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An Adsorption Study of CH4 on ZSM-5, MOR, and ZSM-12 Zeolites

Journal Article · · Journal of Physical Chemistry. C
 [1];  [2];  [2];  [2];  [3];  [3]
  1. Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Chemical and Biomolecular Engineering; Southeast Univ., Nanjing (China). School of Chemistry and Chemical Engineering
  2. Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Chemical and Biomolecular Engineering
  3. Univ. of Wisconsin, Madison, WI (United States). Dept. of Chemical and Biological Engineering
CH4 adsorption was studied experimentally and theoretically on ZSM-5, MOR, and ZSM-12 zeolites using calorimetric measurements at 195 K and plane wave DFT calculations. Differential heats measured on four different H-ZSM-5 samples were determined to be 22.5 ± 1 kJ/mol, independent of Brønsted site density or defect concentration. However, DFT calculations performed using various functionals and on the most stable Brønsted site indicated that CH4 should bind to this site by an additional 1–7 kJ/mol, a discrepancy that is due to the inability of standard DFT methods to capture hydrogen-bonding effects accurately with CH4. Differential heats for CH4 in MOR were 30±1 kJ/mol at low coverages, falling to 25 kJ/mol for coverages above one molecule per 8-membered-ring side pocket, while differential heats on ZSM-12 were initially 22.5 kJ/mol, decreasing to 21 kJ/mol with coverage. DFT calculations on the siliceous form of the zeolites were able to predict these values within 5 kJ/mol in most cases. The results indicate that CH4 is an excellent probe molecule for characterizing the pore structure of zeolites.
Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Catalysis Center for Energy Innovation (CCEI)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0001004
OSTI ID:
1387606
Journal Information:
Journal of Physical Chemistry. C, Journal Name: Journal of Physical Chemistry. C Journal Issue: 52 Vol. 119; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Selective Carbonylation of Dimethyl Ether to Methyl Acetate Catalyzed by Acidic Zeolites journal February 2006
Density Functional Theory and Hydrogen Bonds: Are We There Yet? journal February 2015
Semiempirical GGA-type density functional constructed with a long-range dispersion correction journal January 2006
The adsorption of methane on H-ZSM-5 zeolite journal December 1984
Synthesis and characterization of defect-free crystals of MFI-type zeolites journal January 1992
Heats of adsorption for ammonia and pyridine in H-ZSM-5: evidence for identical Brønsted-acid sites journal March 1994
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Design parameters for the construction and operation of heat-flow calorimeters journal March 1998
Alkane sorption in molecular sieves: The contribution of ordering, intermolecular interactions, and sorption on Brønsted acid sites journal January 1997
A calorimetric investigation of CO, N2, and O2 in alkali-exchanged MFI journal May 2000
Periodic, vdW-corrected density functional theory investigation of the effect of Al siting in H-ZSM-5 on chemisorption properties and site-specific acidity journal July 2014
Embedded cluster (QM/MM) investigation of C6 diene cyclization in HZSM-5 journal March 2005
Observation of a compensation relation for n-hexane adsorption in zeolites with different structures: implications for catalytic activity journal July 2005
The role of spatial constraints and entropy in the adsorption and transformation of hydrocarbons catalyzed by zeolites journal September 2015
Accurate Adsorption Thermodynamics of Small Alkanes in Zeolites. Ab initio Theory and Experiment for H-Chabazite journal March 2015
Predicting Methane Storage in Open-Metal-Site Metal–Organic Frameworks journal June 2015
Review and Analysis of Molecular Simulations of Methane, Hydrogen, and Acetylene Storage in Metal–Organic Frameworks journal September 2011
Performance of Several Density Functional Theory Methods on Describing Hydrogen-Bond Interactions journal December 2008
Characterization of acidity in H-ZSM-5, H-ZSM-12, H-Mordenite, and H-Y using microcalorimetry journal August 1993
Acidity Differences between Inorganic Solids Induced by Their Framework Structure. A Combined Quantum Mechanics/Molecular Mechanics ab Initio Study on Zeolites journal February 1998
On the Accuracy of DFT for Describing Hydrogen Bonds:  Dependence on the Bond Directionality journal July 2004
Adsorption and Vibrational Spectroscopy of CO on Mordenite:  Ab initio Density-Functional Study journal April 2005
Adsorption of C2−C8 n -Alkanes in Zeolites journal September 2010
Theoretical Study of Host−Guest Interactions in the Large and Small Cavities of MOR Zeolite Models journal March 2011
β-Scission of Olefins on Acidic Zeolites: A Periodic PBE-D Study in H-ZSM-5 journal October 2013
Calorimetric Study of Alcohol and Nitrile Adsorption Complexes in H-ZSM-5 journal May 1997
Calorimetric Study of Adsorption of Alkanes in High-Silica Zeolites journal August 1998
Calorimetric Investigation of CO and N 2 for Characterization of Acidity in Zeolite H−MFI journal May 1999
Calorimetric Heats of Adsorption and Adsorption Isotherms. 1. O 2 , N 2 , Ar, CO 2 , CH 4 , C 2 H 6 , and SF 6 on Silicalite journal January 1996
What do we know about the acidity of solid acids? journal January 1999
The materials genome in action: identifying the performance limits for methane storage journal January 2015
A thermodynamic tank model for studying the effect of higher hydrocarbons on natural gas storage in metal–organic frameworks journal January 2015
Performance of conventional and dispersion-corrected density-functional theory methods for hydrogen bonding interaction energies journal January 2013
A consistent and accurate ab initio parametrization of density functional dispersion correction (DFT-D) for the 94 elements H-Pu journal April 2010
Van der Waals interactions between hydrocarbon molecules and zeolites: Periodic calculations at different levels of theory, from density functional theory to the random phase approximation and Møller-Plesset perturbation theory journal September 2012
Quantum chemical ab initio prediction of proton exchange barriers between CH 4 and different H-zeolites journal September 2015
Evaluated Gas Phase Basicities and Proton Affinities of Molecules: An Update journal May 1998
Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation journal September 1992
Erratum: Atoms, molecules, solids, and surfaces: Applications of the generalized gradient approximation for exchange and correlation journal August 1993
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
From ultrasoft pseudopotentials to the projector augmented-wave method journal January 1999
Improved adsorption energetics within density-functional theory using revised Perdew-Burke-Ernzerhof functionals journal March 1999
Density functionals for surface science: Exchange-correlation model development with Bayesian error estimation journal June 2012
Restoring the Density-Gradient Expansion for Exchange in Solids and Surfaces journal April 2008
Generalized Gradient Approximation Made Simple journal October 1996
VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data journal October 2011

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Molecular Study of Phenyl Formation on ZSM-5: Comparison between Surface and Gas Phase Reactions journal March 2018