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Deka N, Jones TE, Falling LJ, Sandoval-Diaz LE, Lunkenbein T, Velasco-Velez JJ, Chan TS, Chuang CH, Knop-Gericke A, Mom RV. On the Operando Structure of Ruthenium Oxides during the Oxygen Evolution Reaction in Acidic Media. ACS Catal 2023; 13:7488-7498. [PMID: 37288096 PMCID: PMC10242682 DOI: 10.1021/acscatal.3c01607] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/04/2023] [Indexed: 06/09/2023]
Abstract
In the search for rational design strategies for oxygen evolution reaction (OER) catalysts, linking the catalyst structure to activity and stability is key. However, highly active catalysts such as IrOx and RuOx undergo structural changes under OER conditions, and hence, structure-activity-stability relationships need to take into account the operando structure of the catalyst. Under the highly anodic conditions of the oxygen evolution reaction (OER), electrocatalysts are often converted into an active form. Here, we studied this activation for amorphous and crystalline ruthenium oxide using X-ray absorption spectroscopy (XAS) and electrochemical scanning electron microscopy (EC-SEM). We tracked the evolution of surface oxygen species in ruthenium oxides while in parallel mapping the oxidation state of the Ru atoms to draw a complete picture of the oxidation events that lead to the OER active structure. Our data show that a large fraction of the OH groups in the oxide are deprotonated under OER conditions, leading to a highly oxidized active material. The oxidation is centered not only on the Ru atoms but also on the oxygen lattice. This oxygen lattice activation is particularly strong for amorphous RuOx. We propose that this property is key for the high activity and low stability observed for amorphous ruthenium oxide.
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Affiliation(s)
- Nipon Deka
- Leiden
Institute of Chemistry, Leiden University, 2300 RA Leiden, The Netherlands
| | - Travis E. Jones
- Theoretical
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Lorenz J. Falling
- Lawrence
Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, California 94720, United States
| | | | - Thomas Lunkenbein
- Fritz
Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | | | - Ting-Shan Chan
- National
Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - Cheng-Hao Chuang
- Department
of Physics, Tamkang University, No. 151, Yingzhuan Rd, New Taipei City 25137, Taiwan
| | - Axel Knop-Gericke
- Fritz
Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Rik V. Mom
- Leiden
Institute of Chemistry, Leiden University, 2300 RA Leiden, The Netherlands
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Mom RV, Falling LJ, Kasian O, Algara-Siller G, Teschner D, Crabtree RH, Knop-Gericke A, Mayrhofer KJJ, Velasco-Vélez JJ, Jones TE. Operando Structure–Activity–Stability Relationship of Iridium Oxides during the Oxygen Evolution Reaction. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05951] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rik V. Mom
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Leiden Institute of Chemistry, Leiden University, PO Box 9502, 2300 RA Leiden, The Netherlands
| | - Lorenz J. Falling
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Olga Kasian
- Helmholtz-Zentrum Berlin GmbH, Helmholtz Institute Erlangen-Nürnberg, 14109 Berlin, Germany
- Max Planck Institute for Iron Research, Max-Planck-Straße 1, 40237 Düsseldorf, Germany
| | - Gerardo Algara-Siller
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Detre Teschner
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45413 Mülheim an der Ruhr, Germany
| | - Robert H. Crabtree
- Department of Chemistry and Energy Sciences Institute, Yale University, New Haven, Connecticut 06520, United States
| | - Axel Knop-Gericke
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
- Max Planck Institute for Chemical Energy Conversion, Stiftstrasse 34-36, 45413 Mülheim an der Ruhr, Germany
| | - Karl J. J. Mayrhofer
- Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Egerlandstraße 3, 91058 Erlangen, Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstraße 3, 91058 Erlangen, Germany
| | | | - Travis E. Jones
- Fritz Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
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Timoshenko J, Roldan Cuenya B. In Situ/ Operando Electrocatalyst Characterization by X-ray Absorption Spectroscopy. Chem Rev 2021; 121:882-961. [PMID: 32986414 PMCID: PMC7844833 DOI: 10.1021/acs.chemrev.0c00396] [Citation(s) in RCA: 189] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Indexed: 12/18/2022]
Abstract
During the last decades, X-ray absorption spectroscopy (XAS) has become an indispensable method for probing the structure and composition of heterogeneous catalysts, revealing the nature of the active sites and establishing links between structural motifs in a catalyst, local electronic structure, and catalytic properties. Here we discuss the fundamental principles of the XAS method and describe the progress in the instrumentation and data analysis approaches undertaken for deciphering X-ray absorption near edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) spectra. Recent usages of XAS in the field of heterogeneous catalysis, with emphasis on examples concerning electrocatalysis, will be presented. The latter is a rapidly developing field with immense industrial applications but also unique challenges in terms of the experimental characterization restrictions and advanced modeling approaches required. This review will highlight the new insight that can be gained with XAS on complex real-world electrocatalysts including their working mechanisms and the dynamic processes taking place in the course of a chemical reaction. More specifically, we will discuss applications of in situ and operando XAS to probe the catalyst's interactions with the environment (support, electrolyte, ligands, adsorbates, reaction products, and intermediates) and its structural, chemical, and electronic transformations as it adapts to the reaction conditions.
