In‐situ‐Reaktionsverfolgung mittels ATR‐IR‐Spektroskopie bei der CO2‐Hydrierung zu Ameisensäure

In the hydrogenation of carbon dioxide to formic acid, the analysis is a challenge due to the unfavorable position of equilibrium and the complex reaction medium. Low yields, despite the use of a Ru/γ‐Al₂O₃ catalyst, the formation of formic acid‐amine adducts, and subsequent reactions with the solvent complicate the analytics. The coupling of the reactor to the ATR‐IR spectroscopy allows precise in situ monitoring of the reaction. Another advantage is the easy accessibility of the initial kinetics. That way, a deviation from the Arrhenius behavior was found.