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Surface Adsorption and Geometry Evaluator (SAGE): An Interactive Workflow Platform for Standardized Surface
JunHee Park1, Seonghwan Kim2, Daekeun Kim1
1Department of Environmental Engineering, Seoul National University of Science and Technology, Seoul01811, Republic of Korea.
Abstract:
Surface adsorption screening is widely used to prioritize catalytic materials, but practical screening often requires users to coordinate multiple software tools for structure preparation, slab construction, adsorption-site generation, geometry relaxation, and postprocessing. Here, we present the Surface Adsorption and Geometry Evaluator (SAGE), an interactive workflow application that standardizes these procedures within a single user-facing environment for reproducible surface adsorption screening. SAGE integrates structure import, slab preparation, geometry-based adsorption-site generation, machine-learning-assisted energy evaluation, postrelaxation interpretation, and export-ready result generation with traceable metadata. The application was demonstrated using representative metallic and oxide case studies. For seven fcc(111) metals, SAGE preserved the qualitative low-coverage ΔGH trend and binding-regime classification expected from the conventional hydrogen evolution reaction descriptor framework, demonstrating workflow-level consistency under the tested conditions. For oxide surfaces, SAGE provides a descriptor-oriented workflow that separately evaluates protonation- and adsorption-related surface descriptors under explicitly defined slab assumptions, as illustrated using a constrained Co3O4 example. Rather than introducing a new adsorption-energy model, SAGE provides a standardized and reproducible workflow for practical adsorption screening with traceable metadata and export-ready outputs, facilitating catalyst prioritization and reproducible adsorption studies across computational and experimental studies.

