First-principles study of carbon capture and storage properties of porous MnO2 octahedral molecular sieve OMS-5
- Boise State Univ., ID (United States); Univ of Connecticut
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
- Illinois Inst. of Technology, Chicago, IL (United States)
- North Central College, Naperville, IL (United States)
- North Central College, Naperville, IL (United States); Univ. of Connecticut, Storrs, CT (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Boise State Univ., ID (United States); Center for Advanced Energy Studies, Idaho Falls, ID (United States)
Based on the experimentally determined framework structure of porous MnO2 octahedral molecular sieve (OMS)-5, we used density functional theory-based calculations to evaluate the effect of Na+ cation on pore dimensionality and structural stability, and the interaction between CO2 and OMS-5. Furthermore, we quantified the formation energy of one CO2/unit tunnel and two CO2/unit tunnel, and projected the electronic density of states on the OMS-5 framework, CO2 molecules, and Na+ cations to reveal their individual contributions and bonding nature. Partial charge densities were also calculated to investigate CO2 adsorption behavior in the OMS-5. Our studies predict the initial stage and driving force for the adsorption of CO2 in the OMS-5, guiding the OMS material design for carbon capture and storage applications.
- Research Organization:
- Univ. of Connecticut, Storrs, CT (United States); Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division; USDOE Office of Nuclear Energy (NE)
- Grant/Contract Number:
- FG02-86ER13622; AC07-05ID14517
- OSTI ID:
- 1598175
- Journal Information:
- Powder Diffraction, Journal Name: Powder Diffraction Journal Issue: 1 Vol. 34; ISSN 0885-7156
- Publisher:
- Cambridge University PressCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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