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Ou Y, Twight LP, Samanta B, Liu L, Biswas S, Fehrs JL, Sagui NA, Villalobos J, Morales-Santelices J, Antipin D, Risch M, Toroker MC, Boettcher SW. Cooperative Fe sites on transition metal (oxy)hydroxides drive high oxygen evolution activity in base. Nat Commun 2023; 14:7688. [PMID: 38001061 PMCID: PMC10673886 DOI: 10.1038/s41467-023-43305-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Fe-containing transition-metal (oxy)hydroxides are highly active oxygen-evolution reaction (OER) electrocatalysts in alkaline media and ubiquitously form across many materials systems. The complexity and dynamics of the Fe sites within the (oxy)hydroxide have slowed understanding of how and where the Fe-based active sites form-information critical for designing catalysts and electrolytes with higher activity and stability. We show that where/how Fe species in the electrolyte incorporate into host Ni or Co (oxy)hydroxides depends on the electrochemical history and structural properties of the host material. Substantially less Fe is incorporated from Fe-spiked electrolyte into Ni (oxy)hydroxide at anodic potentials, past the nominally Ni2+/3+ redox wave, compared to during potential cycling. The Fe adsorbed under constant anodic potentials leads to impressively high per-Fe OER turn-over frequency (TOFFe) of ~40 s-1 at 350 mV overpotential which we attribute to under-coordinated "surface" Fe. By systematically controlling the concentration of surface Fe, we find TOFFe increases linearly with the Fe concentration. This suggests a changing OER mechanism with increased Fe concentration, consistent with a mechanism involving cooperative Fe sites in FeOx clusters.
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Affiliation(s)
- Yingqing Ou
- Department of Chemistry and Biochemistry and the Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon, 97403, USA
- School of Chemistry and Chemical Engineering, Chongqing University, 400044, Chongqing, China
| | - Liam P Twight
- Department of Chemistry and Biochemistry and the Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon, 97403, USA
| | - Bipasa Samanta
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Lu Liu
- Department of Chemistry and Biochemistry and the Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon, 97403, USA
- School of Materials Science and Engineering, Chongqing University, 400044, Chongqing, China
| | - Santu Biswas
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel
| | - Jessica L Fehrs
- Department of Chemistry and Biochemistry and the Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon, 97403, USA
| | - Nicole A Sagui
- Department of Chemistry and Biochemistry and the Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon, 97403, USA
| | - Javier Villalobos
- Nachwuchsgruppe Gestaltung des Sauerstoffentwicklungsmechanismus, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Joaquín Morales-Santelices
- Nachwuchsgruppe Gestaltung des Sauerstoffentwicklungsmechanismus, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Denis Antipin
- Nachwuchsgruppe Gestaltung des Sauerstoffentwicklungsmechanismus, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Marcel Risch
- Nachwuchsgruppe Gestaltung des Sauerstoffentwicklungsmechanismus, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Maytal Caspary Toroker
- Department of Materials Science and Engineering, Technion-Israel Institute of Technology, Haifa, 3200003, Israel.
- The Nancy and Stephen Grand Technion Energy Program, Haifa, Israel.
| | - Shannon W Boettcher
- Department of Chemistry and Biochemistry and the Oregon Center for Electrochemistry, University of Oregon, Eugene, Oregon, 97403, USA.
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2
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Luan C, Corva M, Hagemann U, Wang H, Heidelmann M, Tschulik K, Li T. Atomic-Scale Insights into Morphological, Structural, and Compositional Evolution of CoOOH during Oxygen Evolution Reaction. ACS Catal 2023. [DOI: 10.1021/acscatal.2c03903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Chenglong Luan
- Institute for Materials, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Manuel Corva
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Ulrich Hagemann
- Interdisciplinary Center for Analytics on the Nanoscale (ICAN) and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Carl-Benz-Straße 199, 47057 Duisburg, Germany
| | - Hongcai Wang
- Institute for Materials, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Markus Heidelmann
- Interdisciplinary Center for Analytics on the Nanoscale (ICAN) and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, Carl-Benz-Straße 199, 47057 Duisburg, Germany
| | - Kristina Tschulik
- Faculty of Chemistry and Biochemistry, Analytical Chemistry II, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
- Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany
| | - Tong Li
- Institute for Materials, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
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3
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Zhang H, Zhang Z, Hu X, Li Y, Bao J, Fang M, Wu Y. CoxMoNyOzHw microrods grown on Ni foam for large-current-density alkaline hydrogen evolution with ultralow overpotential. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2023.123870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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4
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Villalobos J, Morales DM, Antipin D, Schuck G, Golnak R, Xiao J, Risch M. Stabilization of a Mn-Co Oxide During Oxygen Evolution in Alkaline Media. ChemElectroChem 2022; 9:e202200482. [PMID: 35915742 PMCID: PMC9328349 DOI: 10.1002/celc.202200482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/01/2022] [Indexed: 11/08/2022]
Abstract
Improving the stability of electrocatalysts for the oxygen evolution reaction (OER) through materials design has received less attention than improving their catalytic activity. We explored the effects of Mn addition to a cobalt oxide for stabilizing the catalyst by comparing single phase CoOx and (Co0.7Mn0.3)Ox films electrodeposited in alkaline solution. The obtained disordered films were classified as layered oxides using X-ray absorption spectroscopy (XAS). The CoOx films showed a constant decrease in the catalytic activity during cycling, confirmed by oxygen detection, while that of (Co0.7Mn0.3)Ox remained constant within error as measured by electrochemical metrics. These trends were rationalized based on XAS analysis of the metal oxidation states, which were Co2.7+ and Mn3.7+ in the bulk and similar near the surface of (Co0.7Mn0.3)Ox, before and after cycling. Thus, Mn in (Co0.7Mn0.3)Ox successfully stabilized the bulk catalyst material and its surface activity during OER cycling. The development of stabilization approaches is essential to extend the durability of OER catalysts.
