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Antonyshyn I, Sichevych O, Burkhardt U, Barrios Jiménez AM, Melendez-Sans A, Liao YF, Tsuei KD, Kasinathan D, Takegami D, Ormeci A. Al-Pt intermetallic compounds: HAXPES study. Phys Chem Chem Phys 2023; 25:31137-31145. [PMID: 37947387 DOI: 10.1039/d3cp03559j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
Intermetallic compounds in the Al-Pt system were systematically studied via hard X-ray photoelectron spectroscopy, focusing on the positions of Pt 4f and Al 2s core levels and valence band features. On one hand, with increasing Al content, the Pt 4f core levels shift towards higher binding energies (BE), revealing the influence of the atomic interactions (chemical bonding) on the electronic state of Pt. On the other hand, the charge transfer from Al to Pt increases with increasing Al content in Al-Pt compounds. These two facts cannot be combined using the standard "chemical shift" approach. Computational analysis reveals that higher negative effective charges of Pt atoms are accompanied by reduced occupancy of Pt 5d orbitals, leading to the limited availability of these electrons for the screening of the 4f core hole and this in turn explains the experimentally observed shift of 4f core levels to higher BE.
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Affiliation(s)
- Iryna Antonyshyn
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany.
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Olga Sichevych
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany.
| | - Ulrich Burkhardt
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany.
| | | | - Anna Melendez-Sans
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany.
| | - Yen-Fa Liao
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, 30076 Hsinchu, Taiwan
| | - Ku-Ding Tsuei
- National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, 30076 Hsinchu, Taiwan
| | - Deepa Kasinathan
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany.
| | - Daisuke Takegami
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany.
| | - Alim Ormeci
- Max-Planck-Institut für Chemische Physik fester Stoffe, Nöthnitzer Str. 40, 01187 Dresden, Germany.
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2
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Ring L, Pollet BG, Chatenet M, Abbou S, Küpper K, Schmidt M, Huck M, Gries A, Steinhart M, Schäfer H. From Bad Electrochemical Practices to an Environmental and Waste Reducing Approach for the Generation of Active Hydrogen Evolving Electrodes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908649] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Lisa Ring
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of Osnabrück Barbarastrasse 7 49076 Osnabrück Germany
| | - Bruno G. Pollet
- Hydrogen Energy and Sonochemistry Research groupDepartment of Energy and Process EngineeringFaculty of EngineeringNorwegian University of Science and Technology (NTNU) O-7491 Trondheim Norway
| | - Marian Chatenet
- Univ. Grenoble AlpesCNRS, Grenoble-INPInstitute of EngineeringUniv. Grenoble Alpes), LEPMI 38000 Grenoble France
| | - Sofyane Abbou
- Univ. Grenoble AlpesCNRS, Grenoble-INPInstitute of EngineeringUniv. Grenoble Alpes), LEPMI 38000 Grenoble France
| | - Karsten Küpper
- Department of PhysicsUniversität Osnabrück Barbarastrasse 7 49076 Osnabrück Germany
| | - Mercedes Schmidt
- Institut für Chemie neuer MaterialienUniversität Osnabrück Barbarastr. 7 49076 Osnabrück Germany
| | - Marten Huck
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of Osnabrück Barbarastrasse 7 49076 Osnabrück Germany
| | - Aurelia Gries
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of Osnabrück Barbarastrasse 7 49076 Osnabrück Germany
| | - Martin Steinhart
- Institut für Chemie neuer MaterialienUniversität Osnabrück Barbarastr. 7 49076 Osnabrück Germany
| | - Helmut Schäfer
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of Osnabrück Barbarastrasse 7 49076 Osnabrück Germany
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3
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Ring L, Pollet BG, Chatenet M, Abbou S, Küpper K, Schmidt M, Huck M, Gries A, Steinhart M, Schäfer H. From Bad Electrochemical Practices to an Environmental and Waste Reducing Approach for the Generation of Active Hydrogen Evolving Electrodes. Angew Chem Int Ed Engl 2019; 58:17383-17392. [PMID: 31539189 PMCID: PMC7155044 DOI: 10.1002/anie.201908649] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Indexed: 11/25/2022]
Abstract
The electrodeposition of noble metals using corresponding dissolved metal salts represents an interesting process for the improvement of the electrocatalytic hydrogen evolution reaction (HER) properties of less active substrate materials. The fact that only a small fraction of the dissolved noble metals reaches the substrate represents a serious obstacle to this common procedure. We therefore chose a different path. It was found that the HER activity of Ni42 alloy drastically increased (η=140 mV at j=10 mA cm−2; pH 1) when a platinum counter electrode was used during polarization experiments in acid. This improvement was caused by a platinum transfer from the platinum anode to the steel cathode, a process which occurred simultaneously to the hydrogen evolution. The negligible accumulation of Pt (26 μg) in the electrolyte turns this straight‐forward transfer procedure into a highly cost‐effective, environmentally friendly, and waste reducing approach for the generation of cheap, stable and effective HER electrodes.