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Affiliation(s)
- Janis Timoshenko
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
| | - Beatriz Roldan Cuenya
- Department of Interface Science, Fritz-Haber Institute of the Max-Planck Society, 14195 Berlin, Germany
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Fleischmann S, Mitchell JB, Wang R, Zhan C, Jiang DE, Presser V, Augustyn V. Pseudocapacitance: From Fundamental Understanding to High Power Energy Storage Materials. Chem Rev 2020; 120:6738-6782. [DOI: 10.1021/acs.chemrev.0c00170] [Citation(s) in RCA: 531] [Impact Index Per Article: 132.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Simon Fleischmann
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
| | - James B. Mitchell
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
| | - Ruocun Wang
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
| | - Cheng Zhan
- Quantum Simulation Group, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
| | - De-en Jiang
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Volker Presser
- INM - Leibniz Institute for New Materials, Campus D2 2, 66123 Saarbrücken, Germany
- Saarland University, Campus D2 2, 66123 Saarbrücken, Germany
| | - Veronica Augustyn
- Department of Materials Science & Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
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Chen TH, Yoshida M, Tsunekawa S, Wu JH, Lin KYA, Hu C. Development of BiOI as an effective photocatalyst for oxygen evolution reaction under simulated solar irradiation. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00266f] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
In this study, crystalline BiOI powders were prepared for photocatalytic O2 evolution in the presence of NaIO3 as the electron mediator.
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Affiliation(s)
- Tzu-Hsin Chen
- Department of Chemical Engineering
- R&D Center for Membrane Technology and Luh Hwa Research Center for Circular Economy
- Chung Yuan Christian University
- Taoyuan City
- Taiwan
| | - Masaaki Yoshida
- Applied Chemistry, Graduate School of Sciences and Technology for Innovation
- Yamaguchi University
- Ube
- Japan
- Blue Energy Center for SGE Technology (BEST)
| | - Shun Tsunekawa
- Applied Chemistry, Graduate School of Sciences and Technology for Innovation
- Yamaguchi University
- Ube
- Japan
| | - Jia-Hao Wu
- Department of Chemical Engineering
- R&D Center for Membrane Technology and Luh Hwa Research Center for Circular Economy
- Chung Yuan Christian University
- Taoyuan City
- Taiwan
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture
- National Chung Hsing University
- Taichung City
- Taiwan
| | - Chechia Hu
- Department of Chemical Engineering
- R&D Center for Membrane Technology and Luh Hwa Research Center for Circular Economy
- Chung Yuan Christian University
- Taoyuan City
- Taiwan
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Costentin C, Savéant JM. Energy storage: pseudocapacitance in prospect. Chem Sci 2019; 10:5656-5666. [PMID: 31293750 PMCID: PMC6563784 DOI: 10.1039/c9sc01662g] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 05/08/2019] [Indexed: 11/21/2022] Open
Abstract
This question and its implications are discussed in detail.
The two main types of charge storage devices – batteries and double layer charging capacitors – can be unambiguously distinguished from one another by the shape and scan rate dependence of their cyclic voltammetric current–potential (CV) responses. This is not the case with “pseudocapacitors” and with the notion of “pseudocapacitance”, as originally put forward by Conway et al. After insisting on the necessity of precisely defining “pseudocapacitance” as involving faradaic processes and having, at the same time, a capacitive signature, we discuss the modelling of “pseudocapacitive” responses, revisiting Conway's derivations and analysing critically the other contributions to the subject, leading unmistakably to the conclusion that “pseudocapacitors” are actually true capacitors and that “pseudocapacitance” is a basically incorrect notion. Taking cobalt oxide films as a tutorial example, we describe the way in which a (true) electrical double layer is built upon oxidation of the film in its insulating state up to an ohmic conducting state. The lessons drawn at this occasion are used to re-examine the classical oxides, RuO2, MnO2, TiO2, Nb2O5 and other examples of putative “pseudocapacitive” materials. Addressing the dynamics of charge storage—a key issue in the practice of power of the energy storage device—it is shown that ohmic potential drop in the pores is the governing factor rather than counter-ion diffusion as often asserted, based on incorrect diagnosis by means of scan rate variations in CV studies.
