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Oliver N, Avramov AP, Nürnberg DJ, Dau H, Burnap RL. From manganese oxidation to water oxidation: assembly and evolution of the water-splitting complex in photosystem II. PHOTOSYNTHESIS RESEARCH 2022; 152:107-133. [PMID: 35397059 DOI: 10.1007/s11120-022-00912-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/03/2022] [Indexed: 06/14/2023]
Abstract
The manganese cluster of photosystem II has been the focus of intense research aiming to understand the mechanism of H2O-oxidation. Great effort has also been applied to investigating its oxidative photoassembly process, termed photoactivation that involves the light-driven incorporation of metal ions into the active Mn4CaO5 cluster. The knowledge gained on these topics has fundamental scientific significance, but may also provide the blueprints for the development of biomimetic devices capable of splitting water for solar energy applications. Accordingly, synthetic chemical approaches inspired by the native Mn cluster are actively being explored, for which the native catalyst is a useful benchmark. For both the natural and artificial catalysts, the assembly process of incorporating Mn ions into catalytically active Mn oxide complexes is an oxidative process. In both cases this process appears to share certain chemical features, such as producing an optimal fraction of open coordination sites on the metals to facilitate the binding of substrate water, as well as the involvement of alkali metals (e.g., Ca2+) to facilitate assembly and activate water-splitting catalysis. This review discusses the structure and formation of the metal cluster of the PSII H2O-oxidizing complex in the context of what is known about the formation and chemical properties of different Mn oxides. Additionally, the evolutionary origin of the Mn4CaO5 is considered in light of hypotheses that soluble Mn2+ was an ancient source of reductant for some early photosynthetic reaction centers ('photomanganotrophy'), and recent evidence that PSII can form Mn oxides with structural resemblance to the geologically abundant birnessite class of minerals. A new functional role for Ca2+ to facilitate sustained Mn2+ oxidation during photomanganotrophy is proposed, which may explain proposed physiological intermediates during the likely evolutionary transition from anoxygenic to oxygenic photosynthesis.
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Affiliation(s)
- Nicholas Oliver
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Anton P Avramov
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, 74078, USA
| | - Dennis J Nürnberg
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Robert L Burnap
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, 74078, USA.
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2
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Yang H, Hausmann JN, Hlukhyy V, Braun T, Laun K, Zebger I, Driess M, Menezes PW. An Intermetallic CaFe6Ge6 Approach to Unprecedented Ca‐Fe‐O Electrocatalyst for Efficient Alkaline Oxygen Evolution Reaction. ChemCatChem 2022. [DOI: 10.1002/cctc.202200293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | - Viktor Hlukhyy
- Technical University of Munich: Technische Universitat Munchen Chemistry Lichtenbergstraße 4Garching 85747 Garching GERMANY
| | - Thomas Braun
- Technical University of Munich: Technische Universitat Munchen Chemistry GERMANY
| | | | - Ingo Zebger
- Technical University of Berlin: Technische Universitat Berlin Chemistry GERMANY
| | - Matthias Driess
- Technische Universitat Graz Chemistry Strasse des 17. Juni 135, Sekr. C2Technische Universität BerlinBerlin D-10623 Berlin GERMANY
| | - Prashanth W. Menezes
- Technische Universitat Berlin Chemistry Strasse des 17. Juni 135, Sekr. C2 10623 Berlin GERMANY
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3
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Heidari S, Balaghi SE, Sologubenko AS, Patzke GR. Economic Manganese-Oxide-Based Anodes for Efficient Water Oxidation: Rapid Synthesis and In Situ Transmission Electron Microscopy Monitoring. ACS Catal 2021. [DOI: 10.1021/acscatal.0c03388] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sima Heidari
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - S. Esmael Balaghi
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Alla S. Sologubenko
- Scientific Center for Optical and Electron Microscopy (ScopeM), ETH Zurich, Otto-Stern-Weg 3, CH-8093 Zurich, Switzerland
| | - Greta R. Patzke
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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4
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Nakamura S, Capone M, Mattioli G, Guidoni L. Early-stage formation of (hydr)oxo bridges in transition-metal catalysts for photosynthetic processes. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02227f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Ab initio simulations have been used to assess reaction pathways for the formation of M–(hydr)oxo–M (M = Co, Mn, Ni) bridges from M(ii) aqueous solutions, as early-stage building blocks of transition-metal catalysts for oxygen evolution.
