The formation of a MgCO shell hampers CO capture efficiency in MgO. Our previous studies developed MgO/Mg(OH) composites to facilitate CO diffusion, improving capture efficiency. However, MgCO still formed along the interfaces. To tackle this issue, we engineered the MgO/Mg(OH) interfaces by incorporating Cl, SO, and PO additives. Novel MgO-HO-MgX (X = Cl, SO, and PO) composites were synthesized to explore the role of additives in preventing MgCO formation. MgO-Mg(OH)-MgCl nano-composites displayed enhanced CO adsorption and stability. This breakthrough paves the way for effective bio-inspired strategies in overcoming CO transport barriers in MgO-based adsorbents.
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| http://dx.doi.org/10.1039/d3ra04080a | DOI Listing |
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