skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Heats of Adsorption of N2, CO, Ar, and CH4 versus Coverage on the Zr-Based MOF NU-1000: Measurements and DFT Calculations

Journal Article · · Journal of Physical Chemistry. C

Equilibrium adsorption isotherms at very low coverage (0 to ~0.1 monolayer) have been measured for four simple gases, N2, CO, Ar, and CH4, at several temperatures above 98 K on the metal-organic framework (MOF) NU-1000 (which has Zr63-OH)43-O)4(OH)4(OH2)4 nodes linked by pyrenes with -COO- end groups). From these, the differential isosteric heats of adsorption (Qst) were determined versus coverage. These were compared to density functional calculations of the adsorption enthalpies on different sites, assuming that they are filled in a sequential order from the strongest to weakest binding. This comparison shows excellent quantitative agreement on the trends for the four gases, as well as reasonable agreement in the absolute magnitude of the adsorption energies. Here, this agreement indicates that the sites predicted by the density functional calculations to be populated at different coverages for the different gases are correct, thus further increasing our understanding of adsorption on this prototype MOF.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Energy Frontier Research Center for Inorganometallic Catalyst Design (ICDC); Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
FG02-96ER14630; SC0012702
OSTI ID:
1557262
Journal Information:
Journal of Physical Chemistry. C, Vol. 123, Issue 11; ISSN 1932-7447
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

References (23)

Energetics of van der Waals Adsorption on the Metal–Organic Framework NU-1000 with Zr 6 -oxo, Hydroxo, and Aqua Nodes journal December 2017
Vapor-Phase Metalation by Atomic Layer Deposition in a Metal–Organic Framework
  • Mondloch, Joseph E.; Bury, Wojciech; Fairen-Jimenez, David
  • Journal of the American Chemical Society, Vol. 135, Issue 28, p. 10294-10297 https://doi.org/10.1021/ja4050828
journal May 2013
Linker Installation: Engineering Pore Environment with Precisely Placed Functionalities in Zirconium MOFs journal July 2016
Sintering-Resistant Single-Site Nickel Catalyst Supported by Metal–Organic Framework journal February 2016
Fine-Tuning the Activity of Metal–Organic Framework-Supported Cobalt Catalysts for the Oxidative Dehydrogenation of Propane journal October 2017
Metal–Organic Framework Supported Cobalt Catalysts for the Oxidative Dehydrogenation of Propane at Low Temperature journal November 2016
Methane Oxidation to Methanol Catalyzed by Cu-Oxo Clusters Stabilized in NU-1000 Metal–Organic Framework journal July 2017
Metal–Organic Framework Nodes as Nearly Ideal Supports for Molecular Catalysts: NU-1000- and UiO-66-Supported Iridium Complexes journal June 2015
An Exceptionally Stable Metal–Organic Framework Supported Molybdenum(VI) Oxide Catalyst for Cyclohexene Epoxidation journal October 2016
Computational Design of Functionalized Metal–Organic Framework Nodes for Catalysis journal December 2017
Calcium Vapor Adsorption on the Metal–Organic Framework NU-1000: Structure and Energetics journal July 2016
Evaluation of Brønsted acidity and proton topology in Zr- and Hf-based metal–organic frameworks using potentiometric acid–base titration journal January 2016
A new local density functional for main-group thermochemistry, transition metal bonding, thermochemical kinetics, and noncovalent interactions journal November 2006
Self—Consistent Molecular Orbital Methods. XII. Further Extensions of Gaussian—Type Basis Sets for Use in Molecular Orbital Studies of Organic Molecules journal March 1972
Self‐consistent molecular orbital methods 25. Supplementary functions for Gaussian basis sets journal April 1984
The calculation of small molecular interactions by the differences of separate total energies. Some procedures with reduced errors journal October 1970
Sublimation Pressure Data for Organic Compounds. journal April 1960
Applications and validations of the Minnesota density functionals journal January 2011
Regioselective Atomic Layer Deposition in Metal–Organic Frameworks Directed by Dispersion Interactions journal October 2016
Adsorption on Fe-MOF-74 for C1–C3 Hydrocarbon Separation journal June 2013
Critical Factors Driving the High Volumetric Uptake of Methane in Cu 3 (btc) 2 journal August 2015
Ab Initio Prediction of Adsorption Isotherms for Small Molecules in Metal–Organic Frameworks: The Effect of Lateral Interactions for Methane/CPO-27-Mg journal September 2012
Design of a Metal–Organic Framework with Enhanced Back Bonding for Separation of N 2 and CH 4 journal December 2013

Cited By (1)


Similar Records

Isomer of linker for NU-1000 yields a new she-type, catalytic, and hierarchically porous, Zr-based metal–organic framework
Journal Article · Mon Feb 22 00:00:00 EST 2021 · ChemComm · OSTI ID:1557262

Combined quantum mechanical and molecular mechanical method for metal–organic frameworks: proton topologies of NU-1000
Journal Article · Mon Jan 01 00:00:00 EST 2018 · Physical Chemistry Chemical Physics. PCCP (Print) · OSTI ID:1557262

Structural reversibility of Cu doped NU-1000 MOFs under hydrogenation conditions
Journal Article · Mon Feb 24 00:00:00 EST 2020 · Journal of Chemical Physics · OSTI ID:1557262