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Affiliation(s)
- Lisa Ring
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of OsnabrückBarbarastrasse 749076OsnabrückGermany
| | - Bruno G. Pollet
- Hydrogen Energy and Sonochemistry Research groupDepartment of Energy and Process EngineeringFaculty of EngineeringNorwegian University of Science and Technology (NTNU)O-7491TrondheimNorway
| | - Marian Chatenet
- Univ. Grenoble AlpesCNRS, Grenoble-INPInstitute of EngineeringUniv. Grenoble Alpes), LEPMI38000GrenobleFrance
| | - Sofyane Abbou
- Univ. Grenoble AlpesCNRS, Grenoble-INPInstitute of EngineeringUniv. Grenoble Alpes), LEPMI38000GrenobleFrance
| | - Karsten Küpper
- Department of PhysicsUniversität OsnabrückBarbarastrasse 749076OsnabrückGermany
| | - Mercedes Schmidt
- Institut für Chemie neuer MaterialienUniversität OsnabrückBarbarastr. 749076OsnabrückGermany
| | - Marten Huck
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of OsnabrückBarbarastrasse 749076OsnabrückGermany
| | - Aurelia Gries
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of OsnabrückBarbarastrasse 749076OsnabrückGermany
| | - Martin Steinhart
- Institut für Chemie neuer MaterialienUniversität OsnabrückBarbarastr. 749076OsnabrückGermany
| | - Helmut Schäfer
- Institute of Chemistry of New MaterialsThe Electrochemical Energy and Catalysis groupUniversity of OsnabrückBarbarastrasse 749076OsnabrückGermany
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4
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Spöri C, Kwan JTH, Bonakdarpour A, Wilkinson DP, Strasser P. Stabilitätsanforderungen von Elektrokatalysatoren für die Sauerstoffentwicklung: der Weg zu einem grundlegenden Verständnis und zur Minimierung der Katalysatordegradation. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201608601] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Camillo Spöri
- The Electrochemical Energy, Catalysis and Materials, Science Laboratory, Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Deutschland
| | - Jason Tai Hong Kwan
- Department of Chemical and Biological Engineering; University of British Columbia; 2360 East Mall Vancouver B.C V6T 1Z3 Kanada
| | - Arman Bonakdarpour
- Department of Chemical and Biological Engineering; University of British Columbia; 2360 East Mall Vancouver B.C V6T 1Z3 Kanada
| | - David P. Wilkinson
- Department of Chemical and Biological Engineering; University of British Columbia; 2360 East Mall Vancouver B.C V6T 1Z3 Kanada
| | - Peter Strasser
- The Electrochemical Energy, Catalysis and Materials, Science Laboratory, Institut für Chemie; Technische Universität Berlin; Straße des 17. Juni 124 10623 Berlin Deutschland
- Ertl Center for Electrochemistry and Catalysis; Gwangju Institute of Science and Technology; Gwangju 500-712 Südkorea
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5
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Spöri C, Kwan JTH, Bonakdarpour A, Wilkinson DP, Strasser P. The Stability Challenges of Oxygen Evolving Catalysts: Towards a Common Fundamental Understanding and Mitigation of Catalyst Degradation. Angew Chem Int Ed Engl 2017; 56:5994-6021. [PMID: 27805788 DOI: 10.1002/anie.201608601] [Citation(s) in RCA: 288] [Impact Index Per Article: 41.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Indexed: 11/09/2022]
Abstract
This Review addresses the technical challenges, scientific basis, recent progress, and outlook with respect to the stability and degradation of catalysts for the oxygen evolution reaction (OER) operating at electrolyzer anodes in acidic environments with an emphasis on ion exchange membrane applications. First, the term "catalyst stability" is clarified, as well as current performance targets, major catalyst degradation mechanisms, and their mitigation strategies. Suitable in situ experimental methods are then evaluated to give insight into catalyst degradation and possible pathways to tune OER catalyst stability. Finally, the importance of identifying universal figures of merit for stability is highlighted, leading to a comprehensive accelerated lifetime test that could yield comparable performance data across different laboratories and catalyst types. The aim of this Review is to help disseminate and stress the important relationships between structure, composition, and stability of OER catalysts under different operating conditions.
