Efficient and stable catalytic hydrolysis of perfluorocarbon enabled by SO₂-mediated proton supply.

ABSTRACT: Catalytic hydrolysis is an effective strategy for decomposing tetrafluoromethane (CF₄), one of the most chemically inert per- and polyfluoroalkyl substances (PFAS). A key challenge in this process lies in enhancing proton availability to facilitate efficient and stable C-F bond activation while ensuring long-term catalyst stability. Here we present an SO₂-driven approach to significantly enhance H₂O dissociation and proton-supplying through the in situ formation of Al-HSO₄ and Ga-HS species. Combined experimental and theoretical investigations reveal that these species not only lower the energy barrier for C-F bond activation but also promote active site regeneration by facilitating defluorination, thus effectively overcoming catalyst deactivatio

SUBMITTER: Zhang H 

PROVIDER: S-EPMC12808091 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature