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        <datestamp>2026-09-11</datestamp>
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          <dc:title xml:lang="en">Data and code supporting the paper "Competing adsorption of H and CO on Pd-alloy surfaces: Mechanistic insight into the mitigating effect of Cu on CO poisoning"</dc:title>
          <dc:creator>https://orcid.org/0000-0002-9427-4816</dc:creator>
          <dc:creator>https://orcid.org/0000-0002-2516-6061</dc:creator>
          <dc:subject xml:lang="en">Physical Sciences</dc:subject>
          <dc:subject xml:lang="sv">Fysik</dc:subject>
          <dc:description xml:lang="en">This record contains machine-learned interatomic potential (MLIP) and cluster expansion (CE) models for the AuCuPd:CO,H system along with reference data from density functional theory (DFT) calculations. Technical details are provided in

Pernilla Ekborg-Tanner and Paul ErhartCompeting adsorption of H and CO on Pd-alloy surfaces: Mechanistic insight into the mitigating effect of Cu on CO poisoning Acta Materialia 316, 122507 (2026) doi: 10.1016/j.actamat.2026.122507

MLIP models

Models based on the neuroevolution potential (NEP) architecture are provided in the nep-*.txt files. The "full" model has been trained against all available data whereas the "split" models have been trained against a random selection of 90% structures from the available structures.

Models based on the MACE architecture are provided in the MACE-*.model files.

CE models

Models are provided for (111), (110), and (100) surfaces in the *.ce files along with reference structures in the *.xyz files

Reference data

Reference data from DFT calculations is provided in the reference-structures.db file, which is a sqlite database generated using the ase package.</dc:description>
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          <dc:publisher xml:lang="en">Chalmers University of Technology</dc:publisher>
          <dc:publisher xml:lang="sv">Chalmers tekniska högskola</dc:publisher>
          <dc:date>2026-02-28T00:00:00Z</dc:date>
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