Integrated Electrochemical Conversion of Plastic Waste and CO2 to Formate Using Non-Noble-Metal Catalysts: In Situ Raman Study

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In situ Raman analysis shows CO2 reduction and PET oxidation via non-noble metal catalysts, indicating a sustainable waste transformation.

Electrochemical methods achieved over 90% Faradaic efficiency in converting PET and CO2 into formate.
A combined Faradaic efficiency of up to 158% was recorded in a two-electrolyzer setup at 1.8 V.
Utilizing non-noble metal catalysts highlighted a practical approach to mitigate CO2 emissions from plastic waste.
In situ Raman study revealed active sites that regenerate during PET hydrolysate oxidation.

Kumar et al. (2025) studied this question.

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In situ Raman analysis shows CO2 reduction and PET oxidation via non-noble metal catalysts, indicating a sustainable waste transformation.