1. Microstructure and mechanical performance of AISI D2 tool steel after standard and modified deep cryogenic treatmentVenu Yarasu, Bojan Podgornik, Barbara Šetina, Marko Sedlaček, Črtomir Donik, Francisco Ruiz-Zepeda, 2025, izvirni znanstveni članek Ključne besede: steel, isothermal heat treatments, cyclic response, martensite, fracture toughness
Objavljeno v DiRROS: 23.05.2025; Ogledov: 30; Prenosov: 10
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2. Improving the HER activity and stability of Pt nanoparticles by titanium oxynitride supportMilutin Smiljanić, Stefan R. Panić, Marjan Bele, Francisco Ruiz-Zepeda, Luka Pavko, Lea Gašparič, Anton Kokalj, Miran Gaberšček, Nejc Hodnik, 2022, izvirni znanstveni članek Objavljeno v DiRROS: 30.04.2025; Ogledov: 204; Prenosov: 69
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6. Adjusting the operational potential window as a tool for prolonging the durability of carbon-supported Pt-alloy nanoparticles as oxygen reduction reaction electrocatalystsTina Đukić, Leonard Moriau, Iva Klofutar, Martin Šala, Luka Pavko, Francisco Javier Gonzalez Lopez, Francisco Ruiz-Zepeda, Andraž Pavlišič, Miha Hotko, Matija Gatalo, Nejc Hodnik, 2024, izvirni znanstveni članek Objavljeno v DiRROS: 05.08.2024; Ogledov: 717; Prenosov: 355
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8. Metal–support interaction between titanium oxynitride and Pt nanoparticles enables efficient low-Pt-loaded high-performance electrodes at relevant oxygen reduction reaction current densitiesArmin Hrnjić, Ana Rebeka Kamšek, Lazar Bijelić, Anja Logar, Nik Maselj, Milutin Smiljanić, Jan Trputec, Natan Vovk, Luka Pavko, Francisco Ruiz-Zepeda, Marjan Bele, Primož Jovanovič, Nejc Hodnik, 2024, izvirni znanstveni članek Objavljeno v DiRROS: 04.03.2024; Ogledov: 719; Prenosov: 436
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9. Entering voltage hysteresis in phase-separating materials : revealing the electrochemical signature of the intraparticle phase-separated stateTomaž Katrašnik, Jože Moškon, Klemen Zelič, Igor Mele, Francisco Ruiz-Zepeda, Miran Gaberšček, 2023, izvirni znanstveni članek Povzetek: Hysteresis is a general phenomenon regularly observed in various materials. Usually, hysteretic behavior is an intrinsic property that cannot be circumvented in the non-equilibrium operation of the system. Herein, we show that, at least with regard to the hysteretic behavior of phase-separating battery materials, it is possible to enter (deeply) the hysteretic loop at finite battery currents. This newly observed electric response of the electrode, which is inherent to phase-separating materials, is, for the first time, related to its microscopic origin arising from a (significant) share of the active material residing in an intraparticle phase-separated state. This intriguing observation was further generalized by revealing that a phase-separating material can feature (significantly) different chemical potentials at the same bulk lithiation level and temperature when exposed to the same finite current and external voltage hysteresis. Therefore, the intraparticle phase-separated state significantly affected the DC and AC characteristics of the battery. The experimental evidence for entering the intraparticle phase-separated state is supported by thermodynamic reasoning and advanced modeling. The current findings will help advance the understanding, control, diagnostics, and monitoring of batteries composed of phase-separating materials while also providing pertinent motivation for the enhancement of battery design and performance.
Ključne besede: battery, phase-separating materials, Lithium iron phosphate, voltage hysteresis, intraparticle phase-separated
Objavljeno v DiRROS: 06.09.2023; Ogledov: 973; Prenosov: 521
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10. Periodic anti-phase boundaries and crystal superstructures in ▫$PtCu_3$▫ nanoparticles as fuel cell electrocatalystsAna Rebeka Kamšek, Anton Meden, Iztok Arčon, Primož Jovanovič, Martin Šala, Francisco Ruiz-Zepeda, Goran Dražić, Miran Gaberšček, Marjan Bele, Nejc Hodnik, 2023, izvirni znanstveni članek Objavljeno v DiRROS: 28.08.2023; Ogledov: 1126; Prenosov: 568
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