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Affiliation(s)
- Shin Nakamura
- Department of Biochemical Sciences “A. Rossi Fanelli”
- Sapienza University of Rome
- Rome
- Italy
| | - Matteo Capone
- Department of physical and chemical science
- Università dell'Aquila
- L'Aquila
- Italy
| | - Giuseppe Mattioli
- Istituto di Struttura della Materia del CNR (ISM-CNR)
- I-00015 Monterotondo Scalo
- Italy
| | - Leonardo Guidoni
- Department of physical and chemical science
- Università dell'Aquila
- L'Aquila
- Italy
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5
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Light-driven formation of manganese oxide by today's photosystem II supports evolutionarily ancient manganese-oxidizing photosynthesis. Nat Commun 2020; 11:6110. [PMID: 33257675 PMCID: PMC7705724 DOI: 10.1038/s41467-020-19852-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 11/02/2020] [Indexed: 11/10/2022] Open
Abstract
Water oxidation and concomitant dioxygen formation by the manganese-calcium cluster of oxygenic photosynthesis has shaped the biosphere, atmosphere, and geosphere. It has been hypothesized that at an early stage of evolution, before photosynthetic water oxidation became prominent, light-driven formation of manganese oxides from dissolved Mn(2+) ions may have played a key role in bioenergetics and possibly facilitated early geological manganese deposits. Here we report the biochemical evidence for the ability of photosystems to form extended manganese oxide particles. The photochemical redox processes in spinach photosystem-II particles devoid of the manganese-calcium cluster are tracked by visible-light and X-ray spectroscopy. Oxidation of dissolved manganese ions results in high-valent Mn(III,IV)-oxide nanoparticles of the birnessite type bound to photosystem II, with 50-100 manganese ions per photosystem. Having shown that even today’s photosystem II can form birnessite-type oxide particles efficiently, we propose an evolutionary scenario, which involves manganese-oxide production by ancestral photosystems, later followed by down-sizing of protein-bound manganese-oxide nanoparticles to finally yield today’s catalyst of photosynthetic water oxidation. Photosynthetic formation of manganese (Mn) oxides from dissolved Mn ions was proposed to occur in ancestral photosystems before oxygenic photosynthesis evolved. Here, the authors provide evidence for this hypothesis by showing that photosystem II devoid of the Mn cluster oxidises Mn ions leading to formation of Mn-oxide nanoparticles.
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6
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Connor P, Schuch J, Kaiser B, Jaegermann W. The Determination of Electrochemical Active Surface Area and Specific Capacity Revisited for the System MnOx as an Oxygen Evolution Catalyst. ACTA ACUST UNITED AC 2020. [DOI: 10.1515/zpch-2019-1514] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In the last decades several different catalysts for the electrochemical water splitting reaction have been designed and tested. In so-called benchmark papers they are compared with respect to their efficiency and activity. In order to relate the different catalyst to each other the definition of well-defined procedures is required. Two different methods are mainly used: Either the normalization with respect to the geometric surface area or to the catalyst loading. Most often only one of these values is available for a sample and the other one cannot be estimated easily. One approach in electrocatalysis is to determine the Helmholtz double layer capacitance (DLC) and deduce the electrochemical active surface area (ECSA). The DLC can be obtained from two different methods, either using differential capacitance measurement (DCM) or impedance spectroscopy (EIS). The second value needed for the calculation of the ECSA is the specific capacitance, which is the capacitance for a perfectly flat surface of given catalyst material. Here, we present the determination of the different capacitance values using manganese oxide as the exemplary model for the oxygen evolution reaction (OER). We determine the capacitance by DCM and EIS to calculate the ECSA using literature values for the specific capacitance. The obtained values are comparable from the two methods, but are much larger than the surface areas obtained by atomic force microscopy. Therefore, we consider the possibility of using the measured AFM area together with the Helmholtz capacitance to determine the specific capacitances for this material class. The comparison of these results with literature values illustrates the actual limits of the ECSA method, which will be discussed in this paper.
