loss rate of IL in the membrane,Cd@Co-MOF-74/Phosphate-4-phenylimidazole ionic liquid ([IM2][H2PO4])/SPEEK ternary composite membranes were prepared by the solution casting method. Results show that due to the formation of hydrogen bonds between the imidazole ring in ionic liquids and the—OH or carboxylic acid groups in MOF,imidazole molecules are anchored on the pore walls of MOF. The proton conductivity of the ternary composite membrane at 120 ℃ is the highest,reaching 26.93 mS·cm-1,when the mass fraction of the Cd@Co-MOF-74 doping is 1.5％. The IL loss rate of bimetallic MOF/IL/SPEEK ternary composite membranes with different contents is generally between 20％ and 25％. Doping bimetallic MOFs in SPEEK/IL membranes ensures high proton conductivity while reducing the swelling rate of SPEEK/IL composite membranes,thereby increasing their service life.关键词
磺化聚醚醚酮/离子液体/金属有机框架/质子交换膜/质子电导率Key words
SPEEK/ionic liquid/MOF/proton exchange membrane/proton conductivity分类
化学化工引用本文复制引用
孙丽君,吕雪燕,丁陆阳,屈树国..金属有机框架/离子液体增强的质子交换膜的制备及性能[J].材料工程,2024,52(8):150-158,9.基金项目
生物基水性聚酯功能材料设计与应用(2020KJC005) （2020KJC005）
山东省高等学校青创科技支持计划(2020KJC005) （2020KJC005）
