1. Insights into surface microstructural engineering of Inconel 625 for enhanced oxygen evolution reaction performanceLuka Suhadolnik, Črtomir Donik, Blaž Tomc, Mejrema Nuhanović, Martin Šala, Marjan Bele, Matjaž Finšgar, Andraž Mavrič, Iztok Arčon, Matjaž Godec, Nejc Hodnik, 2025, izvirni znanstveni članek Ključne besede: electrocatalysis, compositionally complex materials, commercial nickel alloys, oxygen evolution reaction, scanning electron microscopy, IL-SEM
Objavljeno v DiRROS: 29.10.2025; Ogledov: 208; Prenosov: 104
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2. A core–shell TiON–C nanostructure as a self supported and scalable electrode for fast oxygen evolution reaction in acidic mediaFederico Baiutti, Kosova Kreka, Aleš Marsel, Miha Hotko, Marjan Bele, Anja Logar, Martin Šala, Črtomir Donik, Lazar Bijelić, Carolina Duque Serra, Alex Morata, Albert Tarancón, Miran Gaberšček, Nejc Hodnik, 2025, izvirni znanstveni članek Ključne besede: PEMEC, fuel cells, hydrogen, titania, iridium, anode
Objavljeno v DiRROS: 29.10.2025; Ogledov: 208; Prenosov: 94
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3. Workflow and practical guidance for identical location scanning electron microscopy: reliable tracking of localized transformationsBlaž Tomc, Marjan Bele, Ana Rebeka Kamšek, Milena Martins, Aleš Marsel, Miha Hotko, Stefan Popović, Gregor Kapun, Črtomir Donik, Mitja Kostelec, Matjaž Godec, Nejc Hodnik, Luka Suhadolnik, 2025, izvirni znanstveni članek Povzetek: Understanding material transformations at the nano- and microscale is essential for advancing electrocatalysis, energy storage, and other applications. Conventional SEM imaging, which captures random locations before and after treatment, struggles to distinguish real transformations from inherent sample heterogeneity. Identical Location SEM (IL-SEM) overcomes this by enabling re-imaging of the exact same region, offering clear evidence of localized changes in morphology, structure, and composition. Despite its simplicity and wide applicability, IL-SEM remains underutilized. This article presents a detailed, practical guide to implementing IL-SEM reliably, including sample alignment, multiscale imaging, and consistent re-localization. Key methodological tips and solutions to common challenges are provided, making the approach accessible even for non-expert users. To showcase its versatility, we present case studies involving electrocatalysts, alloys, and nanostructured materials. Moreover, by integrating IL-SEM with energy-dispersive spectroscopy (EDS) and electron backscatter diffraction (EBSD), we demonstrate how compositional and crystallographic evolution can be tracked alongside morphological changes. This optimized workflow offers a powerful, non-destructive method for visualizing dynamic material behavior and provides a foundation for IL-SEM to become a standard technique for studying structural evolution across diverse materials research fields.
Ključne besede: electrocatalysis, identical location electron microscopy, IL-SEM, materials characterization, scanning electron microscopy, surface analysis
Objavljeno v DiRROS: 15.10.2025; Ogledov: 259; Prenosov: 131
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4. Grain-resolved mapping of oxygen evolution activation on a Ni-superalloyČrtomir Donik, Luka Suhadolnik, Blaž Tomc, Anton Voronkin, Jon Ustarroz, Marjan Bele, Matjaž Godec, Nejc Hodnik, 2025, izvirni znanstveni članek Povzetek: 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.
Ključne besede: Ni-superalloy, IL-SEM, IL-EDS, SECCM
Objavljeno v DiRROS: 10.10.2025; Ogledov: 226; Prenosov: 111
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6. Metal–support interaction between titanium oxynitride and Pd nanoparticles as a tool for tuning the selectivity of electrocatalytic hydrogenation of furfuralNik Maselj, Jan Trputec, Martin Šala, Kristina Mervič, Ivan Marić, Francisco Ruiz-Zepeda, Marjan Bele, Vasko Jovanovski, Nejc Hodnik, Primož Jovanovič, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 17.09.2025; Ogledov: 307; Prenosov: 153
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7. Engineering Ru@Ir core–shell nanoparticles on titanium oxynitride–graphene support for a highly active and durable pH-universal hydrogen evolution reactionAleksandra S. Popović, Ivan Marić, Marjan Bele, Ervin Rems, Matej Huš, Luka Pavko, Francisco Ruiz-Zepeda, Lazar Bijelić, Branimir Grgur, Nejc Hodnik, Milutin Smiljanić, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 22.08.2025; Ogledov: 406; Prenosov: 239
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8. Titanium oxynitride-supported Ru nanoparticles as exceptional electrocatalysts for alkaline hydrogen evolution reactionMilutin Smiljanić, Marjan Bele, Luka Pavko, Armin Hrnjić, Francisco Ruiz-Zepeda, Lazar Bijelić, Ana Rebeka Kamšek, Mejrema Nuhanović, Aleš Marsel, Lea Gašparič, Anton Kokalj, Nejc Hodnik, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 03.07.2025; Ogledov: 494; Prenosov: 260
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9. Plasma-assisted synthesis in aqueous solution to prepare Ir-based nanocatalysts for oxygen evolution reaction in acidic conditionsAlexey Treshchalov, Heiki Erikson, Milutin Smiljanić, Milena Šetka, Lazar Bijelić, Marjan Bele, Martin Šala, Siim Pikker, Peeter Ritslaid, Nejc Hodnik, Kaido Tammeveski, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 19.06.2025; Ogledov: 433; Prenosov: 242
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10. Iridium stabilizes ceramic titanium oxynitride support for oxygen evolution reactionGorazd Koderman Podboršek, Luka Suhadolnik, Anja Logar, Marjan Bele, Armin Hrnjić, Živa Marinko, Janez Kovač, Anton Kokalj, Lea Gašparič, Angelja Kjara Surca, Ana Rebeka Kamšek, Goran Dražić, Miran Gaberšček, Nejc Hodnik, Primož Jovanovič, 2022, izvirni znanstveni članek Objavljeno v DiRROS: 07.05.2025; Ogledov: 696; Prenosov: 302
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