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Affiliation(s)
- Javier Villalobos
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Dulce M. Morales
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Denis Antipin
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Götz Schuck
- Abteilung Struktur und Dynamik von EnergiematerialienHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
| | - Ronny Golnak
- Department of Highly Sensitive X-ray SpectroscopyHelmholtz-Zentrum Berlin für Materialien und Energie GmbHAlbert-Einstein-Straße 15Berlin12489Germany
| | - Jie Xiao
- Department of Highly Sensitive X-ray SpectroscopyHelmholtz-Zentrum Berlin für Materialien und Energie GmbHAlbert-Einstein-Straße 15Berlin12489Germany
| | - Marcel Risch
- Nachwuchsgruppe Gestaltung des SauerstoffentwicklungsmechanismusHelmholtz-Zentrum Berlin für Materialien und Energie GmbHHahn-Meitner Platz 1Berlin14109Germany
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5
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3D atomic-scale imaging of mixed Co-Fe spinel oxide nanoparticles during oxygen evolution reaction. Nat Commun 2022; 13:179. [PMID: 35013310 PMCID: PMC8748757 DOI: 10.1038/s41467-021-27788-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 12/08/2021] [Indexed: 11/10/2022] Open
Abstract
The three-dimensional (3D) distribution of individual atoms on the surface of catalyst nanoparticles plays a vital role in their activity and stability. Optimising the performance of electrocatalysts requires atomic-scale information, but it is difficult to obtain. Here, we use atom probe tomography to elucidate the 3D structure of 10 nm sized Co2FeO4 and CoFe2O4 nanoparticles during oxygen evolution reaction (OER). We reveal nanoscale spinodal decomposition in pristine Co2FeO4. The interfaces of Co-rich and Fe-rich nanodomains of Co2FeO4 become trapping sites for hydroxyl groups, contributing to a higher OER activity compared to that of CoFe2O4. However, the activity of Co2FeO4 drops considerably due to concurrent irreversible transformation towards CoIVO2 and pronounced Fe dissolution. In contrast, there is negligible elemental redistribution for CoFe2O4 after OER, except for surface structural transformation towards (FeIII, CoIII)2O3. Overall, our study provides a unique 3D compositional distribution of mixed Co-Fe spinel oxides, which gives atomic-scale insights into active sites and the deactivation of electrocatalysts during OER. 3D imaging of catalyst nanoparticles during reactions is important but challenging. Here, the authors provide atomic-scale details of compositional and structural changes of 10 nm sized Co-Fe spinel nanoparticles during oxygen evolution reactions.
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6
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In-situ structure and catalytic mechanism of NiFe and CoFe layered double hydroxides during oxygen evolution. Nat Commun 2020; 11:2522. [PMID: 32433529 PMCID: PMC7239861 DOI: 10.1038/s41467-020-16237-1] [Citation(s) in RCA: 297] [Impact Index Per Article: 74.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 04/21/2020] [Indexed: 11/08/2022] Open
Abstract
NiFe and CoFe (MFe) layered double hydroxides (LDHs) are among the most active electrocatalysts for the alkaline oxygen evolution reaction (OER). Herein, we combine electrochemical measurements, operando X-ray scattering and absorption spectroscopy, and density functional theory (DFT) calculations to elucidate the catalytically active phase, reaction center and the OER mechanism. We provide the first direct atomic-scale evidence that, under applied anodic potentials, MFe LDHs oxidize from as-prepared α-phases to activated γ-phases. The OER-active γ-phases are characterized by about 8% contraction of the lattice spacing and switching of the intercalated ions. DFT calculations reveal that the OER proceeds via a Mars van Krevelen mechanism. The flexible electronic structure of the surface Fe sites, and their synergy with nearest-neighbor M sites through formation of O-bridged Fe-M reaction centers, stabilize OER intermediates that are unfavorable on pure M-M centers and single Fe sites, fundamentally accounting for the high catalytic activity of MFe LDHs.
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7
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Hamal EK, Toroker MC. The Effect of Fe and Co Additions on the Efficiency of NiOOH Catalyst Under Strain. ChemCatChem 2020. [DOI: 10.1002/cctc.201902289] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ester Korkus Hamal
- Department of Materials Science and Engineering Technion – Israel Institute of Technology Haifa 3200003 Israel
| | - Maytal Caspary Toroker
- Department of Materials Science and Engineering Technion – Israel Institute of Technology Haifa 3200003 Israel
- The Nancy and Stephen Grand Technion Energy Program Technion – Israel Institute of Technology Haifa 3200003 Israel
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8
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9
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Kowalski D, Kiuchi H, Motohashi T, Aoki Y, Habazaki H. Activation of Catalytically Active Edge-Sharing Domains in Ca 2FeCoO 5 for Oxygen Evolution Reaction in Highly Alkaline Media. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28823-28829. [PMID: 31339683 DOI: 10.1021/acsami.9b06854] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Rechargeable zinc-air batteries are considered as one of the possible candidates to replace conventional lithium-ion batteries. One of the requirements for effective battery operation is an oxygen evolution reaction (OER) that needs to be generated in a highly alkaline electrolyte. The A2BB'O5 brownmillerite-type Ca2FeCoO5 electrocatalyst having a 57 Pbcm symmetry exhibits very high electrocatalytic activity toward OER in 4 mol dm-3 KOH. Our studies show that the electrocatalyst undergoes bulk amorphization upon OER and adequately activates catalytically active domains. The synchrotron radiation studies using the extended X-ray absorption fine structure (EXAFS) technique show that the central structural unit found in the polarized Ca2FeCoO5 is a cluster of edge-sharing CoO6 octahedra. The electrochemical data indicate that OER preferentially takes place on the edge-sharing CoO6 octahedra catalytic centers reconstructed in the brownmillerite-type electrocatalyst. The EXAFS second shell peaks at an interatomic distance of 2.8 Å are the fingerprints of the catalytically active domains.
