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화학적 안정성이 향상된 염수 전기분해 공정용 이중층 이온 교환막

Double layer ion exchange membrane for saline water electrolysis process with improved chemical stability

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  • URLhttps://db.koreascholar.com/Article/Detail/360912
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한국막학회 (The Membrane Society Of Korea)
초록

Saline water electrolysis is an electrochemical process to produce valued chemicals by applying electric power. Perfluorinated sulfonic acid (PFSA) ionomers have been used as polymer electrolyte membrane (PEM) materials owing to their high sodium ion selectivity and barrier properties. However, sulfonic acid groups in PFSA ionomers are chemically decomposed under a basic catholyte condition, which makes the PEM materials lose their ionic selectivity and Faraday efficiency. In this study, double layered membranes were prepared by anchoring cross-linked hydrocarbon ionomers, as a protection layer to catholyte atmosphere, into the water channels, particularly, located at around the surface of a PFSA membrane. Here, each monomer results in the identical chemical architecture and different free volume content when polymerized.

저자
  • 박인기(단국대학교 에너지공학과) | In Kee Park
  • 이창현(단국대학교 에너지공학과) | Chang Hyun Lee