1
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Kormanyos A, Büttner P, Bosch M, Minichova M, Körner A, Jenewein KJ, Hutzler A, Mayrhofer KJJ, Bachmann J, Cherevko S. Stability of Bimetallic Pt xRu y - From Model Surfaces to Nanoparticulate Electrocatalysts. ACS MATERIALS AU 2024; 4:286-299. [PMID: 38737117 PMCID: PMC11083114 DOI: 10.1021/acsmaterialsau.3c00092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 05/14/2024]
Abstract
Fundamental research campaigns in electrocatalysis often involve the use of model systems, such as single crystals or magnetron-sputtered thin films (single metals or metal alloys). The downsides of these approaches are that oftentimes only a limited number of compositions are picked and tested (guided by chemical intuition) and that the validity of trends is not verified under operating conditions typically present in real devices. These together can lead to deficient conclusions, hampering the direct application of newly discovered systems in real devices. In this contribution, the stability of magnetron-sputtered bimetallic PtxRuy thin film electrocatalysts (0 at. % to 100 at. % Ru content) along with three commercially available carbon-supported counterparts (50-67 at. % Ru content) was mapped under electrocatalytic conditions in acidic electrolytes using online ICP-MS. We found several differences between the two systems in the amount of metals dissolved along with the development of the morphology and composition. While the Pt-rich PtxRuy compositions remained unchanged, 30-50 nm diameter surface pits were detected in the case of the Ru-rich sputtered thin films. Contrastingly, the surface of the carbon-supported NPs enriched in Pt accompanied by the leaching of a significant amount of Ru from the alloy structure was observed. Change in morphology was accompanied by a mass loss reaching around 1-2 wt % in the case of the sputtered samples and almost 10 wt % for the NPs. Since PtxRuy has prime importance in driving alcohol oxidation reactions, the stability of all investigated alloys was screened in the presence of isopropanol. While Pt dissolution was marginally affected by the presence of isopropanol, several times higher Ru dissolution was detected, especially in the case of the Ru-rich compositions. Our results underline that trends in terms of electrocatalytic activity and stability cannot always be transferred from model samples to systems that are closer to the ones applied in real devices.
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Affiliation(s)
- Attila Kormanyos
- Helmholtz
Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Cauerstr. 1, 91058 Erlangen, Germany
- Department
of Physical Chemistry and Materials Science, University of Szeged, Aradi sq. 1, Szeged 6720, Hungary
| | - Pascal Büttner
- Chemistry
of Thin Film Materials, IZNF, Friedrich-Alexander-Universität
Erlangen-Nürnberg (FAU), Cauerstr. 3, 91058 Erlangen, Germany
| | - Michael Bosch
- Chemistry
of Thin Film Materials, IZNF, Friedrich-Alexander-Universität
Erlangen-Nürnberg (FAU), Cauerstr. 3, 91058 Erlangen, Germany
| | - Maria Minichova
- Helmholtz
Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Cauerstr. 1, 91058 Erlangen, Germany
- Department
of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Andreas Körner
- Helmholtz
Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Cauerstr. 1, 91058 Erlangen, Germany
- Department
of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Ken J. Jenewein
- Helmholtz
Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Cauerstr. 1, 91058 Erlangen, Germany
- Department
of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Andreas Hutzler
- Helmholtz
Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Cauerstr. 1, 91058 Erlangen, Germany
| | - Karl J. J. Mayrhofer
- Helmholtz
Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Cauerstr. 1, 91058 Erlangen, Germany
- Department
of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Julien Bachmann
- Chemistry
of Thin Film Materials, IZNF, Friedrich-Alexander-Universität
Erlangen-Nürnberg (FAU), Cauerstr. 3, 91058 Erlangen, Germany
| | - Serhiy Cherevko
- Helmholtz
Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Cauerstr. 1, 91058 Erlangen, Germany
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2
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Wieser P, Moser D, Gollas B, Amenitsch H. Monitoring of Pore Orientation by in Operando Grazing Incidence Small-Angle X-ray Scattering during Templated Electrodeposition of Mesoporous Pt Films. ACS APPLIED MATERIALS & INTERFACES 2023; 15:47604-47614. [PMID: 37769130 PMCID: PMC10571001 DOI: 10.1021/acsami.3c03316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 09/11/2023] [Indexed: 09/30/2023]
Abstract
We have used in operando grazing incidence small-angle X-ray scattering (GISAXS) to monitor structural changes during templated electrodeposition of mesoporous platinum films on gold electrodes from a ternary lyotropic liquid crystalline mixture of aqueous hexachloroplatinic acid and the diblock copolymer surfactant Brij56. While the cylindrical micelles of the lyotropic liquid crystal (LLC) in the hexagonal phase have a center-to-center distance of 7.5 nm with a preferential alignment parallel to the electrode surface, the electrodeposited platinum films contain highly ordered mesopores arranged in a 2D hexagonal structure, with a center-to-center distance of about 8.5 nm and a preferential orientation perpendicular to the electrode surface. The progression of structural changes of the LLC template and the deposited mesoporous Pt could be monitored for the first time in operando by GISAXS: within the first 14 s of deposition, a nucleation burst of Pt coincides with a loss of preferential alignment of the LLC. Initially, the morphology of the 2-dimensionally nucleated Pt replicates the Au substrate. During the following 5 to 7 min, the growth morphology of the Pt film changes, and vertically aligned mesopores form. Our results indicate mutual interaction between the species involved in the electrodeposition and the LLC template, leading to a partial loss of horizontal orientation of the LLC during Pt nucleation before vertical rearrangement of the micelles to the electrode surface. The vertically aligned mesopores in the Pt and the possibility to produce freestanding films make these materials interesting in fields such as electrocatalysis, energy harvesting, and nanofluidics.