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Affiliation(s)
- Damian Kowalski
- Faculty of Engineering , Hokkaido University , N13W8, Sapporo 060-8628 , Japan
| | - Hisao Kiuchi
- Office of Society-Academia Collaboration for Innovation , Kyoto University , Kyoto 611-0011 , Japan
| | - Teruki Motohashi
- Department of Materials and Life Chemistry , Kanagawa University , Yokohama , Kanagawa 221-8686 , Japan
| | - Yoshitaka Aoki
- Faculty of Engineering , Hokkaido University , N13W8, Sapporo 060-8628 , Japan
| | - Hiroki Habazaki
- Faculty of Engineering , Hokkaido University , N13W8, Sapporo 060-8628 , Japan
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10
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Du J, Li C, Wang X, Shi X, Liang HP. Electrochemical Synthesis of Cation Vacancy-Enriched Ultrathin Bimetallic Oxyhydroxide Nanoplatelets for Enhanced Water Oxidation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25958-25966. [PMID: 31245994 DOI: 10.1021/acsami.9b07164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Metal cation vacancies, a kind of structural defect, are viewed as a promising strategy for regulating the electronic properties to enhance the catalytic activity. However, the effective introduction of cation vacancies into electrocatalysts still remains a challenge. Herein, we present and elucidate a facile "fast reduction and in situ phase transformation" strategy at room temperature to simultaneously introduce abundant metal cation vacancies (cobalt vacancies and iron vacancies) into Co0.5Fe0.5OOH electrocatalysts. The incorporation of the Fe element could tailor the micrometer-sized ultrathin CoOOH platelets into nanometer-sized ultrathin Co0.5Fe0.5OOH platelets, and the tailoring process is accompanied with the generation of numerous cation vacancies. The defect degree of CoOOH could be effectively tuned by the incorporation of Fe, resulting in more active sites and lower energy barrier, and thereby the intrinsic catalytic activity of electrocatalysts was further enhanced. Compared to CoOOH, the optimized nanometer-sized ultrathin Co0.5Fe0.5OOH platelets (Co0.5Fe0.5OOH-NSUPs) require a smaller overpotential of 220 mV at a current density of 20 mA cm-2, lower Tafel slope of 38.2 mV dec-1, and better long-term durability without obvious decay for more than 200 h at a high current density of 40 mA cm-2. The electrochemical performances are equal to or better than that of the reported first-class electrocatalysts. More importantly, this work provides new perspective for designing and fabricating efficient multimetal electrocatalysts in large scale.
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Affiliation(s)
- Jian Du
- QingDao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , QingDao 266101 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chao Li
- QingDao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , QingDao 266101 , China
| | - Xilong Wang
- QingDao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , QingDao 266101 , China
| | - Xiaoyue Shi
- QingDao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , QingDao 266101 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Han-Pu Liang
- QingDao Institute of Bioenergy and Bioprocess Technology , Chinese Academy of Sciences , QingDao 266101 , China
- Center of Materials Science and Optoelectronics Engineering , University of Chinese Academy of Sciences , Beijing 100049 , P. R. China
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11
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Zhao Z, Schlexer Lamoureux P, Kulkarni A, Bajdich M. Trends in Oxygen Electrocatalysis of
3 d
‐Layered (Oxy)(Hydro)Oxides. ChemCatChem 2019. [DOI: 10.1002/cctc.201900846] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zhenghang Zhao
- SUNCAT Center for Interface Sciences and Catalysis SLAC National Accelerator Laboratory 2575 Sand Hill Road, Mail Stop 31 Menlo Park CA 94025 USA
- SUNCAT Center for Interface Sciences and Catalysis Chemical Engineering Stanford University 443 Via Ortega Stanford CA 94305 USA
| | - Philomena Schlexer Lamoureux
- SUNCAT Center for Interface Sciences and Catalysis SLAC National Accelerator Laboratory 2575 Sand Hill Road, Mail Stop 31 Menlo Park CA 94025 USA
- SUNCAT Center for Interface Sciences and Catalysis Chemical Engineering Stanford University 443 Via Ortega Stanford CA 94305 USA
| | - Ambarish Kulkarni
- SUNCAT Center for Interface Sciences and Catalysis Chemical Engineering Stanford University 443 Via Ortega Stanford CA 94305 USA
- Department of Chemical Engineering University of California, Davis 3100 Bainer Hall Davis CA 95616 USA
| | - Michal Bajdich
- SUNCAT Center for Interface Sciences and Catalysis SLAC National Accelerator Laboratory 2575 Sand Hill Road, Mail Stop 31 Menlo Park CA 94025 USA
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12
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Du J, Li C, Wang X, Jones TG, Liang HP. Cobalt oxyhydroxide with highly porous structures as active and stable phase for efficient water oxidation. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.02.083] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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13
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Reikowski F, Maroun F, Pacheco I, Wiegmann T, Allongue P, Stettner J, Magnussen OM. Operando Surface X-ray Diffraction Studies of Structurally Defined Co3O4 and CoOOH Thin Films during Oxygen Evolution. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04823] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Finn Reikowski
- Institute of Experimental and Applied Physics, Kiel University, 24098 Kiel, Germany
| | - Fouad Maroun
- Physique de la Matière Condensée, Ecole Polytechnique, CNRS, 91128 Palaiseau, France
| | - Ivan Pacheco
- Physique de la Matière Condensée, Ecole Polytechnique, CNRS, 91128 Palaiseau, France
| | - Tim Wiegmann
- Institute of Experimental and Applied Physics, Kiel University, 24098 Kiel, Germany
| | - Philippe Allongue