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Affiliation(s)
- Camillo Spöri
- The Electrochemical Energy, Catalysis and Materials Science Laboratory, Department of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany
| | - Jason Tai Hong Kwan
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C, V6T 1Z3, Canada
| | - Arman Bonakdarpour
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C, V6T 1Z3, Canada
| | - David P Wilkinson
- Department of Chemical and Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, B.C, V6T 1Z3, Canada
| | - Peter Strasser
- The Electrochemical Energy, Catalysis and Materials Science Laboratory, Department of Chemistry, Technische Universität Berlin, Strasse des 17. Juni 124, 10623, Berlin, Germany.,Ertl Center for Electrochemistry and Catalysis, Gwangju Institute of Science and Technology, Gwangju, 500-712, South Korea
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6
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Kalz KF, Kraehnert R, Dvoyashkin M, Dittmeyer R, Gläser R, Krewer U, Reuter K, Grunwaldt J. Future Challenges in Heterogeneous Catalysis: Understanding Catalysts under Dynamic Reaction Conditions. ChemCatChem 2017; 9:17-29. [PMID: 28239429 PMCID: PMC5299475 DOI: 10.1002/cctc.201600996] [Citation(s) in RCA: 203] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Indexed: 01/12/2023]
Abstract
In the future, (electro-)chemical catalysts will have to be more tolerant towards a varying supply of energy and raw materials. This is mainly due to the fluctuating nature of renewable energies. For example, power-to-chemical processes require a shift from steady-state operation towards operation under dynamic reaction conditions. This brings along a number of demands for the design of both catalysts and reactors, because it is well-known that the structure of catalysts is very dynamic. However, in-depth studies of catalysts and catalytic reactors under such transient conditions have only started recently. This requires studies and advances in the fields of 1) operando spectroscopy including time-resolved methods, 2) theory with predictive quality, 3) kinetic modelling, 4) design of catalysts by appropriate preparation concepts, and 5) novel/modular reactor designs. An intensive exchange between these scientific disciplines will enable a substantial gain of fundamental knowledge which is urgently required. This concept article highlights recent developments, challenges, and future directions for understanding catalysts under dynamic reaction conditions.
