Communication: Water on hexagonal boron nitride from diffusion Monte Carlo
Journal Article
·
· Journal of Chemical Physics
- Thomas Young Centre and London Centre for Nanotechnology (United Kingdom); Univ. College London (United Kingdom)
- Univ. of Basel (Switzerland); Argonne National Lab. (ANL), Lemont, IL (United States). Argonne Leadership Computing Facility (ALCF)
Despite a recent flurry of experimental and simulation studies, an accurate estimate of the interaction strength of water molecules with hexagonal boron nitride is lacking. Here, we report quantum Monte Carlo results for the adsorption of a water monomer on a periodic hexagonal boron nitride sheet, which yield a water monomer interaction energy of –84 ± 5 meV. We use the results to evaluate the performance of several widely used density functional theory (DFT) exchange correlation functionals and find that they all deviate substantially. We conclude differences in interaction energies between different adsorption sites are however better reproduced by DFT.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility(OLCF); Argonne National Laboratory (ANL), Argonne, IL (United States). Argonne Leadership Computing Facility (ALCF)
- Sponsoring Organization:
- USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR); European Research Council (ERC); Swiss National Science Foundation (SNF)
- Grant/Contract Number:
- AC02-06CH11357; 616121; PP00P2 138932; AC05-00OR22725
- OSTI ID:
- 1332976
- Alternate ID(s):
- OSTI ID: 1421152
- Journal Information:
- Journal of Chemical Physics, Vol. 142, Issue 18; ISSN 0021-9606
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 52 works
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