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Affiliation(s)
- Philipp
Aldo Wieser
- Institute
of Inorganic Chemistry, Graz University
of Technology, Graz 8010, Austria
| | - David Moser
- Institute
of Electron Microscopy and Nanoanalysis, Graz University of Technology, Graz 8010, Austria
| | - Bernhard Gollas
- Institute
for Chemistry and Technology of Materials, Graz University of Technology, Graz 8010, Austria
| | - Heinz Amenitsch
- Institute
of Inorganic Chemistry, Graz University
of Technology, Graz 8010, Austria
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3
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Xie X, Briega-Martos V, Farris R, Dopita M, Vorokhta M, Skála T, Matolínová I, Neyman KM, Cherevko S, Khalakhan I. Optimal Pt-Au Alloying for Efficient and Stable Oxygen Reduction Reaction Catalysts. ACS APPLIED MATERIALS & INTERFACES 2023; 15:1192-1200. [PMID: 36578102 DOI: 10.1021/acsami.2c18655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Stabilization of cathode catalysts in hydrogen-fueled proton-exchange membrane fuel cells (PEMFCs) is paramount to their widespread commercialization. Targeting that aim, Pt-Au alloy catalysts with various compositions (Pt95Au5, Pt90Au10, and Pt80Au20) prepared by magnetron sputtering were investigated. The promising stability improvement of the Pt-Au catalyst, manifested in suppressed platinum dissolution with increasing Au content, was documented over an extended potential range up to 1.5 VRHE. On the other hand, at elevated concentrations, Au showed a detrimental effect on oxygen reduction reaction activity. A systematic study involving complementary characterization techniques, electrochemistry, and Monte Carlo simulations based on density functional theory data enabled us to gain a comprehensive understanding of the composition-activity-stability relationship to find optimal Pt-Au alloying for maintaining the activity of platinum and improving its resistance to dissolution. According to the results, Pt-Au alloy with 10% gold represent the most promising composition retaining the activity of monometallic Pt while suppressing Pt dissolution by 50% at the upper potential limit of 1.2 VRHE and by 20% at devastating 1.5 VRHE.