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Affiliation(s)
- Kai F. Kalz
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)D-76344Eggenstein-LeopoldshafenGermany
| | - Ralph Kraehnert
- Department of ChemistryTechnische Universität BerlinD-10623BerlinGermany
| | - Muslim Dvoyashkin
- Institute of Chemical TechnologyUniversität LeipzigD-04103LeipzigGermany
| | - Roland Dittmeyer
- Institute for Micro Process Engineering (IMVT)Karlsruhe Institute of Technology (KIT)D-76344Eggenstein-LeopoldshafenGermany
| | - Roger Gläser
- Institute of Chemical TechnologyUniversität LeipzigD-04103LeipzigGermany
| | - Ulrike Krewer
- Institute of Energy and Process Systems EngineeringTU BraunschweigD-38106BraunschweigGermany
| | - Karsten Reuter
- Chair for Theoretical Chemistry and Catalysis Research CenterTechnische Universität MünchenD-85747GarchingGermany
| | - Jan‐Dierk Grunwaldt
- Institute of Catalysis Research and Technology (IKFT)Karlsruhe Institute of Technology (KIT)D-76344Eggenstein-LeopoldshafenGermany
- Institute for Chemical Technology and Polymer Chemistry (ITCP)Karlsruhe Institute of Technology (KIT)D-76131KarlsruheGermany
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7
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Johnson B, Ranjan C, Greiner M, Arrigo R, Schuster ME, Höpfner B, Gorgoi M, Lauermann I, Willinger M, Knop-Gericke A, Schlögl R. Characterization of Platinum and Iridium Oxyhydrate Surface Layers from Platinum and Iridium Foils. CHEMSUSCHEM 2016; 9:1634-1646. [PMID: 27226255 DOI: 10.1002/cssc.201600143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Indexed: 06/05/2023]
Abstract
Platinum and iridium polycrystalline foils were oxidized electrochemically through anodization to create thin platinum and iridium hydrous oxide layers, which were analyzed through laboratory photoelectron spectroscopy during heating and time series (temperature-programmed spectroscopy). The films contain oxygen in the form of bound oxides, water, and hydroxides and were investigated by depth profiling with high-energy photoelectron spectroscopy. The Pt films are unstable and begin to degrade immediately after removal from the electrolyte to form core-shell structures with a metallic inner core and a hydrous oxide outer shell almost devoid of Pt. However, evidence was found for metastable intermediate states of degradation; therefore, it may be possible to manufacture PtOx phases with increased stability. Heating the film to even 100 °C causes accelerated degradation, which shows that stoichiometric oxides such as PtO2 or PtO are not the active species in the electrolyte. The Ir films exhibit increased stability and higher surface Ir content, and gentle heating at low temperatures leads to a decrease in defect density. Although both layers are based on noble metals, their surface structures are markedly different. The complexity of such hydrous oxide systems is discussed in detail with the goal of identifying the film composition more precisely.
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Affiliation(s)
- Benjamin Johnson
- Fritz Haber Institute, Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany.
| | - Chinmoy Ranjan
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470Mülheim an der Ruhr, Germany
| | - Mark Greiner
- Fritz Haber Institute, Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Rosa Arrigo
- Fritz Haber Institute, Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
- Diamond Light Sourc Ltd., Diamond House, Harwell Science and Innovation Campus Didcot, Oxfordshire, OX11 0DE, UK
| | - Manfred Erwin Schuster
- Fritz Haber Institute, Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
- Johnson Matthey
| | - Britta Höpfner
- Helmholtz Zentrum für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Mihaela Gorgoi
- Helmholtz Zentrum für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Iver Lauermann
- Helmholtz Zentrum für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Marc Willinger
- Fritz Haber Institute, Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Axel Knop-Gericke
- Fritz Haber Institute, Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
| | - Robert Schlögl
- Fritz Haber Institute, Max Planck Society, Faradayweg 4-6, 14195, Berlin, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470Mülheim an der Ruhr, Germany
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8
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Jeong B, Ocon JD, Lee J. Elektrodenarchitektur in galvanischen und elektrolytischen Energiezellen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201507780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Beomgyun Jeong
- School of Environmental Science and Engineering; Ertl Center for Electrochemistry and Catalysis; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 Südkorea
| | - Joey D. Ocon
- School of Environmental Science and Engineering; Ertl Center for Electrochemistry and Catalysis; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 Südkorea
