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Graduate Student Seminar with Josie Rojo

Apr

2

Seminar
Neville 3
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Mapping out the Reactivity of a Superbase with Refrigerant

Hydrofluorocarbons are widely used as refrigerants but pose a serious environmental threat due
to their high global warming potential and extreme chemical stability. Conventional disposal
methods for these refrigerants involve energy-intensive incineration, where the fluorine
component is treated as toxic byproduct instead of a resource. This work presents a green
solution by utilizing an organic "superbase" to decompose hydrofluorocarbon and trap its
fluorine atoms in a stable and reusable form. Experimental results demonstrate that this reaction
successfully harvests fluoride from the refrigerant to produce a useful fluorine-containing
compound while converting the remaining carbon backbone into a polymeric material.
Moreover, the findings indicate that adding lithium-based additives has the potential to recycle
the superbase, providing a closed-loop system for chemical waste management. Overall, this
study demonstrates a strategy for converting harmful greenhouse gases into valuable materials,
highlighting new opportunities for sustainable fluorine chemistry, climate change mitigation and
environmental remediation.