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Affiliation(s)
- Paula Connor
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
| | - Jona Schuch
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
| | - Bernhard Kaiser
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
| | - Wolfram Jaegermann
- Materialwissenschaft, Oberflächenforschung , Otto-Berndt-Straße 3 , Darmstadt, Hessen 64287 , Germany
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7
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Melder J, Bogdanoff P, Zaharieva I, Fiechter S, Dau H, Kurz P. Water-Oxidation Electrocatalysis by Manganese Oxides: Syntheses, Electrode Preparations, Electrolytes and Two Fundamental Questions. Z PHYS CHEM 2020. [DOI: 10.1515/zpch-2019-1491] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Abstract
The efficient catalysis of the four-electron oxidation of water to molecular oxygen is a central challenge for the development of devices for the production of solar fuels. This is equally true for artificial leaf-type structures and electrolyzer systems. Inspired by the oxygen evolving complex of Photosystem II, the biological catalyst for this reaction, scientists around the globe have investigated the possibility to use manganese oxides (“MnOx”) for this task. This perspective article will look at selected examples from the last about 10 years of research in this field. At first, three aspects are addressed in detail which have emerged as crucial for the development of efficient electrocatalysts for the anodic oxygen evolution reaction (OER): (1) the structure and composition of the “MnOx” is of central importance for catalytic performance and it seems that amorphous, MnIII/IV oxides with layered or tunnelled structures are especially good choices; (2) the type of support material (e.g. conducting oxides or nanostructured carbon) as well as the methods used to immobilize the MnOx catalysts on them greatly influence OER overpotentials, current densities and long-term stabilities of the electrodes and (3) when operating MnOx-based water-oxidizing anodes in electrolyzers, it has often been observed that the electrocatalytic performance is also largely dependent on the electrolyte’s composition and pH and that a number of equilibria accompany the catalytic process, resulting in “adaptive changes” of the MnOx material over time. Overall, it thus has become clear over the last years that efficient and stable water-oxidation electrolysis by manganese oxides can only be achieved if at least four parameters are optimized in combination: the oxide catalyst itself, the immobilization method, the catalyst support and last but not least the composition of the electrolyte. Furthermore, these parameters are not only important for the electrode optimization process alone but must also be considered if different electrode types are to be compared with each other or with literature values from literature. Because, as without their consideration it is almost impossible to draw the right scientific conclusions. On the other hand, it currently seems unlikely that even carefully optimized MnOx anodes will ever reach the superb OER rates observed for iridium, ruthenium or nickel-iron oxide anodes in acidic or alkaline solutions, respectively. So at the end of the article, two fundamental questions will be addressed: (1) are there technical applications where MnOx materials could actually be the first choice as OER electrocatalysts? and (2) do the results from the last decade of intensive research in this field help to solve a puzzle already formulated in 2008: “Why did nature choose manganese to make oxygen?”.
