1. Molecular Simulations of Adsorption and Diffusion in Crystalline Nanoporous Materials
- Author
-
Dubbeldam, D., Calero, S., Vlugt, T.J.H., Snurr, R.Q., Gitis, V., Rothenberg, G., Molecular Simulations (HIMS, FNWI), Materials Simulation & Modelling, Molecular Simulation & Modelling, and EIRES Systems for Sustainable Heat
- Subjects
Adsorption ,Materials science ,Chemical engineering ,Nanoporous ,Diffusion (business) - Abstract
The following sections are included:IntroductionBenefits of computational experimentsNanoporous materialsPore system of a materialStructure modelsThe unit cellStructure file formatsWhere can you find zeolite and MOF structural information?Periodic boundary conditions and the minimum-image conventionForce fieldsRunning a simulationUnits and conversionsOutlineStructural PropertiesEnergy landscapesCharacterization of the pore system of a materialSurface areas, pore volume and pore-size distributionsMolecular Mechanics (MM)Monte Carlo (MC) and AdsorptionBasicsNVT ensembleAdsorption: Gibbs and grand-canonical ensembleEnthalpy of adsorptionMixture adsorption simulationsIdeal Adsorbed Solution Theory (IAST)Molecular Dynamics (MD) and DiffusionNewton’s equations of motionThermo- and barostatsRadial distribution functionsDynamic correlation functionsMean-squared displacement and single component diffusionActivation energyFree energy analysis and dc-TSTSelectivityBreakthrough Simulation of Fixed-bed Separation DevicesIntroductionModeling the fixed-bedConclusionAcknowledgementsReferencesAppendix: RASPA Input for Computing Adsorption and Diffusion PropertiesIntroductionForce field files for CO2 and CH4 in zeolitespseudo atoms.def atom definition fileCO2.def molecule filemethane.def molecule filenitrogen.def molecule fileITQ-29.cif framework definition fileforce field mixing rules.def force field definition fileBlocked pocket definitionsStructural properties of ITQ-29Surface areaVoid-fractionPore-size distributionMinimization of CO2 in ITQ-29Gibbs single component adsorption of CO2 in ITQ-29 using CBMCCO2 single component adsorption using CBMCCH4 single component adsorption using CBMCMixture adsorption of CO2/CH4 in ITQ-29Mixture adsorption of CO2/CH4 in ITQ-29 using CBMCDynamical properties of CO2 and CH4 in ITQ-29MSD, VACF, and RDF of CH4 in ITQ-29 using MDFree energy profiles of CH4 in ITQ-29 at 300 K and 4 molecules per cavity
- Published
- 2021