(709e) Tuning the Physical and Chemical Properties of Novel CO2 Capture Solvents Based On Hybrid Nanomaterials

Nanoparticle Organic Hybrid Materials (NOHMs) represent a novel class of liquid-like materials, whose potential applications include CO₂ capture. Their negligible vapor pressure and high thermal stability have indeed prompted the research community to investigate these nanomaterials as alternative carbon capture media to the common amine-based solvents. NOHMs are synthesized by grafting a nanosized inorganic core with a polymeric canopy. Prior studies have shed light on the mechanisms of CO₂ capture in NOHMs as well as their capture capacity and selectivity. In this study, the investigation of CO₂ capture using NOHMs is continued to investigate the effects of NOHMs’ chemistry (e.g., effect of amines functionalities) and structure (e.g., effect of core size) on tuning the kinetic (e.g., CO₂ diffusion), thermodynamic (e.g., heat capacity), absorptive (e.g., selectivity compared to H₂O and SO₂) and physical (e.g., thermal stability) properties of NOHMs in terms of CO₂ capture. A range of analytical techniques are employed including various spectroscopical techniques (i.e., ATR FT-IR, NMR, Raman), thermogravimetry and rheometry.