- Laboratory of Electrochemical Engineering (LEE); Department of Chemical Engineering; University of the Philippines Diliman; Quezon City Philippinen
| | - Jaeyoung Lee
- School of Environmental Science and Engineering; Ertl Center for Electrochemistry and Catalysis; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 Südkorea
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9
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Jeong B, Ocon JD, Lee J. Electrode Architecture in Galvanic and Electrolytic Energy Cells. Angew Chem Int Ed Engl 2016; 55:4870-80. [DOI: 10.1002/anie.201507780] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 09/21/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Beomgyun Jeong
- School of Environmental Science and Engineering; Ertl Center for Electrochemistry and Catalysis; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 South Korea
| | - Joey D. Ocon
- School of Environmental Science and Engineering; Ertl Center for Electrochemistry and Catalysis; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 South Korea
- Laboratory of Electrochemical Engineering (LEE); Department of Chemical Engineering; University of the Philippines Diliman; Quezon City Philippines
| | - Jaeyoung Lee
- School of Environmental Science and Engineering; Ertl Center for Electrochemistry and Catalysis; Gwangju Institute of Science and Technology (GIST); Gwangju 61005 South Korea
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10
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Velasco‐Velez JJ, Pfeifer V, Hävecker M, Weatherup RS, Arrigo R, Chuang C, Stotz E, Weinberg G, Salmeron M, Schlögl R, Knop‐Gericke A. Photoelektronenspektroskopie an der Graphen‐Flüssigelektrolyt‐Grenzfläche zur Bestimmung der elektronischen Struktur eines elektrochemisch abgeschiedenen Cobalt/Graphen‐Elektrokatalysators. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Juan J. Velasco‐Velez
- Max‐Planck‐Institut für Chemische Energiekonversion, Mülheim 45470 (Deutschland)
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Deutschland)
| | - Verena Pfeifer
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Deutschland)
| | - Michael Hävecker
- Max‐Planck‐Institut für Chemische Energiekonversion, Mülheim 45470 (Deutschland)
- Helmholtz‐Zentrum Berlin für Materialien und Energie, BESSY II, Berlin 12489 (Deutschland)
| | - Robert S. Weatherup
- Engineering Department, University of Cambridge, Cambridge CB3 0FA (Großbritannien)
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley 94720 (USA)
| | - Rosa Arrigo
- Diamond Light Source, Oxfordshire OX11 0QX (Großbritannien)
| | | | - Eugen Stotz
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Deutschland)
| | - Gisela Weinberg
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Deutschland)
| | - Miquel Salmeron
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley 94720 (USA)
| | - Robert Schlögl
- Max‐Planck‐Institut für Chemische Energiekonversion, Mülheim 45470 (Deutschland)
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Deutschland)
| | - Axel Knop‐Gericke
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Deutschland)
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11
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Velasco‐Velez JJ, Pfeifer V, Hävecker M, Weatherup RS, Arrigo R, Chuang C, Stotz E, Weinberg G, Salmeron M, Schlögl R, Knop‐Gericke A. Photoelectron Spectroscopy at the Graphene–Liquid Interface Reveals the Electronic Structure of an Electrodeposited Cobalt/Graphene Electrocatalyst. Angew Chem Int Ed Engl 2015; 54:14554-8. [DOI: 10.1002/anie.201506044] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 07/17/2015] [Indexed: 01/08/2023]
Affiliation(s)
- Juan J. Velasco‐Velez
- Max Planck Institute for Chemical Energy Conversion, Mülheim 45470 (Germany)
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Germany)
| | - Verena Pfeifer
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Germany)
| | - Michael Hävecker
- Max Planck Institute for Chemical Energy Conversion, Mülheim 45470 (Germany)
- Helmholtz‐Center Berlin for Materials and Energy, BESSY II, Berlin 12489 (Germany)
| | - Robert S. Weatherup
- Engineering Department, University of Cambridge, Cambridge CB3 0FA (UK)
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley 94720 (USA)
| | - Rosa Arrigo
- Diamond Light Source, Oxfordshire OX11 0QX (UK)
| | | | - Eugen Stotz
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Germany)
| | - Gisela Weinberg
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Germany)
| | - Miquel Salmeron
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley 94720 (USA)
| | - Robert Schlögl
- Max Planck Institute for Chemical Energy Conversion, Mülheim 45470 (Germany)
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Germany)
| | - Axel Knop‐Gericke
- Fritz‐Haber‐Institut der Max‐Planck‐Gesellschaft, Berlin 14195 (Germany)
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12
