AUTHOR=Yao Jennifer , Dhas Jeffrey A. , Strange Lyndi E. , Bara Jason E. , Ravula Sudhir , Walter Eric D. , Chen Ying , Heldebrant David J. , Zhu Zihua TITLE=Investigating intermolecular interactions among CO2, water and PEEK-ionene membrane using cryo ToF-SIMS and isotopic labeling JOURNAL=Frontiers in Chemistry VOLUME=13 YEAR=2025 URL=https://www.frontiersin.org/journals/chemistry/articles/10.3389/fchem.2025.1564084 DOI=10.3389/fchem.2025.1564084 ISSN=2296-2646