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

Petit, C., Imperial College London
Park, A. H. A., Columbia University

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.