- Physique de la Matière Condensée, Ecole Polytechnique, CNRS, 91128 Palaiseau, France
| | - Jochim Stettner
- Institute of Experimental and Applied Physics, Kiel University, 24098 Kiel, Germany
| | - Olaf M. Magnussen
- Institute of Experimental and Applied Physics, Kiel University, 24098 Kiel, Germany
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14
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Fe-Doping in Double Perovskite PrBaCo2(1-x)Fe2xO6-δ: Insights into Structural and Electronic Effects to Enhance Oxygen Evolution Catalyst Stability. Catalysts 2019. [DOI: 10.3390/catal9030263] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Perovskite oxides have been gaining attention for its capability to be designed as an ideal electrocatalyst for oxygen evolution reaction (OER). Among promising candidates, the layered double perovskite—PrBaCo2O6-δ (PBC)—has been identified as the most active perovskite electrocatalyst for OER in alkaline media. For a single transition metal oxide catalyst, the addition of Fe enhances its electrocatalytic performance towards OER. To understand the role of Fe, herein, Fe is incorporated in PBC in different ratios, which yielded PrBaCo2(1-x)Fe2xCo6-δ (x = 0, 0.2 and 0.5). Fe-doped PBCF’s demonstrate enhanced OER activities and stabilities. Operando X-ray absorption spectroscopy (XAS) revealed that Co is more stable in a lower oxidation state upon Fe incorporation by establishing charge stability. Hence, the degradation of Co is inhibited such that the perovskite structure is prolonged under the OER conditions, which allows it to serve as a platform for the oxy(hydroxide) layer formation. Overall, our findings underline synergetic effects of incorporating Fe into Co-based layered double perovskite in achieving a higher activity and stability during oxygen evolution reaction.
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15
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Kim BJ, Fabbri E, Abbott DF, Cheng X, Clark AH, Nachtegaal M, Borlaf M, Castelli IE, Graule T, Schmidt TJ. Functional Role of Fe-Doping in Co-Based Perovskite Oxide Catalysts for Oxygen Evolution Reaction. J Am Chem Soc 2019; 141:5231-5240. [DOI: 10.1021/jacs.8b12101] [Citation(s) in RCA: 177] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Bae-Jung Kim
- Energy & Environment Division, Paul Scherrer Institut, Forschungstrasse 111, 5232 Villigen PSI, Switzerland
| | - Emiliana Fabbri
- Energy & Environment Division, Paul Scherrer Institut, Forschungstrasse 111, 5232 Villigen PSI, Switzerland
| | - Daniel F. Abbott
- Energy & Environment Division, Paul Scherrer Institut, Forschungstrasse 111, 5232 Villigen PSI, Switzerland
| | - Xi Cheng
- Energy & Environment Division, Paul Scherrer Institut, Forschungstrasse 111, 5232 Villigen PSI, Switzerland
| | - Adam H. Clark
- Energy & Environment Division, Paul Scherrer Institut, Forschungstrasse 111, 5232 Villigen PSI, Switzerland
| | - Maarten Nachtegaal
- Energy & Environment Division, Paul Scherrer Institut, Forschungstrasse 111, 5232 Villigen PSI, Switzerland
| | - Mario Borlaf
- Laboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Testing and Research, 8600 Dübendorf, Switzerland
| | - Ivano E. Castelli
- Department of Energy Conversion and Storage, Technical University of Denmark, Fysikvej 309, DK-2800 Kgs. Lyngby, Denmark
| | - Thomas Graule
- Laboratory for High Performance Ceramics, Empa, Swiss Federal Laboratories for Materials Testing and Research, 8600 Dübendorf, Switzerland
| | - Thomas J. Schmidt
- Energy & Environment Division, Paul Scherrer Institut, Forschungstrasse 111, 5232 Villigen PSI, Switzerland
- Laboratory of Physical Chemistry, ETH Zürich, CH-8093 Zürich, Switzerland
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16
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Hareli C, Caspary Toroker M. Water Oxidation Catalysis for NiOOH by a Metropolis Monte Carlo Algorithm. J Chem Theory Comput 2018; 14:2380-2385. [DOI: 10.1021/acs.jctc.7b01214] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chen Hareli
- Department of Materials Science and Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Maytal Caspary Toroker
- Department of Materials Science and Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel
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17
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Fidelsky V, Toroker MC. The secret behind the success of doping nickel oxyhydroxide with iron. Phys Chem Chem Phys 2018; 19:7491-7497. [PMID: 28197563 DOI: 10.1039/c6cp08590c] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Discovering better catalysts for water splitting is the holy grail of the renewable energy field. One of the most successful water oxidation catalysts is nickel oxyhydroxide (NiOOH), which is chemically active only as a result of doping with Fe. In order to shed light on how Fe improves efficiency, we perform Density Functional Theory +U (DFT+U) calculations of water oxidation reaction intermediates of Fe substitutional doped NiOOH. The results are analyzed while considering the presence of vacancies that we use as probes to test the effect of adding charge to the surface. We find that the smaller electronegativity of the Fe dopant relative to Ni allows the dopant to have several possible oxidation states with less energy penalty. As a result, the presence of vacancies which alters local oxidation states does not affect the low overpotential of Fe-doped NiOOH. We conclude that the secret to the success of doping NiOOH with iron is the ability of iron to easily change oxidation states, which is critical during the chemical reaction of water oxidation.
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Affiliation(s)
- Vicky Fidelsky
- The Nancy and Stephen Grand Technion Energy Program, Technion - Israel Institute of Technology, Haifa 3200003, Israel
| | - Maytal Caspary Toroker
- Department of Materials Science and Engineering, Technion - Israel Institute of Technology, Haifa 3200003, Israel.
