Towards Nanostructured Electrocatalysts with Superior Stability

Publications

Resolving the nanoparticles' structure-property relationships at the atomic level: a study of Pt-based electrocatalysts

Author(s): Leonard Jean Moriau, Armin Hrnjić, Andraž Pavlišič, Ana Rebeka Kamšek, Urša Petek, Francisco Ruiz-Zepeda, Martin Šala, Luka Pavko, Vid Simon Šelih, Marjan Bele, Primož Jovanovič, Matija Gatalo, Nejc Hodnik
Published in: iScience, Issue 24/2, 2021, Page(s) 102102, ISSN 2589-0042
Publisher: Cell Press
DOI: 10.1016/j.isci.2021.102102

Inter‐relationships between Oxygen Evolution and Iridium Dissolution Mechanisms

Author(s): Anja Lončar; Daniel Escalera‐López; Serhiy Cherevko; Nejc Hodnik
Published in: Angewandte Chemie : International edition, Issue 4, 2021, Page(s) 1-12, ISSN 1433-7851
Publisher: John Wiley & Sons Ltd.
DOI: 10.1002/anie.202114437

Recent progress in the development of advanced support materials for electrocatalysis

Author(s): M. Smiljanić; I. Srejić; J. P. Georgijević; A. Maksić; M. Bele; N. Hodnik
Published in: ISSN: 2296-2646, Issue 8, 2023, ISSN 2296-2646
Publisher: Frontiers
DOI: 10.3389/fchem.2023.1304063

Iridium Stabilizes Ceramic Titanium Oxynitride Support for Oxygen Evolution Reaction

Author(s): Gorazd Koderman Podboršek; Luka Suhadolnik; Anja Lončar; 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
Published in: ACS Catalysis, Issue 2, 2022, Page(s) 15135–15145, ISSN 2155-5435
Publisher: American Chemical Society
DOI: 10.1021/acscatal.2c04160

Adjusting the Operational Potential Window as a Tool for Prolonging the Durability of Carbon-Supported Pt-Alloy Nanoparticles as Oxygen Reduction Reaction Electrocatalysts

Author(s): Tina Đukić; Léonard Jean Moriau; Iva Klofutar; Martin Šala; Luka Pavko; Francisco Javier González López; Francisco Ruiz-Zepeda; Andraž Pavlišič; Miha Hotko; Matija Gatalo; Nejc Hodnik
Published in: Crossref, Issue 2, 2024, ISSN 2155-5435
Publisher: American Chemical Society
DOI: 10.1021/acscatal.3c06251

Effect of the Morphology of the High-Surface-Area Support on the Performance of the Oxygen-Evolution Reaction for Iridium Nanoparticles

Author(s): Leonard Moriau, Marjan Bele, Živa Marinko, Francisco Ruiz-Zepeda, Gorazd Koderman Podboršek, Martin Šala, Angelja Kjara Šurca, Janez Kovač, Iztok Arčon, Primož Jovanovič, Nejc Hodnik, Luka Suhadolnik
Published in: ACS Catalysis, Issue 11/2, 2021, Page(s) 670-681, ISSN 2155-5435
Publisher: American Chemical Society
DOI: 10.1021/acscatal.0c04741

Intrinsic properties of nanoparticulate Ir-based catalysts for oxygen evolution reaction by AC voltammetry

Author(s): Ožbej Vodeb; Anja Lončar; Marjan Bele; Armin Hrnjić; Primož Jovanovič; Miran Gaberšček; Nejc Hodnik
Published in: Electrochimica acta, vol. 464, no. 142882, pp. 1-10, 2023., Issue 4, 2023, ISSN 0013-4686
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.electacta.2023.142882

Ir metal nanoparticles and IrO2 for acidic oxygen evolution reaction: Insight from Raman spectroscopy

Author(s): Leonard Moriau; Mohammed Azeezulla Nazrulla; Anja Logar; Luka Pavko; Marjan Bele; Nejc Hodnik; Angelja Kjara Surca
Published in: Sustainable Materials and Technologies, 2024, ISSN 2214-9937
Publisher: Elsevier
DOI: 10.1016/j.susmat.2024.e00901

Electrochemical Stability and Degradation Mechanisms of Commercial Carbon-Supported Gold Nanoparticles in Acidic Media

Author(s): Milutin Smiljanić, Urša Petek, Marjan Bele, Francisco Ruiz-Zepeda, Martin Šala, Primož Jovanovič, Miran Gaberšček, Nejc Hodnik
Published in: The Journal of Physical Chemistry C, Issue 125/1, 2021, Page(s) 635-647, ISSN 1932-7447
Publisher: American Chemical Society
DOI: 10.1021/acs.jpcc.0c10033

