20.500.12556/DiRROS-23842 Grain-resolved mapping of oxygen evolution activation on a Ni-superalloy We report the first grain-resolved mapping of oxygen evolution reaction (OER) activation on a Ni-based superalloy using identicallocation EBSD, complemented by IL-SEM, IL-EDS, and SECCM. NiFe (oxy)hydroxide film formation and OER activity are strongly influenced by grain size and orientation, with (111)-oriented and smaller grains showing the highest activity. These findings reveal pronounced microstructure heterogeneity and establish IL-EBSD as a powerful tool for guiding the design of advanced electrocatalysts. Ni-superalloy IL-SEM IL-EDS SECCM true false true Royal Society of Chemistry Združeno kraljestvo Velike Britanije in Irske Angleški jezik Ni določen © The Royal Society of Chemistry 2025 Neznano 2025-10-10 11:55:28 2025-10-10 11:55:28 2025-10-24 03:55:09 0000-00-00 00:00:00 2025 0 0 Nasl. z nasl. zaslona; Opis vira z dne 10. 10. 2025; str. 13975-14208 iss. 74 Vol. 61 21 Sep. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 2025-09-21 54 1364-548X 10.1039/D5CC02703A 245668099 RAZ_Donik_Crtomir_2025.pdf RAZ_Donik_Crtomir_2025.pdf 1 11B828328A679196F4F73F2589A273A9 5cf4ed487e491d39d248815221efe6524276c763f54d57afe7d6c74f534c543e db6d3c6b-a5c0-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35355 https://pubs.rsc.org/en/content/articlelanding/2025/cc/d5cc02703a 1 41e3181e-a5bf-11f0-9bb7-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=35354 Inštitut za kovinske materiale in tehnologije 0 0 0