Theoretical investigation of CO2 adsorption on graphene

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Abstract

The adsorption of carbon dioxide on graphene sheets was theoretically investigated using density functional theory (DFT) and MP2 calculations. Geometric parameters and adsorption energies were computed at various levels of theory. The CO2 chemisorption energies on graphene-C40 assuming high pressure are predicted to be 71.2-72.1 kcal/mol for the lactone systems depending on various C-O orientations at the UCAM-B3LYP level of theory. Physisorption energies of CO2 on graphene were predicted to be 2.1 and 3.3 kcal/mol, respectively, at the single-point UMP2/6-31G level of theory for perpendicular and parallel orientations.

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Lee, K. J., & Kim, S. J. (2013). Theoretical investigation of CO2 adsorption on graphene. Bulletin of the Korean Chemical Society, 34(10), 3022–3026. https://doi.org/10.5012/bkcs.2013.34.10.3022

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