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18
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Lassalle-Kaiser B, Gul S, Kern J, Yachandra VK, Yano J. In situ/Operando studies of electrocatalysts using hard X-ray spectroscopy. JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA 2017; 221:18-27. [PMID: 29515287 PMCID: PMC5836735 DOI: 10.1016/j.elspec.2017.05.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
This review focuses on the use of X-ray absorption and emission spectroscopy techniques using hard X-rays to study electrocatalysts under in situ/operando conditions. We describe the importance and the versatility of methods in the study of electrodes in contact with the electrolytes, when being cycled through the catalytic potentials during the progress of the oxygen-evolution, oxygen reduction and hydrogen evolution reactions. The catalytic oxygen evolution reaction is illustrated with examples using Co, Ni and Mn oxides, and Mo and Co sulfides are used as an example for the hydrogen evolution reaction. A bimetallic, bifunctional oxygen evolving and oxygen reducing Ni/Mn oxide is also presented. The various advantages and constraints in the use of these techniques and the future outlook are discussed.
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Affiliation(s)
| | - Sheraz Gul
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Jan Kern
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
- LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Vittal K. Yachandra
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Junko Yano
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
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19
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Fester J, Walton A, Li Z, Lauritsen JV. Gold-supported two-dimensional cobalt oxyhydroxide (CoOOH) and multilayer cobalt oxide islands. Phys Chem Chem Phys 2017; 19:2425-2433. [DOI: 10.1039/c6cp07901f] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis and characterization of layered cobalt oxides for model studies of electrochemical water splitting catalysts.
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Affiliation(s)
- Jakob Fester
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- 8000 Aarhus C
- Denmark
| | - Alex Walton
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- 8000 Aarhus C
- Denmark
| | - Zheshen Li
- ISA
- Aarhus University
- 8000 Aarhus C
- Denmark
| | - Jeppe V. Lauritsen
- Interdisciplinary Nanoscience Center (iNANO)
- Aarhus University
- 8000 Aarhus C
- Denmark
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20
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King HJ, Bonke SA, Chang SLY, Spiccia L, Johannessen B, Hocking RK. Engineering Disorder into Heterogenite-Like Cobalt Oxides by Phosphate Doping: Implications for the Design of Water-Oxidation Catalysts. ChemCatChem 2016. [DOI: 10.1002/cctc.201600983] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hannah J. King
- Discipline of Chemistry; College of Science and Engineering; James Cook University; 1 James Cook Drive 4811 Townsville Australia
| | - Shannon A. Bonke
- School of Chemistry and; ARC Centre of Excellence for Electromaterials Science (ACES); Monash University; Wellington Road 3800 Melbourne Australia
| | - Shery L. Y. Chang
- LeRoy Eyring Center for Solid State Science; Arizona State University; 901 S. Palm Walk AZ 85281 Tempe USA
| | - Leone Spiccia
- School of Chemistry and; ARC Centre of Excellence for Electromaterials Science (ACES); Monash University; Wellington Road 3800 Melbourne Australia
| | | | - Rosalie K. Hocking
- Discipline of Chemistry; College of Science and Engineering; James Cook University; 1 James Cook Drive 4811 Townsville Australia
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21
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Three fundamental questions on one of our best water oxidation catalysts: a critical perspective. Theor Chem Acc 2016. [DOI: 10.1007/s00214-016-1915-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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22
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Burlet C, Goethals H, Vanbrabant Y. Delafossite structure of heterogenite polytypes (HCoO₂) by Raman and infrared micro-spectroscopy. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 159:90-97. [PMID: 26828537 DOI: 10.1016/j.saa.2016.01.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 01/11/2016] [Accepted: 01/23/2016] [Indexed: 06/05/2023]
Abstract
Heterogenite is commonly referred in mineralogy literature as a cobalt oxy-hydroxide CoO(OH). However, detailed analysis of Raman and infrared spectra acquired on particularly well-crystallized natural samples of heterogenite suggests that the mineral can be characterized by a delafossite-type structure, with a general chemical formula ABO2. Indeed, the Raman spectrum of heterogenite, along the one with grimaldiite (HCrO2), lacks visible free OH-group vibrational modes, while the infrared spectrum shows strong hydrogen bond absorption bands. HCoO2 is thus a better formulation of heterogenite that describes more clearly its vibrational behavior and avoids the confusion in literature. Electronic backscattered diffraction (EBSD) is then used to distinguish and map the 2H and 3R heterogenite natural polytypes for the first time. The comparison of EBSD and Raman mappings clearly indicates that the 2H polytype is characterized by an additional peak at 1220 cm(-1). The presence/absence is therefore an efficient tool to distinguish both polytypes.
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Affiliation(s)
- C Burlet
- Royal Belgian Institute for Natural Sciences, Geological Survey of Belgium, Jenner Street, 13, BE-1000 Brussels, Belgium.