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Affiliation(s)
- Jens Melder
- Institut für Anorganische und Analytische Chemie und Freiburger Materialforschungszentrum (FMF) , Albert-Ludwigs-Universität Freiburg , Albertstraße 21, 79104 Freiburg , Germany
| | - Peter Bogdanoff
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institute for Solar Fuels , 14109 Berlin , Germany
| | - Ivelina Zaharieva
- Freie Universität Berlin, Fachbereich Physik , Arnimallee 14, 14195 Berlin , Germany
| | - Sebastian Fiechter
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institute for Solar Fuels , 14109 Berlin , Germany
| | - Holger Dau
- Freie Universität Berlin, Fachbereich Physik , Arnimallee 14, 14195 Berlin , Germany
| | - Philipp Kurz
- Institut für Anorganische und Analytische Chemie und Freiburger Materialforschungszentrum (FMF) , Albert-Ludwigs-Universität Freiburg , Albertstraße 21, 79104 Freiburg , Germany
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8
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Pasquini C, Zaharieva I, González-Flores D, Chernev P, Mohammadi MR, Guidoni L, Smith RDL, Dau H. H/D Isotope Effects Reveal Factors Controlling Catalytic Activity in Co-Based Oxides for Water Oxidation. J Am Chem Soc 2019; 141:2938-2948. [PMID: 30650965 DOI: 10.1021/jacs.8b10002] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Understanding the mechanism for electrochemical water oxidation is important for the development of more efficient catalysts for artificial photosynthesis. A basic step is the proton-coupled electron transfer, which enables accumulation of oxidizing equivalents without buildup of a charge. We find that substituting deuterium for hydrogen resulted in an 87% decrease in the catalytic activity for water oxidation on Co-based amorphous-oxide catalysts at neutral pH, while 16O-to-18O substitution lead to a 10% decrease. In situ visible and quasi-in situ X-ray absorption spectroscopy reveal that the hydrogen-to-deuterium isotopic substitution induces an equilibrium isotope effect that shifts the oxidation potentials positively by approximately 60 mV for the proton coupled CoII/III and CoIII/IV electron transfer processes. Time-resolved spectroelectrochemical measurements indicate the absence of a kinetic isotope effect, implying that the precatalytic proton-coupled electron transfer happens through a stepwise mechanism in which electron transfer is rate-determining. An observed correlation between Co oxidation states and catalytic current for both isotopic conditions indicates that the applied potential has no direct effect on the catalytic rate, which instead depends exponentially on the average Co oxidation state. These combined results provide evidence that neither proton nor electron transfer is involved in the catalytic rate-determining step. We propose a mechanism with an active species composed by two adjacent CoIV atoms and a rate-determining step that involves oxygen-oxygen bond formation and compare it with models proposed in the literature.
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Affiliation(s)
- Chiara Pasquini
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany
| | - Ivelina Zaharieva
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany
| | - Diego González-Flores
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany
| | - Petko Chernev
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany
| | - Mohammad Reza Mohammadi
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany.,Department of Physics , University of Sistan and Baluchestan , Zahedan , 98167-45845 , Iran
| | - Leonardo Guidoni
- Dipartimento di Scienze Fisiche e Chimiche , Università degli studi dell'Aquila,Via Vetoio (Coppito) , 67100 L'Aquila , Italy
| | - Rodney D L Smith
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany.,Department of Chemistry , University of Waterloo , 200 University Avenue W , N2L 3G1 Waterloo , ON , Canada
| | - Holger Dau
- Department of Physics , Freie Universität Berlin , Arnimallee 14 , 14195 Berlin , Germany
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9
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Walter C, Menezes PW, Loos S, Dau H, Driess M. Facile Formation of Nanostructured Manganese Oxide Films as High-Performance Catalysts for the Oxygen Evolution Reaction. CHEMSUSCHEM 2018; 11:2554-2561. [PMID: 29888534 DOI: 10.1002/cssc.201800493] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/08/2018] [Indexed: 06/08/2023]
Abstract
The development of inexpensive, earth abundant, and bioinspired oxygen evolution electrocatalysts that are easily accessible and scalable is a principal requirement with regard to the feasibility of water splitting for large-scale chemical energy storage. A unique, versatile, and scalable approach has been developed to fabricate manganese oxide films from single layers to multilayers with a controlled thickness and high reproducibility. The produced MnOx films are composed of small nanostructures that are assembled closely in the form of porous sponge-like layers. The films were investigated for the electrochemical oxygen evolution reaction in alkaline media and demonstrate a remarkable activity as well as a superior stability of over 60 h. To elucidate the catalytically active species, as well as the striking structural characteristics, the films were further examined in depth by using SEM, TEM, and X-ray photoelectron spectroscopy, as well as quasi in situ extended X-ray absorption fine structure and X-ray absorption near edge structure analysis. The MnOx catalyst films excel because of a favorably high fraction of Mn3+ ions that are retained even after operation at oxidizing potentials. Upon exposure to oxidizing potentials in strongly alkaline aqueous electrolyte, the catalyst material maintains its structural integrity at the nanostructural, morphological, and atomic level.