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Itkis DM, Velasco-Velez JJ, Knop-Gericke A, Vyalikh A, Avdeev MV, Yashina LV. Probing Operating Electrochemical Interfaces by Photons and Neutrons. ChemElectroChem 2015. [DOI: 10.1002/celc.201500155] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Daniil M. Itkis
- Department of Chemistry; Moscow State University; Leninskie gory 1 Moscow 119991 Russia
| | - Juan Jesus Velasco-Velez
- Department of Heterogeneous Reactions, Max Planck Institute for Chemical Energy Conversion; Stiftstrasse 34-36 Mülheim an der Ruhr 45470 Germany
| | - Axel Knop-Gericke
- Department of Inorganic Chemistry, Fritz-Haber-Institut der Max-Planck-Gesellschaft; Faradayweg 4-6 Berlin 1495 Germany
| | - Anastasia Vyalikh
- Institut für Experimentelle Physik; Technische Universität Bergakademie Freiberg; Leipziger Str. 23, EG02 Freiberg 09599 Germany
| | - Mikhail V. Avdeev
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research; Joliot-Curie str. 6 Dubna, Moscow reg. 141980 Russia
| | - Lada V. Yashina
- Department of Inorganic Chemistry; Moscow State University; Leninskie gory 1 Moscow 119991 Russia
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13
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Papaefthimiou V, Diebold M, Ulhaq-Bouillet C, Doh WH, Blume R, Zafeiratos S, Savinova ER. Potential-Induced Segregation Phenomena in Bimetallic PtAu Nanoparticles: An In Situ Near-Ambient-Pressure Photoelectron Spectroscopy Study. ChemElectroChem 2015. [DOI: 10.1002/celc.201500188] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Morgane Diebold
- ICPEES, UMR 7515 du CNRS-UdS, 25; Rue Becquerel 67087 Strasbourg France
| | - Corinne Ulhaq-Bouillet
- CNRS UMR 7504; Institut de Physique et de Chimie des Matériaux de Strasbourg, 23; Rue du Loess 67034 Strasbourg France
| | - Won Hui Doh
- ICPEES, UMR 7515 du CNRS-UdS, 25; Rue Becquerel 67087 Strasbourg France
| | - Raoul Blume
- Fritz Haber Institut; Faradayweg 4-6 14195 Berlin Germany
- Helmholtz Zentrum Berlin fuer Materialien und Energie GmbH, Grp E GKAT, Catalysis Energy, Div Solar Energy Res, Elektronenspeicherring BESSY; Albert-Einstein-Str. 15 12489 Berlin Germany
| | | | - Elena R. Savinova
- ICPEES, UMR 7515 du CNRS-UdS, 25; Rue Becquerel 67087 Strasbourg France
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14
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15
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Abstract
A heterogeneous catalyst is a functional material that continually creates active sites with its reactants under reaction conditions. These sites change the rates of chemical reactions of the reactants localized on them without changing the thermodynamic equilibrium between the materials.
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Affiliation(s)
- Robert Schlögl
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin (Germany) http://www.fhi-berlin.mpg.de http://www.cec.mpg.de; Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45470 Mülheim a.d. Ruhr (Germany).
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16
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Sanchez Casalongue HG, Ng ML, Kaya S, Friebel D, Ogasawara H, Nilsson A. In Situ Observation of Surface Species on Iridium Oxide Nanoparticles during the Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2014; 53:7169-72. [DOI: 10.1002/anie.201402311] [Citation(s) in RCA: 316] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 03/27/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Hernan G. Sanchez Casalongue
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
| | - May Ling Ng
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, CA 94025 (USA)
| | - Sarp Kaya
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
| | - Daniel Friebel
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
| | - Hirohito Ogasawara
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, CA 94025 (USA)
| | - Anders Nilsson
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
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17
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Sanchez Casalongue HG, Ng ML, Kaya S, Friebel D, Ogasawara H, Nilsson A. In Situ Observation of Surface Species on Iridium Oxide Nanoparticles during the Oxygen Evolution Reaction. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402311] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Hernan G. Sanchez Casalongue
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
| | - May Ling Ng
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, CA 94025 (USA)
| | - Sarp Kaya
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
| | - Daniel Friebel
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
| | - Hirohito Ogasawara
- SLAC National Accelerator Laboratory, 2575 Sand Hill Rd, Menlo Park, CA 94025 (USA)
| | - Anders Nilsson
- Joint Center for Artificial Photosynthesis (JCAP) Energy Innovation Hub, LBNL, 1 Cyclotron Road, MS 976‐JCAP, Berkeley, CA 94720 (USA)
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