| | - H Goethals
- Royal Belgian Institute for Natural Sciences, Geological Survey of Belgium, Jenner Street, 13, BE-1000 Brussels, Belgium
| | - Y Vanbrabant
- Royal Belgian Institute for Natural Sciences, Geological Survey of Belgium, Jenner Street, 13, BE-1000 Brussels, Belgium
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23
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Zaffran J, Toroker MC. Metal-Oxygen Bond Ionicity as an Efficient Descriptor for Doped NiOOH Photocatalytic Activity. Chemphyschem 2016; 17:1630-6. [DOI: 10.1002/cphc.201600049] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 02/02/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Jeremie Zaffran
- Department of Materials Science and Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel), Tel.: +972 4 8294298
| | - Maytal Caspary Toroker
- Department of Materials Science and Engineering; Technion-Israel Institute of Technology; Haifa 32000 Israel), Tel.: +972 4 8294298
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24
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Kwon G, Kokhan O, Han A, Chapman KW, Chupas PJ, Du P, Tiede DM. Oxyanion induced variations in domain structure for amorphous cobalt oxide oxygen evolving catalysts, resolved by X-ray pair distribution function analysis. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2015; 71:713-21. [PMID: 26634728 PMCID: PMC4669998 DOI: 10.1107/s2052520615022180] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 11/19/2015] [Indexed: 05/31/2023]
Abstract
Amorphous thin film oxygen evolving catalysts, OECs, of first-row transition metals show promise to serve as self-assembling photoanode materials in solar-driven, photoelectrochemical `artificial leaf' devices. This report demonstrates the ability to use high-energy X-ray scattering and atomic pair distribution function analysis, PDF, to resolve structure in amorphous metal oxide catalyst films. The analysis is applied here to resolve domain structure differences induced by oxyanion substitution during the electrochemical assembly of amorphous cobalt oxide catalyst films, Co-OEC. PDF patterns for Co-OEC films formed using phosphate, Pi, methylphosphate, MPi, and borate, Bi, electrolyte buffers show that the resulting domains vary in size following the sequence Pi < MPi < Bi. The increases in domain size for CoMPi and CoBi were found to be correlated with increases in the contributions from bilayer and trilayer stacked domains having structures intermediate between those of the LiCoOO and CoO(OH) mineral forms. The lattice structures and offset stacking of adjacent layers in the partially stacked CoMPi and CoBi domains were best matched to those in the LiCoOO layered structure. The results demonstrate the ability of PDF analysis to elucidate features of domain size, structure, defect content and mesoscale organization for amorphous metal oxide catalysts that are not readily accessed by other X-ray techniques. PDF structure analysis is shown to provide a way to characterize domain structures in different forms of amorphous oxide catalysts, and hence provide an opportunity to investigate correlations between domain structure and catalytic activity.
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Affiliation(s)
- Gihan Kwon
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Ave, Lemont, IL 60439, USA
| | - Oleksandr Kokhan
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Ave, Lemont, IL 60439, USA
| | - Ali Han
- Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Rd, Hefei 230026, People’s Republic of China
| | - Karena W. Chapman
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Ave, Lemont, IL 60439, United States
| | - Peter J. Chupas
- X-ray Science Division, Argonne National Laboratory, 9700 South Cass Ave, Lemont, IL 60439, United States
| | - Pingwu Du
- Department of Materials Science and Engineering, University of Science and Technology of China, 96 Jinzhai Rd, Hefei 230026, People’s Republic of China
| | - David M. Tiede
- Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Ave, Lemont, IL 60439, USA
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25
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Nguyen AI, Ziegler MS, Oña-Burgos P, Sturzbecher-Hohne M, Kim W, Bellone DE, Tilley TD. Mechanistic Investigations of Water Oxidation by a Molecular Cobalt Oxide Analogue: Evidence for a Highly Oxidized Intermediate and Exclusive Terminal Oxo Participation. J Am Chem Soc 2015; 137:12865-72. [PMID: 26390993 DOI: 10.1021/jacs.5b08396] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Artificial photosynthesis (AP) promises to replace society's dependence on fossil energy resources via conversion of sunlight into sustainable, carbon-neutral fuels. However, large-scale AP implementation remains impeded by a dearth of cheap, efficient catalysts for the oxygen evolution reaction (OER). Cobalt oxide materials can catalyze the OER and are potentially scalable due to the abundance of cobalt in the Earth's crust; unfortunately, the activity of these materials is insufficient for practical AP implementation. Attempts to improve cobalt oxide's activity have been stymied by limited mechanistic understanding that stems from the inherent difficulty of characterizing structure and reactivity at surfaces of heterogeneous materials. While previous studies on cobalt oxide revealed the intermediacy of the unusual Co(IV) oxidation state, much remains unknown, including whether bridging or terminal oxo ligands form O2 and what the relevant oxidation states are. We have addressed these issues by employing a homogeneous model for cobalt oxide, the [Co(III)4] cubane (Co4O4(OAc)4py4, py = pyridine, OAc = acetate), that can be oxidized to the [Co(IV)Co(III)3] state. Upon addition of 1 equiv of sodium hydroxide, the [Co(III)4] cubane is regenerated with stoichiometric formation of O2. Oxygen isotopic labeling experiments demonstrate that the cubane core remains intact during this stoichiometric OER, implying that terminal oxo ligands are responsible for forming O2. The OER is also examined with stopped-flow UV-visible spectroscopy, and its kinetic behavior is modeled, to surprisingly reveal that O2 formation requires disproportionation of the [Co(IV)Co(III)3] state to generate an even higher oxidation state, formally [Co(V)Co(III)3] or [Co(IV)2Co(III)2]. The mechanistic understanding provided by these results should accelerate the development of OER catalysts leading to increasingly efficient AP systems.