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Affiliation(s)
- Carsten Walter
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Stefan Loos
- Fachbereich Physik, Freie Universität, Arnimallee 14, 14195, Berlin, Germany), E-mail: mailto
| | - Holger Dau
- Fachbereich Physik, Freie Universität, Arnimallee 14, 14195, Berlin, Germany), E-mail: mailto
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Strasse des 17. Juni 135, Sekr. C2, 10623, Berlin, Germany
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10
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Shaker MN, Bonke SA, Xiao J, Khan MA, Hocking RK, Tesch MF. Insight into pH-Dependent Formation of Manganese Oxide Phases in Electrodeposited Catalytic Films Probed by Soft X-Ray Absorption Spectroscopy. Chempluschem 2018; 83:721-727. [DOI: 10.1002/cplu.201800055] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 06/06/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Maryam N. Shaker
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH; Institut Solare Brennstoffe; Hahn-Meitner Platz 1 14109 Berlin Germany
- Freie Universität Berlin; Fachbereich Physik; Arnimallee 14 14159 Berlin Germany
| | - Shannon A. Bonke
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH; Institut Nanospektroskopie; Kekuléstrasse 5 12489 Berlin Germany
| | - Jie Xiao
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH; Institut Methoden der Materialentwicklung; Albert-Einstein-Strasse 15 12489 Berlin Germany
| | - Munirah A. Khan
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH; Institut Methoden der Materialentwicklung; Albert-Einstein-Strasse 15 12489 Berlin Germany
| | - Rosalie K. Hocking
- Department of Chemistry and Biotechnology; Swinburne University of Technology; Hawthorn Melbourne VIC 3122 Australia
| | - Marc F. Tesch
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH; Institut Methoden der Materialentwicklung; Albert-Einstein-Strasse 15 12489 Berlin Germany
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11
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Chiu HC, Huang WH, Hsu LC, Lin YG, Lai YH, Lin CY. Calcium containing iron oxide as an efficient and robust catalyst in (photo-)electrocatalytic water oxidation at neutral pH. SUSTAINABLE ENERGY & FUELS 2018; 2:271-279. [DOI: 10.1039/c7se00447h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2025]
Abstract
The amorphous nature and in situ formation of iron phosphate render CaFeOx with high activity and stability for the OER at neutral pH.
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Affiliation(s)
- Hung-Chun Chiu
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan City 70101
- Taiwan
| | - Wei-Hsiang Huang
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan City 70101
- Taiwan
| | - Liang-Ching Hsu
- National Synchrotron Radiation Research Center
- Hsinchu 30076
- Taiwan
| | - Yan-Gu Lin
- National Synchrotron Radiation Research Center
- Hsinchu 30076
- Taiwan
| | - Yi-Hsuan Lai
- Department of Materials and Optoelectronic Science
- National Sun Yat-Sen University
- Kaohsiung City 80424
- Taiwan
| | - Chia-Yu Lin
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan City 70101
- Taiwan
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12
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Morales DV, Astudillo CN, Lattach Y, Urbano BF, Pereira E, Rivas BL, Arnaud J, Putaux JL, Sirach S, Cobo S, Moutet JC, Collomb MN, Fortage J. Nickel oxide–polypyrrole nanocomposite electrode materials for electrocatalytic water oxidation. Catal Sci Technol 2018. [DOI: 10.1039/c7cy01949a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Electrochemically prepared nickel oxide nanoparticles entrapped into a polymer matrix as efficient material for O2 evolution.
