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Foams stabilized by Aquivion TM PFSA: Application to interfacial catalysis for cascade reactions

Feng, Andong, Dedovets, Dmytro, Zhang, Shi, Sha, Jin, Schwiedernoch, Renate, Gao, Jie, Gu, Yunjiao and Pera Titus, Marc 2022. Foams stabilized by Aquivion TM PFSA: Application to interfacial catalysis for cascade reactions. Advanced Materials Interfaces , 2200380. 10.1002/admi.202200380

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Foams are attractive platforms for engineering gas–liquid–solid catalytic microreactors with enhanced triphasic contact. In this study, the foaming properties of surface‐active AquivionTM perfluorosulfonic acid resin (AquivionTM PFSA) are unraveled. Stable aqueous and non‐aqueous foams are prepared driven by hydrogen bond interactions between AquivionTM PFSA and protic solvents (e.g., benzyl alcohol, aniline, water). In light of these unique properties, a catalytic foam system for one‐pot cascade deacetalization–hydrogenation reactions is designed. As proof of concept, benzaldehyde dimethyl acetal is converted into benzyl alcohol with 84% overall yield at room temperature in a foam system in the presence of AquivionTM PFSA and Pd/SiO2 catalysts, whereas the yield is halved in a non‐foam system. The enhanced reaction efficiency is attributed to a marked increase in interfacial area of the foam system and preferential location of catalytic acid centers at the gas–liquid interface.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Additional Information: License information from Publisher: LICENSE 1: URL:
Publisher: Wiley
ISSN: 2196-7350
Date of First Compliant Deposit: 6 June 2022
Last Modified: 28 Jun 2022 10:10

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