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2. Improving lithium-sulfur battery performance using a polysaccharide binder derived from red algaeDóra Zalka, Alen Vižintin, Alexey Maximenko, Zoltán Pászti, Zoltán Dankházi, Kristóf Hegedüs, Lakshmi Shiva Shankar, Robert Kun, Karel Saksl, Andrea Straková Fedorková, Pál Jóvári, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 19.02.2025; Ogledov: 231; Prenosov: 111
 Celotno besedilo (4,99 MB)
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3. Understanding rate and capacity limitations in Li–S batteries based on solid-state sulfur conversion in confinementAyca Senol, Jean-Marc von Mentlen, Jean G. A. Ruthes, Francisco J. Garcia Soriano, Sara Drvarič Talian, Volker Presser, Lionel Porcar, Alen Vižintin, Vanessa Wood, Christian Prehal, 2024, izvirni znanstveni članek Objavljeno v DiRROS: 21.01.2025; Ogledov: 271; Prenosov: 130
Celotno besedilo (4,26 MB)
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4. Probing sodium structures and dynamics in hard carbon for Na-ion batteries using ▫$^{23}$▫Na operando solid-state NMR spectroscopyMatej Gabrijelčič, Blaž Tratnik, Gregor Kapun, Elena Tchernychova, Nataša Zabukovec Logar, Andraž Krajnc, Robert Dominko, Alen Vižintin, 2025, izvirni znanstveni članek Objavljeno v DiRROS: 07.01.2025; Ogledov: 293; Prenosov: 122
Celotno besedilo (5,01 MB)
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5. Sulfur speciation in Li–S batteries determined by operando laboratory X-ray emission spectroscopyAva Rajh, Alen Vižintin, Joanna Hoszowska, Robert Dominko, Matjaž Kavčič, 2024, izvirni znanstveni članek Povzetek: In this work, operando sulfur X-ray emission measurementson a Li−S battery cathode were performed using a laboratory setup as analternative to more common synchrotron radiation based absorptionstudies. Photoexcitation by an X-ray tube was used. Valence-to-core Kβ X-ray emission spectra were recorded with a wavelength dispersive crystalspectrometer in von Hamos geometry, providing excellent energyresolution and good detection efficiency. The setup was used to recordex situ S Kβ emission spectra from S cathodes from the Li−S battery andalso under operando conditions. Average S oxidation state within thebattery cathode during battery cycling was determined from the shape ofthe Kβ emission spectra. A more detailed S species characterization wasperformed by fitting a linear combination of previously measuredlaboratory synthesized standards to the measured spectra. Relative amounts of different S species in the cathode were determinedduring the cycling of the Li−S battery. The main advantage of X-ray emission spectroscopy is that it can be performed onconcentrated samples with S loading comparable to a real battery. The approach shows great promise for routine laboratory analysisof electrochemical processes in Li−S batteries and other sulfur-based systems under operando conditions.
Ključne besede: X-ray emission spectroscopy, lithium−sulfur batteries, operando measurements, oxidation state, von Hamos spectrometer
Objavljeno v DiRROS: 19.12.2024; Ogledov: 320; Prenosov: 148
Celotno besedilo (2,22 MB)
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6. Exploring hybrid hard carbon/▫$Bi_2S_3$▫-based negative electrodes for Na-ion batteriesBlaž Tratnik, Sergio Aina, Elena Tchernychova, Matej Gabrijelčič, Gregor Mali, Maria Pilar Lobera, Maria Bernechea, Mathieu Morcrette, Alen Vižintin, Robert Dominko, 2024, izvirni znanstveni članek Objavljeno v DiRROS: 06.06.2024; Ogledov: 736; Prenosov: 433
Celotno besedilo (3,24 MB)
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7. On the nanoscale structural evolution of solid discharge products in lithium-sulfur batteries using operando scatteringChristian Prehal, Jean-Marc von Mentlen, Sara Drvarič Talian, Alen Vižintin, Robert Dominko, Heinz Amentisch, Lionel Porcar, Stefan A. Freunberger, Vanessa Wood, 2022, izvirni znanstveni članek Objavljeno v DiRROS: 14.11.2022; Ogledov: 945; Prenosov: 578
Celotno besedilo (4,04 MB)
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8. Correlating structural properties with electrochemical behavior of non-graphitizable carbons in Na-ion batteriesBlaž Tratnik, Nigel Willy Van de Velde, Ivan Jerman, Gregor Kapun, Elena Tchernychova, Matija Tomšič, Andrej Jamnik, Boštjan Genorio, Alen Vižintin, Robert Dominko, 2022, izvirni znanstveni članek Objavljeno v DiRROS: 02.11.2022; Ogledov: 1256; Prenosov: 684
Celotno besedilo (7,28 MB)
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9. Synthesis and advanced electrochemical characterization of multifunctional electrocatalytic composite for unitized regenerative fuel cellLeonard Moriau, Marjan Bele, Alen Vižintin, Francisco Ruiz-Zepeda, Urša Petek, Primož Jovanovič, Martin Šala, Miran Gaberšček, Nejc Hodnik, 2019, izvirni znanstveni članek Ključne besede: electrocatalysis, bifunctional electrocatalysts, oxygen evolution reaction, oxygen reduction reaction, IL-TEM, IL-SEM, EFC-ICP-MS
Objavljeno v DiRROS: 24.11.2020; Ogledov: 2314; Prenosov: 1369
Celotno besedilo (3,51 MB)
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