Abstract
Results of density functional theory calculations on Aln− and Aln−1Pt−, n = 2–8, clusters are presented and analyzed. The analysis includes different structural forms of the clusters characterized in terms of binding energy, spin and symmetry, and a comparative evaluation of various properties of the two systems viewed as connected through a single-Pt substitutional doping and examined in terms of their respective most stable structures. The Aln−1Pt− clusters are then used as a paradigmatic (model) case of single-atom nanocatalysts, with Pt as the catalytic center and Aln−1 as its support, to implement a uniform descriptor for gauging the tuning effects of all the parameters (“knobs”) of a nanocatalyst that include the identity of the active center and the material and size of its support.
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Acknowledgements
The work at Argonne was supported by the Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences and Biosciences, U.S. Department of Energy under Contract No. DE-AC02-06CH11357 (J.J.) This research used in part the resources of the National Energy Research Scientific Computing Center (NERSC) supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231.
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Acioli, P.H., Jellinek, J. A computational study of Aln− and Aln−1Pt− clusters: the effects of doping and a uniform tuning gauge for single-atom nanocatalysts. Eur. Phys. J. D 76, 230 (2022). https://doi.org/10.1140/epjd/s10053-022-00556-7
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DOI: https://doi.org/10.1140/epjd/s10053-022-00556-7