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Affiliation(s)
| | | | | | | | | | | | - Josiane Arnaud
- INSERM
- F-38000 Grenoble
- France
- CHU Grenoble Alpes
- Institut de biologie et Pathologie
| | | | - Selim Sirach
- Univ. Grenoble Alpes
- CNRS
- DCM
- F-38000 Grenoble
- France
| | - Saioa Cobo
- Univ. Grenoble Alpes
- CNRS
- DCM
- F-38000 Grenoble
- France
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13
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Wu Y, Wang L, Chen M, Jin Z, Zhang W, Cao R. Preparation of Cobalt-Based Electrodes by Physical Vapor Deposition on Various Nonconductive Substrates for Electrocatalytic Water Oxidation. CHEMSUSCHEM 2017; 10:4699-4703. [PMID: 28940995 DOI: 10.1002/cssc.201701576] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 09/20/2017] [Indexed: 06/07/2023]
Abstract
Artificial photosynthesis requires efficient anodic electrode materials for water oxidation. Cobalt metal thin films are prepared through facile physical vapor deposition (PVD) on various nonconductive substrates, including regular and quartz glass, mica sheet, polyimide, and polyethylene terephthalate (PET). Subsequent surface electrochemical modification by cyclic voltammetry (CV) renders these films active for electrocatalytic water oxidation, reaching a current density of 10 mA cm-2 at a low overpotential of 330 mV in 1.0 m KOH solution. These electrodes are robust with unchanged activity throughout prolonged chronopotentiometry measurements. This work is thus significant to show that the combination of PVD and CV is very valuable and convenient to fabricate active electrodes on various nonconductive substrates, particularly with flexible polyimide and PET substrates. This efficient, safe and convenient method can potentially be expanded to many other electrochemical applications.
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Affiliation(s)
- Yizhen Wu
- Department of Chemistry, Renmin University of China, Beijing, 100872, P. R. China
| | - Le Wang
- Department of Physics, Renmin University of China, Beijing, 100872, P. R. China
| | - Mingxing Chen
- Department of Chemistry, Renmin University of China, Beijing, 100872, P. R. China
| | - Zhaoxia Jin
- Department of Chemistry, Renmin University of China, Beijing, 100872, P. R. China
| | - Wei Zhang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
| | - Rui Cao
- Department of Chemistry, Renmin University of China, Beijing, 100872, P. R. China
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P. R. China
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14
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Melder J, Kwong WL, Shevela D, Messinger J, Kurz P. Electrocatalytic Water Oxidation by MnO x /C: In Situ Catalyst Formation, Carbon Substrate Variations, and Direct O 2 /CO 2 Monitoring by Membrane-Inlet Mass Spectrometry. CHEMSUSCHEM 2017; 10:4491-4502. [PMID: 28869720 DOI: 10.1002/cssc.201701383] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 08/14/2017] [Indexed: 06/07/2023]
Abstract
Layers of amorphous manganese oxides were directly formed on the surfaces of different carbon materials by exposing the carbon to aqueous solutions of permanganate (MnO4- ) followed by sintering at 100-400 °C. During electrochemical measurements in neutral aqueous buffer, nearly all of the MnOx /C electrodes show significant oxidation currents at potentials relevant for the oxygen evolution reaction (OER). However, by combining electrolysis with product detection by using mass spectrometry, it was found that these currents were only strictly linked to water oxidation if MnOx was deposited on graphitic carbon materials (faradaic O2 yields >90 %). On the contrary, supports containing sp3 -C were found to be unsuitable as the OER is accompanied by carbon corrosion to CO2 . Thus, choosing the "right" carbon material is crucial for the preparation of stable and efficient MnOx /C anodes for water oxidation catalysis. For MnOx on graphitic substrates, current densities of >1 mA cm-2 at η=540 mV could be maintained for at least 16 h of continuous operation at pH 7 (very good values for electrodes containing only abundant elements such as C, O, and Mn) and post-operando measurements proved the integrity of both the catalyst coating and the underlying carbon at OER conditions.