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Affiliation(s)
- Xianxian Xie
- Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, V Holešovičkách 2, Prague 8 18000, Czech Republic
| | - Valentín Briega-Martos
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Cauerstr. 1, Erlangen 91058, Germany
| | - Riccardo Farris
- Departament de Ciència de Materials i Química Física & Institut de Quimica Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/Martí i Franquès 1, Barcelona 08028, Spain
| | - Milan Dopita
- Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Charles University, Ke Karlovu 5, Prague 2 12116, Czech Republic
| | - Mykhailo Vorokhta
- Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, V Holešovičkách 2, Prague 8 18000, Czech Republic
| | - Tomáš Skála
- Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, V Holešovičkách 2, Prague 8 18000, Czech Republic
| | - Iva Matolínová
- Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, V Holešovičkách 2, Prague 8 18000, Czech Republic
| | - Konstantin M Neyman
- Departament de Ciència de Materials i Química Física & Institut de Quimica Teòrica i Computacional (IQTCUB), Universitat de Barcelona, c/Martí i Franquès 1, Barcelona 08028, Spain
- ICREA (Institució Catalana de Recerca i Estudis Avançats), Barcelona 08010, Spain
| | - Serhiy Cherevko
- Forschungszentrum Jülich GmbH, Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Cauerstr. 1, Erlangen 91058, Germany
| | - Ivan Khalakhan
- Faculty of Mathematics and Physics, Department of Surface and Plasma Science, Charles University, V Holešovičkách 2, Prague 8 18000, Czech Republic
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4
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Piliai L, Matvija P, Dinhová TN, Khalakhan I, Skála T, Doležal Z, Bezkrovnyi O, Kepinski L, Vorokhta M, Matolínová I. In Situ Spectroscopy and Microscopy Insights into the CO Oxidation Mechanism on Au/CeO 2(111). ACS APPLIED MATERIALS & INTERFACES 2022; 14:56280-56289. [PMID: 36484234 DOI: 10.1021/acsami.2c15792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this work, we prepared and investigated in ultra-high vacuum (UHV) two stoichiometric CeO2(111) surfaces containing low and high amounts of step edges decorated with 0.05 ML of gold using synchrotron-radiation photoelectron spectroscopy (SRPES) and scanning tunneling microscopy (STM). The UHV study helped to solve the still unresolved puzzle on how the one-monolayer-high ceria step edges affect the metal-substrate interaction between Au and the CeO2(111) surface. It was found that the concentration of ionic Au+ species on the ceria surface increases with increasing number of ceria step edges and is not correlated with the concentration of Ce3+ ions that are supposed to form on the surface after its interaction with gold nanoparticles. We associated this with an additional channel of Au+ formation on the surface of CeO2(111) related to the interaction of Au atoms with various peroxo oxygen species formed at the ceria step edges during the film growth. The study of CO oxidation on the highly stepped Au/CeO2(111) model sample was performed by combining near-ambient-pressure X-ray photoelectron spectroscopy (NAP-XPS), UHV-STM, and near-ambient-pressure STM (NAP-STM). This powerful combination provided comprehensive information on the processes occurring on the Au/CeO2(111) surface during the interaction with CO, O2, and CO + O2 (1:1) mixture at conditions close to the real working conditions of CO oxidation. It was found that the system demonstrates high stability in CO. However, the surface undergoes substantial chemical and morphological changes as the O2 is added to the reaction cell. Already at 300 K, gold nanoparticles begin to grow using a mechanism that involves the disintegration of small gold nanoparticles in favor of the large ones. With increasing temperature, the model catalyst quickly transforms into a system of primarily large Au particles that contains no ionic gold species.
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Affiliation(s)
- Lesia Piliai
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Peter Matvija
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Thu Ngan Dinhová
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Ivan Khalakhan
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Tomas Skála
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Zdeněk Doležal
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Oleksii Bezkrovnyi
- W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Leszek Kepinski
- W. Trzebiatowski Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland
| | - Mykhailo Vorokhta
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
| | - Iva Matolínová
- Department of Surface and Plasma Science, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 2, 180 00 Prague 8, Czech Republic
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5
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Kreider ME, Kamat GA, Zamora Zeledón JA, Wei L, Sokaras D, Gallo A, Stevens MB, Jaramillo TF. Understanding the Stability of Manganese Chromium Antimonate Electrocatalysts through Multimodal In Situ and Operando Measurements. J Am Chem Soc 2022; 144:22549-22561. [PMID: 36453840 DOI: 10.1021/jacs.2c08600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Improving electrocatalyst stability is critical for the development of electrocatalytic devices. Herein, we utilize an on-line electrochemical flow cell coupled with an inductively coupled plasma-mass spectrometer (ICP-MS) to characterize the impact of composition and reactant gas on the multielement dissolution of Mn(-Cr)-Sb-O electrocatalysts. Compared to Mn2O3 and Cr2O3 oxides, the antimonate framework stabilizes Mn at OER potentials and Cr at both ORR and OER potentials. Furthermore, dissolution of Mn and Cr from Mn(-Cr) -Sb-O is driven by the ORR reaction rate, with minimal dissolution under N2. We observe preferential dissolution of Cr totaling 13% over 10 min at 0.3, 0.6, and 0.9 V vs RHE, with only 1.5% loss of Mn, indicating an enrichment of Mn at the surface of the particles. Despite this asymmetric dissolution, operando X-ray absorption spectroscopy (XAS) showed no measurable changes in the Mn K-edge at comparable potentials. This could suggest that modification to the Mn oxidation state and/or phase in the surface layer is too small or that the layer is too thin to be measured with the bulk XAS measurement. Lastly, on-line ICP-MS was used to assess the effects of applied potential, scan rate, and current on Mn-Cr-Sb-O during cyclic voltammetry and accelerated stress tests. With this deeper understanding of the interplay between oxygen reduction and dissolution, testing procedures were identified to maximize both activity and stability. This work highlights the use of multimodal in situ characterization techniques in tandem to build a more complete model of stability and develop protocols for optimizing catalyst performance.
