Design and synthesis of sprayable nanocomposite coatings for carbon capture and direct conversion into environmentally safe stable carbonates

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Abstract We report design and synthesis of novel polymer-based nanocomposite for carbon capture and direct conversion into carbonate using a simple drop-casting method that allows uniform mixing of multiple oxide nanoparticles in a polymer matrix. Different functional properties including reactions with carbon dioxide (CO 2 ) and entrapping, and catalytic actions of the individual oxide nanoparticles were combined for their synergistic functions to occur in a single material system that resulted in enhanced reactions with CO 2 and direct conversion of CO 2 into thermodynamically favored and stable carbonates. These nanocomposites can be conveniently sprayed to coat surfaces for large-area CO 2 capture and storage.