一种增强型聚苯并咪唑离子溶剂化复合膜及其制备和应用
By preparing an enhanced polybenzimidazole ion-solventized composite membrane, the problem of low OH- conductivity in traditional alkaline water electrolysis for hydrogen production was solved, achieving a highly efficient water electrolysis hydrogen production effect, reducing energy consumption and improving conductivity and current density.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZHEJIANG UNIV OF TECH
- Filing Date
- 2024-12-01
- Publication Date
- 2026-07-17
AI Technical Summary
In existing alkaline water electrolysis hydrogen production technologies, traditional membranes have low OH- conductivity, resulting in low efficiency and high energy consumption in water electrolysis hydrogen production. It is necessary to develop exchange membranes with high OH- conductivity to improve the efficiency of water electrolysis hydrogen production and reduce energy consumption.
An enhanced polybenzimidazole ion-solventized composite membrane was prepared by polycondensation reaction of polyphosphoric acid, adding inorganic oxide nanoparticles, and combining with a mesh support material to prepare a composite membrane with high conductivity and low surface resistance.
It can operate stably in a high-concentration alkaline environment for a long time, with the membrane surface resistance reduced to 0.035Ω·cm2, the current density reaching more than 8000mA·cm-2, the conductivity reaching up to 884mS·cm-1, the cold start response speed fast, and the electrolytic cell ohmic resistance low.
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