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Affiliation(s)
- Melissa E Kreider
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Gaurav A Kamat
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - José A Zamora Zeledón
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Lingze Wei
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Dimosthenis Sokaras
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Alessandro Gallo
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Michaela Burke Stevens
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Thomas F Jaramillo
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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6
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Wang Y, Han C, Xie P, Li H, Yao P, Cao J, Ruan M, Song P, Gong X, Lu M, Xu W. Highly dispersed PtNi nanoparticles modified carbon black as high-performanced electrocatalyst for oxygen reduction in acidic medium. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115908] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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7
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Ahn CY, Park JE, Kim S, Kim OH, Hwang W, Her M, Kang SY, Park S, Kwon OJ, Park HS, Cho YH, Sung YE. Differences in the Electrochemical Performance of Pt-Based Catalysts Used for Polymer Electrolyte Membrane Fuel Cells in Liquid Half- and Full-Cells. Chem Rev 2021; 121:15075-15140. [PMID: 34677946 DOI: 10.1021/acs.chemrev.0c01337] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A substantial amount of research effort has been directed toward the development of Pt-based catalysts with higher performance and durability than conventional polycrystalline Pt nanoparticles to achieve high-power and innovative energy conversion systems. Currently, attention has been paid toward expanding the electrochemically active surface area (ECSA) of catalysts and increase their intrinsic activity in the oxygen reduction reaction (ORR). However, despite innumerable efforts having been carried out to explore this possibility, most of these achievements have focused on the rotating disk electrode (RDE) in half-cells, and relatively few results have been adaptable to membrane electrode assemblies (MEAs) in full-cells, which is the actual operating condition of fuel cells. Thus, it is uncertain whether these advanced catalysts can be used as a substitute in practical fuel cell applications, and an improvement in the catalytic performance in real-life fuel cells is still necessary. Therefore, from a more practical and industrial point of view, the goal of this review is to compare the ORR catalyst performance and durability in half- and full-cells, providing a differentiated approach to the durability concerns in half- and full-cells, and share new perspectives for strategic designs used to induce additional performance in full-cell devices.
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Affiliation(s)
- Chi-Yeong Ahn
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - Ji Eun Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - Sungjun Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - Ok-Hee Kim
- Department of Science, Republic of Korea Naval Academy, Jinhae-gu, Changwon 51704, South Korea
| | - Wonchan Hwang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - Min Her
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - Sun Young Kang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - SungBin Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
| | - Oh Joong Kwon
- Department of Energy and Chemical Engineering, Incheon National University, Incheon 22012, South Korea
| | - Hyun S Park
- Center for Hydrogen-Fuel Cell Research, Korea Institute of Science and Technology, Seoul 02792, South Korea
| | - Yong-Hun Cho
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,Department of Chemical Engineering, Kangwon National University, Samcheok 25913, South Korea
| | - Yung-Eun Sung
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, South Korea.,School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, South Korea
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8
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Bogar M, Yakovlev Y, Sandbeck DJS, Cherevko S, Matolínová I, Amenitsch H, Khalakhan I. Interplay Among Dealloying, Ostwald Ripening, and Coalescence in Pt XNi 100–X Bimetallic Alloys under Fuel-Cell-Related Conditions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01111] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Marco Bogar
- CERIC-ERIC c/o Elettra Synchrotron, S.S. 14 Km 163.5, 34149 Trieste, Italy
- Graz University of Technology, Institute for Inorganic Chemistry, Stremayrgasse 9, 8010 Graz, Austria
| | - Yurii Yakovlev
- Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, 18000 Prague 8, Czech Republic
| | - Daniel John Seale Sandbeck
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Egerlandstr. 3, 91058 Erlangen, Germany
- Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - Serhiy Cherevko
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Egerlandstr. 3, 91058 Erlangen, Germany
| | - Iva Matolínová
- Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, 18000 Prague 8, Czech Republic
| | - Heinz Amenitsch
- Graz University of Technology, Institute for Inorganic Chemistry, Stremayrgasse 9, 8010 Graz, Austria
| | - Ivan Khalakhan
- Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, 18000 Prague 8, Czech Republic
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9
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Cao J, Cao H, Wang F, Zhu H. Fully ordered L10-PtCoAu electrocatalyst derived from PtAu@CoO precursor with enhanced performance for oxygen reduction reaction. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138266] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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