Pacific Northwest National Laboratory (PNNL) is conducting research to mitigate common mechanisms of solvent degradation and byproduct formation in carbon dioxide (CO2) capture processes. Research and development (R&D) efforts focus on studying the effects of steel interfaces on oxidation and nitrosation for both aqueous and water-lean solvents and studying the molecular underpinnings of solvent degradation (e.g., hydrolysis, nitration, oxidation) and design new formulations that are resistant to these chemical degradations.