Towards improved online dissolution evaluation of Pt-alloy PEMFC electrocatalysts via electrochemical flow cell - ICP-MS setup upgrades

Author(s): Leonard Moriau; Tina Đukić; Vojtech Domin; Roman Kodym; Martin Prokop; Karel Bouzek; Matija Gatalo; Martin Šala; Nejc Hodnik
Published in: Electrochimica Acta, 2024, ISSN 0013-4686
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.electacta.2024.144200

Periodic Anti-Phase Boundaries and Crystal Superstructures in Ptcu3 Nanoparticles as Fuel Cell Electrocatalysts

Author(s): A.R. Kamšek; A. Meden; I. Arčon; P. Jovanovič; M. Šala; F. Ruiz-Zepeda; G. Dražić; M. Gaberšček; M. Bele; N. Hodnik
Published in: Materials Today Nano, Issue 3, 2023, ISSN 2588-8420
Publisher: Elsevier
DOI: 10.2139/ssrn.4422221

The role of high-resolution transmission electron microscopy and aberration corrected scanning transmission electron microscopy in unraveling the structure–property relationships of Pt-based fuel cells electrocatalysts

Author(s): Lazar Bijelić; Francisco Ruiz-Zepeda; Nejc Hodnik
Published in: COBISS-ID: 6083354, Issue 2, 2024, ISSN 2052-1553
Publisher: Royal Society of Chemistry
DOI: 10.1039/d3qi01998e

Improving the HER Activity and Stability of Pt Nanoparticles by Titanium Oxynitride Support

Author(s): Milutin Smiljanić; Stefan Panić; Marjan Bele; Francisco Ruiz-Zepeda; Luka Pavko; Lea Gašparič; Anton Kokalj; Miran Gaberšček; Nejc Hodnik
Published in: ACS Catalysis, Issue 1, 2022, Page(s) 13021–13033, ISSN 2155-5435
Publisher: American Chemical Society
DOI: 10.1021/acscatal.2c03214

Stability challenges of carbon-supported Pt-nanoalloys as fuel cell oxygen reduction reaction electrocatalysts

Author(s): Tina Đukić; Luka Pavko; Primož Jovanovič; Nik Maselj; Matija Gatalo; Nejc Hodnik
Published in: Crossref, Issue 1, 2022, Page(s) 13832-13854, ISSN 1359-7345
Publisher: Royal Society of Chemistry
DOI: 10.1039/d2cc05377b

Correlating oxygen functionalities and electrochemical durability of carbon supports for electrocatalysts

Author(s): Luka Pavko; Matija Gatalo; Tina Đukić; Francisco Ruiz-Zepeda; Angelja Kjara Surca; Martin Šala; Nik Maselj; Primož Jovanovič; Marjan Bele; Matjaž Finšgar; Boštjan Genorio; Nejc Hodnik; Miran Gaberšček
Published in: ISSN: 0008-6223, Issue 6, 2023, ISSN 0008-6223
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.carbon.2023.118458

Determination of the Electroactive Surface Area of Supported Ir-Based Oxygen Evolution Catalysts by Impedance Spectroscopy: Observed Anomalies with Respect to Catalyst Loading

Author(s): Anja Lončar; Primož Jovanovič; Nejc Hodnik; Miran Gaberšček
Published in: Journal of the Electrochemical Society, 2023, ISSN 0013-4651
Publisher: Electrochemical Society, Inc.
DOI: 10.1149/1945-7111/accaad

Nanotubular TiOxNy-Supported Ir Single Atoms and Clusters as Thin-Film Electrocatalysts for Oxygen Evolution in Acid Media

Author(s): Suhadolnik, Luka; Bele, Marjan; Čekada, Miha; Jovanovič, Primož; Maselj, Nik; Lončar, Anja; Dražić, Goran; Šala, Martin; Hodnik, Nejc; Kovač, Janez; Montini, Tiziano; Melchionna, Michele; Fornasiero, Paolo
Published in: Chemistry of materials 35 (2023): 2612–2623. doi:10.1021/acs.chemmater.3c00125, Issue 9, 2023, ISSN 0897-4756
Publisher: American Chemical Society
DOI: 10.1021/acs.chemmater.3c00125

Metal–Support Interaction between Titanium Oxynitride and Pt Nanoparticles Enables Efficient Low-Pt-Loaded High-Performance Electrodes at Relevant Oxygen Reduction Reaction Current Densities

Author(s): Armin 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
Published in: ACS catalysis, Issue 1, 2024, ISSN 2155-5435
Publisher: American Chemical Society
DOI: 10.1021/acscatal.3c03883

Alternative and facile production pathway towards obtaining high surface area PtCo/C intermetallic catalysts for improved PEM fuel cell performance