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Affiliation(s)
- Andy I Nguyen
- Department of Chemistry, University of California at Berkeley , Berkeley, California 94720-1460, United States.,Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Micah S Ziegler
- Department of Chemistry, University of California at Berkeley , Berkeley, California 94720-1460, United States
| | - Pascual Oña-Burgos
- Department of Chemistry and Physics, University of Almería , Carretera de Sacramento s/n, 04120 Almería, Spain
| | - Manuel Sturzbecher-Hohne
- Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Wooyul Kim
- Physical Biosciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - Donatela E Bellone
- Department of Chemistry, University of California at Berkeley , Berkeley, California 94720-1460, United States
| | - T Don Tilley
- Department of Chemistry, University of California at Berkeley , Berkeley, California 94720-1460, United States.,Chemical Sciences Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
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26
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Mattioli G, Zaharieva I, Dau H, Guidoni L. Atomistic Texture of Amorphous Manganese Oxides for Electrochemical Water Splitting Revealed by Ab Initio Calculations Combined with X-ray Spectroscopy. J Am Chem Soc 2015. [DOI: 10.1021/jacs.5b05174] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Giuseppe Mattioli
- Istituto di Struttura della Materia del CNR, v. Salaria Km 29,300 - C.P. 10 I-00015 Monterotondo Stazione, Rome, Italy
| | - Ivelina Zaharieva
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Holger Dau
- Fachbereich
Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Leonardo Guidoni
- Dipartimento
di Scienze Fisiche e Chimiche, Università degli Studi de L’Aquila, Via Vetoio 2, Coppito, I-67100 L’Aquila, Italy
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27
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Mattioli G, Giannozzi P, Amore Bonapasta A, Guidoni L. Reaction pathways for oxygen evolution promoted by cobalt catalyst. J Am Chem Soc 2013; 135:15353-63. [PMID: 24044778 DOI: 10.1021/ja401797v] [Citation(s) in RCA: 129] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The in-depth understanding of the molecular mechanisms regulating the water oxidation catalysis is of key relevance for the rationalization and the design of efficient oxygen evolution catalysts based on earth-abundant transition metals. Performing ab initio DFT+U molecular dynamics calculations of cluster models in explicit water solution, we provide insight into the pathways for oxygen evolution of a cobalt-based catalyst (CoCat). The fast motion of protons at the CoCat/water interface and the occurrence of cubane-like Co-oxo units at the catalyst boundaries are the keys to unlock the fast formation of O-O bonds. Along the resulting pathways, we identified the formation of Co(IV)-oxyl species as the driving ingredient for the activation of the catalytic mechanism, followed by their geminal coupling with O atoms coordinated by the same Co. Concurrent nucleophilic attack of water molecules coming directly from the water solution is discouraged by high activation barriers. The achieved results suggest also interesting similarities between the CoCat and the Mn4Ca-oxo oxygen evolving complex of photosystem II.
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Affiliation(s)
- Giuseppe Mattioli
- Istituto di Struttura della Materia del CNR , v. Salaria Km 29,300, C.P. 10 I-00015, Monterotondo Stazione (RM), Italy
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28
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Bajdich M, García-Mota M, Vojvodic A, Nørskov JK, Bell AT. Theoretical Investigation of the Activity of Cobalt Oxides for the Electrochemical Oxidation of Water. J Am Chem Soc 2013; 135:13521-30. [DOI: 10.1021/ja405997s] [Citation(s) in RCA: 904] [Impact Index Per Article: 82.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Michal Bajdich
- The Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Mónica García-Mota
- SUNCAT Center for Interface Science and Catalysis, Department of
Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Aleksandra Vojvodic
- SUNCAT Center for Interface Science and Catalysis, Department of
Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Jens K. Nørskov
- SUNCAT Center for Interface Science and Catalysis, Department of
Chemical Engineering, Stanford University, Stanford, California 94305, United States
| | - Alexis T. Bell
- The Joint Center for Artificial Photosynthesis, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
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29
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Farrow CL, Bediako DK, Surendranath Y, Nocera DG, Billinge SJL. Intermediate-Range Structure of Self-Assembled Cobalt-Based Oxygen-Evolving Catalyst. J Am Chem Soc 2013; 135:6403-6. [DOI: 10.1021/ja401276f] [Citation(s) in RCA: 139] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Christopher L. Farrow
- Department of Applied Physics
and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - D. Kwabena Bediako
- Department of Chemistry and
Chemical Biology, Harvard University, Cambridge,
Massachusetts 02138, United States
| | - Yogesh Surendranath
- Department of Chemistry and
Chemical Biology, Harvard University, Cambridge,
Massachusetts 02138, United States
| | - Daniel G. Nocera
- Department of Chemistry and
Chemical Biology, Harvard University, Cambridge,
Massachusetts 02138, United States
| | - Simon J. L. Billinge
- Department of Applied Physics
and Applied Mathematics, Columbia University, New York, New York 10027, United States
- Condensed Matter Physics and Materials
Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
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30
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Friebel D, Bajdich M, Yeo BS, Louie MW, Miller DJ, Sanchez Casalongue H, Mbuga F, Weng TC, Nordlund D, Sokaras D, Alonso-Mori R, Bell AT, Nilsson A. On the chemical state of Co oxide electrocatalysts during alkaline water splitting. Phys Chem Chem Phys 2013; 15:17460-7. [DOI: 10.1039/c3cp52981a] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Gerken JB, McAlpin JG, Chen JYC, Rigsby ML, Casey WH, Britt RD, Stahl SS. Electrochemical Water Oxidation with Cobalt-Based Electrocatalysts from pH 0–14: The Thermodynamic Basis for Catalyst Structure, Stability, and Activity. J Am Chem Soc 2011; 133:14431-42. [DOI: 10.1021/ja205647m] [Citation(s) in RCA: 611] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- James B. Gerken
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706-1322, United States
| | - J. Gregory McAlpin
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, California 95616-0935, United States
| | - Jamie Y. C. Chen
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706-1322, United States
| | - Matthew L. Rigsby
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706-1322, United States
| | - William H. Casey
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, California 95616-0935, United States
| | - R. David Britt
- Department of Chemistry, University of California, 1 Shields Avenue, Davis, California 95616-0935, United States
| | - Shannon S. Stahl
- Department of Chemistry, University of Wisconsin−Madison, 1101 University Avenue, Madison, Wisconsin 53706-1322, United States
