Cited by 35Advanced Chemical Physics StudiesZeolite Catalysis and SynthesisAdvanced Physical and Chemical Molecular Interactions

Understanding Water–Zeolite Interactions: On the Accuracy of Density Functionals

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Stanciakova, Katarina, Louwen, Jaap N., Weckhuysen, Bert M., Bulo, Rosa E., Göltl, Florian·2021·The Journal of Physical Chemistry C

Abstract

Water is ubiquitous in zeolite catalysis, and electronic structure calculations play a crucial role in arriving at an atomistic understanding of water–zeolite interactions. However, a critical evaluation of the performance of different electronic structure methods in describing the interactions between water and zeolites is still missing. Here, we model the adsorption of one water molecule in all-silica chabazite (CHA) and of one and two water molecules in the acidic zeolite SSZ-13 using different electronic structure methods, which include 11 density functional theory (DFT)-based methods and two post Hartree–Fock (HF) methods, namely, the random phase approximation (RPA) and second-order Møller–Plesset (MP2) perturbation theory. We find that all DFT functionals lead to similar structures as long as water is strongly coordinated to the adsorption site, but adsorption energies vary in a range of 50 kJ/mol between the used methods. Subsequently, we use ab initio molecular dynamics calculations to show that all methods reproduce the experimentally observed hydrophobicity of purely siliceous zeolites. Comparing DFT energetics with RPA and MP2 calculations shows that PBE and revPBE-D3 adsorption energies show the best agreement with RPA, while BEEF–vdW agrees the best with MP2 results. At the same time, the performance of PBE functional without any dispersion correction is less consistent with respect to different adsorption sites (BAS, LAS, or the zeolite wall of all-silica CHA) and the BEEF–vdW functional fails to reproduce relative stabilities of the protonation sites. For the adsorption of two water molecules, most methods agree on the formation of a protonated water dimer, and only vdW-DF, vdW-DF2, and BEEF–vdW prefer the formation of a neutral complex. Based on these results, we suggest using the revPBE-D3 functional model water adsorption in purely siliceous or protonated zeolites since it can correctly capture covalent and dispersion interactions, is computationally efficient, correctly predicts the formation of a positively charged water dimer, and is able to closely reproduce adsorption energies calculated at the RPA or MP2 level of theory.

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Crossref · 10.1021/acs.jpcc.1c04270

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  • This strong stabilization is in qualitative agreement with static single water adsorption energies in CHA zeolite reported in the literature ranging from −50 to almost −100 kJ mol−1 depending on the DFT functional.

    “this strong stabilization is in qualitative agreement with the static single water adsorption energies in CHA zeolite reported in the literature ranging from −50 to almost −100 kJ mol−1 depending on the type of exchange-correlation DFT functional adopted61.”

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Authors
Stanciakova, K., Louwen, J. N., Weckhuysen, B. M., Bulo, R. E., & Göltl, F.
Affiliations
  • Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
  • Albemarle (Netherlands) (NL)
  • Utrecht University (NL)
  • University of Arizona (US)
Corresponding author
Göltl, Florian
Venue
The Journal of Physical Chemistry C
Published
2021-09-08
Volume
125
Issue
37
Pages
20261-20274
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W3198191575
Cited by
35
References
68
Citations by year
2026: 6 · 2025: 10 · 2024: 7 · 2023: 7 · 2022: 5
FWCI
2.07
Type
journal article
Language
en
Open access
Locations
  • The Journal of Physical Chemistry C (publishedVersion)
  • Utrecht University Repository (Utrecht University) (submittedVersion, other-oa)
  • Utrecht University Repository (Utrecht University) (submittedVersion)
Funders
  • Ministerie van Onderwijs, Cultuur en Wetenschap
  • Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Chemical Physics Studies
  • Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
  • Physical Sciences › Chemistry › Physical and Theoretical Chemistry › Advanced Physical and Chemical Molecular Interactions
Keywords
water adsorption, chabazite, SSZ-13, density functional accuracy, dispersion correction, random phase approximation, MP2, adsorption energy, zeolite hydrophobicity, protonation sites, all-silica zeolites

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