Author(s): Philipp A. Heizmann; Hien Nguyen; Miriam von Holst; Andreas Fischbach; Mitja Kostelec; Francisco Javier Gonzalez Lopez; Marjan Bele; Luka Pavko; Tina Đukić; Martin Šala; Francisco Ruiz-Zepeda; Carolin Klose; Matija Gatalo; Nejc Hodnik; Severin Vierrath; Matthias Breitwieser
Published in: RSC Advances, Issue 5, 2023, ISSN 2046-2069
Publisher: Royal Society of Chemistry
DOI: 10.1039/d2ra07780a

Suppressing Platinum Electrocatalyst Degradation via a High-Surface-Area Organic Matrix Support

Author(s): Milutin Smiljanić; Marjan Bele; Léonard Jean Moriau; John Fredy Vélez Santa; Svit Menart; Martin Šala; Armin Hrnjić; Primož Jovanovič; Francisco Ruiz-Zepeda; Miran Gaberšček; Nejc Hodnik
Published in: ACS Omega, Issue 7, 2022, Page(s) 3540-3548, ISSN 2470-1343
Publisher: American Chemical Society
DOI: 10.1021/acsomega.1c06028

Observing, tracking and analysing electrochemically induced atomic-scale structural changes of an individual Pt-Co nanoparticle as a fuel cell electrocatalyst by combining modified floating electrode and identical location electron microscopy

Author(s): Armin Hrnjic, Ana Rebeka Kamšek, Andraž Pavlišič, Martin Šala, Marjan Bele, Leonard Moriau, Matija Gatalo, Francisco Ruiz-Zepeda, Primož Jovanovič, Nejc Hodnik
Published in: Electrochimica Acta, Issue 388, 2021, Page(s) 138513, ISSN 0013-4686
Publisher: Pergamon Press Ltd.
DOI: 10.1016/j.electacta.2021.138513

Mechanistic Study of Fast Performance Decay of PtCu Alloy-based Catalyst Layers for Polymer Electrolyte Fuel Cells through Electrochemical Impedance Spectroscopy

Author(s): Maximilian Grandi; Matija Gatalo; Ana Rebeka Kamšek; Gregor Kapun; Kurt Mayer; Francisco Ruiz-Zepeda; Martin Šala; Bernhard Marius; Marjan Bele; Nejc Hodnik; Merit Bodner; Miran Gaberšček; Viktor Hacker
Published in: Materials, Vol 16, Iss 9, p 3544 (2023), Issue 14, 2023, ISSN 1996-1944
Publisher: MDPI Open Access Publishing
DOI: 10.3390/ma16093544

Benchmarking Fuel Cell Electrocatalysts Using Gas Diffusion Electrodes: Inter-lab Comparison and Best Practices

Author(s): Konrad Ehelebe; Nicolai Schmitt; Gustav Sievers; Anders W. Jensen; Armin Hrnjić; Pablo Collantes Jiménez; Pascal Kaiser; Moritz Geuß; Yu-Ping Ku; Primož Jovanovič; Karl J. J. Mayrhofer; Bastian Etzold; Nejc Hodnik; María Escudero-Escribano; Matthias Arenz; Serhiy Cherevko
Published in: ACS Energy Letters, Issue 8, 2022, Page(s) 816-826, ISSN 2380-8195
Publisher: American Chemical Society
DOI: 10.1021/acsenergylett.1c02659

“Nano Lab” Advanced Characterization Platform for Studying Electrocatalytic Iridium Nanoparticles Dispersed on TiOxNy Supports Prepared on Ti Transmission Electron Microscopy Grids

Author(s): Bele, Marjan; Podboršek, Gorazd Koderman; Lončar, Anja; Jovanovič, Primož; Hrnjić, Armin; Marinko, Živa; Kovač, Janez; Surca, Angelja Kjara; Kamšek, Ana Rebeka; Dražić, Goran; Hodnik, Nejc; Suhadolnik, Luka
Published in: ACS applied nano materials, Issue 12, 2023, ISSN 2574-0970
Publisher: ACS
DOI: 10.1021/acsanm.3c01368

Modified Floating Electrode Apparatus for Advanced Characterization of Oxygen Reduction Reaction Electrocatalysts

Author(s): Armin Hrnjić, Francisco Ruiz-Zepeda, Miran Gaberšček, Marjan Bele, Luka Suhadolnik, Nejc Hodnik, Primož Jovanovič
Published in: Journal of The Electrochemical Society, Issue 167/16, 2020, Page(s) 166501, ISSN 1945-7111
Publisher: Journal of the Electrochemical Society
DOI: 10.1149/1945-7111/abc9de

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