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32
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Kanan MW, Yano J, Surendranath Y, Dincă M, Yachandra VK, Nocera DG. Structure and Valency of a Cobalt−Phosphate Water Oxidation Catalyst Determined by in Situ X-ray Spectroscopy. J Am Chem Soc 2010; 132:13692-701. [DOI: 10.1021/ja1023767] [Citation(s) in RCA: 592] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew W. Kanan
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Junko Yano
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Yogesh Surendranath
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Mircea Dincă
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Vittal K. Yachandra
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
| | - Daniel G. Nocera
- Department of Chemistry, 6-335, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, and Physical Bioscience Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720
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33
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Gao W, Wang Y, Li G, Liao F, You L, Lin J. Synthesis and Structure of an Aluminum Borate Chloride Consisting of 12-Membered Borate Rings and Aluminate Clusters. Inorg Chem 2008; 47:7080-2. [DOI: 10.1021/ic8010053] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Wenliang Gao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Yingxia Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Guobao Li
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Fuhui Liao
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Liping You
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jianhua Lin
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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34
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Casas-Cabanas M, Canales-Vazquez J, Rodríguez-Carvajal J, Palacín MR. Deciphering the Structural Transformations during Nickel Oxyhydroxide Electrode Operation. J Am Chem Soc 2007; 129:5840-2. [PMID: 17432856 DOI: 10.1021/ja068433a] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Montse Casas-Cabanas
- Institut de Ciència de Materials de Barcelona, Campus UAB E-08193 Bellaterra, Catalonia, Spain
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35
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Takahashi Y, Kijima N, Dokko K, Nishizawa M, Uchida I, Akimoto J. Structure and electron density analysis of electrochemically and chemically delithiated LiCoO2 single crystals. J SOLID STATE CHEM 2007. [DOI: 10.1016/j.jssc.2006.10.018] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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36
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37
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Matsuo T, Maekawa T, Inaba A, Yamamuro O, Ohama M, Ichikawa M, Tsuchida T. Isotope-dependent crystalline phases at ambient temperature: Spectroscopic and calorimetric evidence for a deuteration-induced phase transition at 320K in α-DCrO2. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2005.11.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Venkatraman S, Manthiram A. Investigation of the possible incorporation of protons into oxide cathodes during chemical delithiation. J SOLID STATE CHEM 2004. [DOI: 10.1016/j.jssc.2004.08.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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39
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Highly active trimetallic Ru/CeO2/CoO(OH) catalyst for oxidation of alcohols in the presence of molecular oxygen. ACTA ACUST UNITED AC 2004. [DOI: 10.1016/j.molcata.2003.10.036] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Shivakumara C, Hegde MS. Low temperature synthesis of layered NaxCoO2 and KxCoO2 from NaOH/KOH fluxes and their ion exchange properties. J CHEM SCI 2003. [DOI: 10.1007/bf02708236] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Siegel R, Hirschinger J, Carlier D, Ménétrier M, Delmas C. 59Co, 23Na NMR and electric field gradient calculations in the layered cobalt oxides NaCoO2 and HCoO2. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2003; 23:243-262. [PMID: 12787906 DOI: 10.1016/s0926-2040(03)00017-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
59Co and 23Na NMR has been applied to the layered cobalt oxides NaCoO(2) and HCoO(2) at three different magnetic field strengths (4.7, 7.1 and 11.7T). The 59Co and 23Na quadrupole and anisotropic shift tensors have been determined by iterative fitting of the NMR line shapes at the three magnetic field strengths. Due to the large 59Co quadrupole interaction in NaCoO(2), a frequency-swept irradiation procedure was used to alleviate the limited bandwidth of the excitation. While the 59Co and 23Na shift and quadrupole coupling tensors in NaCoO(2) are found to be coincident and axially symmetric in agreement with the crystal symmetry requirements, the fits of the 59Co NMR spectra clearly show the presence of structural disorder in HCoO(2). The 23Na chemical shift anisotropy can be reproduced by shift tensor calculations using a point dipole model and considering that the magnetic susceptibility in NaCoO(2) is due to Van Vleck paramagnetism for Co(3+). Electric field gradient calculations using either the empirical point charge model or the ab initio full potential-linearized augmented plane wave method are compared with the experimental NMR data.
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Affiliation(s)
- Renée Siegel
- Institut de Chimie, FRE 2446 CNRS, Université Louis Pasteur, BP 296, Strasbourg Cedex 67008, France
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Simic N, Ahlberg E. Electrochemical, spectroscopic and structural investigations of the Cd|Cd(II) system in alkaline media. I. Cation effects. J Electroanal Chem (Lausanne) 1998. [DOI: 10.1016/s0022-0728(98)00089-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hydrogen Bonding and Jahn–Teller Distortion in Groutite,α-MnOOH, and Manganite,γ-MnOOH, and Their Relations to the Manganese Dioxides Ramsdellite and Pyrolusite. J SOLID STATE CHEM 1997. [DOI: 10.1006/jssc.1997.7516] [Citation(s) in RCA: 187] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Hage W, Hallbrucker A, Mayer E. Metastable intermediates from glassy solutions. Part 3.—FTIR spectra of α-carbonic acid and its2H and13C isotopic forms, isolated from methanolic solution. ACTA ACUST UNITED AC 1996. [DOI: 10.1039/ft9969203183] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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An in-situ IR spectroscopic study of the anodic oxide film on cobalt in alkaline solutions. J Electroanal Chem (Lausanne) 1992. [DOI: 10.1016/0022-0728(92)80389-l] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Kittaka S, Uchida N, Miyashita I, Wakayama T. Thermal decomposition and pore formation of cobalt oxide hydroxide (HCoO2). ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0166-6622(89)80105-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lawrence MC, Robertson GN. The interpretation of the neutron inelastic scattering and infrared absorption spectra of chromous acid using the double Morse potential model. J Chem Phys 1987. [DOI: 10.1063/1.452980] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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