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Affiliation(s)
- Cyrille Costentin
- Université Paris Diderot, Sorbonne Paris Cité , Laboratoire d'Electrochimie Moléculaire , Unité Mixte de Recherche Université - CNRS No. 7591 , Bâtiment Lavoisier, 15 rue Jean de Baïf , 75205 Paris Cedex 13 , France . ;
| | - Jean-Michel Savéant
- Université Paris Diderot, Sorbonne Paris Cité , Laboratoire d'Electrochimie Moléculaire , Unité Mixte de Recherche Université - CNRS No. 7591 , Bâtiment Lavoisier, 15 rue Jean de Baïf , 75205 Paris Cedex 13 , France . ;
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SUGIMOTO W. Conducting Nanosheets and Nanoparticles for Supercapacitors and Fuel Cell Electrocatalysts. ELECTROCHEMISTRY 2018. [DOI: 10.5796/electrochemistry.18-6-e2668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Wataru SUGIMOTO
- Faculty of Textile Science and Technology, Shinshu University
- Center for Energy and Environmental Science, Shinshu University
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8
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Sardar K, Petrucco E, Hiley CI, Sharman JDB, Wells PP, Russell AE, Kashtiban RJ, Sloan J, Walton RI. Water-splitting electrocatalysis in acid conditions using ruthenate-iridate pyrochlores. Angew Chem Int Ed Engl 2014; 53:10960-4. [PMID: 25196322 PMCID: PMC4497602 DOI: 10.1002/anie.201406668] [Citation(s) in RCA: 146] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 08/04/2014] [Indexed: 01/31/2023]
Abstract
The pyrochlore solid solution (Na(0.33)Ce(0.67))2(Ir(1-x)Ru(x))2O7 (0≤x≤1), containing B-site Ru(IV) and Ir(IV) is prepared by hydrothermal synthesis and used as a catalyst layer for electrochemical oxygen evolution from water at pH<7. The materials have atomically mixed Ru and Ir and their nanocrystalline form allows effective fabrication of electrode coatings with improved charge densities over a typical (Ru,Ir)O2 catalyst. An in situ study of the catalyst layers using XANES spectroscopy at the Ir L(III) and Ru K edges shows that both Ru and Ir participate in redox chemistry at oxygen evolution conditions and that Ru is more active than Ir, being oxidized by almost one oxidation state at maximum applied potential, with no evidence for ruthenate or iridate in +6 or higher oxidation states.
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Affiliation(s)
| | - Enrico Petrucco
- Johnson Matthey Technology Centre, Sonning CommonReading RG4 9NH (UK)
| | - Craig I Hiley
- Department of Chemistry, University of WarwickCoventry, CV4 7AL (UK)
| | | | - Peter P Wells
- Research Complex at Harwell, Rutherford Appleton Laboratory, Harwell OxfordDidcot, Oxon, OX11 0FA (UK)
| | | | - Reza J Kashtiban
- Department of Physics, University of WarwickCoventry, CV4 7AL (UK)
| | - Jeremy Sloan
- Department of Physics, University of WarwickCoventry, CV4 7AL (UK)
| | - Richard I Walton
- Department of Chemistry, University of WarwickCoventry, CV4 7AL (UK)
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9
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Sardar K, Petrucco E, Hiley CI, Sharman JDB, Wells PP, Russell AE, Kashtiban RJ, Sloan J, Walton RI. Water-Splitting Electrocatalysis in Acid Conditions Using Ruthenate-Iridate Pyrochlores. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406668] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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MAKINO S, BAN T, SUGIMOTO W. Electrochemical Capacitor Behavior of RuO2 Nanosheets in Buffered Solution and Its Application to Hybrid Capacitor. ELECTROCHEMISTRY 2013. [DOI: 10.5796/electrochemistry.81.795] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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11
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Haynes DJ, Campos A, Berry DA, Shekhawat D, Roy A, Spivey JJ. Catalytic partial oxidation of a diesel surrogate fuel using an Ru-substituted pyrochlore. Catal Today 2010. [DOI: 10.1016/j.cattod.2009.03.025] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Pauporté T, Soldo-Olivier Y, Faure R. In situ X-ray absorption spectroscopy study of lithium insertion into sputtered WO3 thin films. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2003.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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