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Affiliation(s)
- Jens Melder
- Institut für Anorganische und Analytische Chemie, Freiburger Materialforschungszentrum (FMF), Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg, Germany
| | - Wai Ling Kwong
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala Universitet, Lägerhyddsvägen 1, 75120, Uppsala, Sweden
- Department of Chemistry, Kemiskt Biologiskt Centrum (KBC), Umeå Universitet, Linnaeusväg 6, 90187, Umeå, Sweden
| | - Dmitriy Shevela
- Department of Chemistry, Kemiskt Biologiskt Centrum (KBC), Umeå Universitet, Linnaeusväg 6, 90187, Umeå, Sweden
| | - Johannes Messinger
- Molecular Biomimetics, Department of Chemistry, Ångström Laboratory, Uppsala Universitet, Lägerhyddsvägen 1, 75120, Uppsala, Sweden
- Department of Chemistry, Kemiskt Biologiskt Centrum (KBC), Umeå Universitet, Linnaeusväg 6, 90187, Umeå, Sweden
| | - Philipp Kurz
- Institut für Anorganische und Analytische Chemie, Freiburger Materialforschungszentrum (FMF), Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104, Freiburg, Germany
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15
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Schuth N, Liang Z, Schönborn M, Kussicke A, Assunção R, Zaharieva I, Zilliges Y, Dau H. Inhibitory and Non-Inhibitory NH 3 Binding at the Water-Oxidizing Manganese Complex of Photosystem II Suggests Possible Sites and a Rearrangement Mode of Substrate Water Molecules. Biochemistry 2017; 56:6240-6256. [PMID: 29086556 DOI: 10.1021/acs.biochem.7b00743] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The identity and rearrangements of substrate water molecules in photosystem II (PSII) water oxidation are of great mechanistic interest and addressed herein by comprehensive analysis of NH4+/NH3 binding. Time-resolved detection of O2 formation and recombination fluorescence as well as Fourier transform infrared (FTIR) difference spectroscopy on plant PSII membrane particles reveals the following. (1) Partial inhibition in NH4Cl buffer occurs with a pH-independent binding constant of ∼25 mM, which does not result from decelerated O2 formation, but from complete blockage of a major PSII fraction (∼60%) after reaching the Mn(IV)4 (S3) state. (2) The non-inhibited PSII fraction advances through the reaction cycle, but modified nuclear rearrangements are suggested by FTIR difference spectroscopy. (3) Partial inhibition can be explained by anticooperative (mutually exclusive) NH3 binding to one inhibitory and one non-inhibitory site; these two sites may correspond to two water molecules terminally bound to the "dangling" Mn ion. (4) Unexpectedly strong modifications of the FTIR difference spectra suggest that in the non-inhibited PSII, ammonia binding obliterates the need for some of the nuclear rearrangements occurring in the S2-S3 transition as well as their reversal in the O2 formation transition, in line with the carousel mechanism [Askerka, M., et al. (2015) Biochemistry 54, 5783]. (5) We observe the same partial inhibition of PSII by NH4Cl also for thylakoid membranes prepared from mesophilic and thermophilic cyanobacteria, suggesting that the results described above are valid for plant and cyanobacterial PSII.
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Affiliation(s)
- Nils Schuth
- Freie Universität Berlin , Department of Physics, 14195 Berlin, Germany
| | - Zhiyong Liang
- Freie Universität Berlin , Department of Physics, 14195 Berlin, Germany
| | | | - André Kussicke
- Freie Universität Berlin , Department of Physics, 14195 Berlin, Germany
| | - Ricardo Assunção
- Freie Universität Berlin , Department of Physics, 14195 Berlin, Germany
| | - Ivelina Zaharieva
- Freie Universität Berlin , Department of Physics, 14195 Berlin, Germany
| | - Yvonne Zilliges
- Freie Universität Berlin , Department of Physics, 14195 Berlin, Germany
| | - Holger Dau
- Freie Universität Berlin , Department of Physics, 14195 Berlin, Germany
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16
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Liu Y, Bai Y, Han Y, Yu Z, Zhang S, Wang G, Wei J, Wu Q, Sun K. Self-Supported Hierarchical FeCoNi-LTH/NiCo 2O 4/CC Electrodes with Enhanced Bifunctional Performance for Efficient Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2017; 9:36917-36926. [PMID: 28985046 DOI: 10.1021/acsami.7b12474] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The development of advanced earth-abundant electrocatalysts for hydrogen production is highly desirable. In this paper, we report the design and synthesis of a novel and highly efficient electrode of NiCo2O4 nanoneedles decorated with FeCoNi layered ternary hydroxides supported on carbon cloth (FeCoNi-LTH/NiCo2O4/CC) by a facile and efficient two-step approach. It exhibits superior bifunctional catalytic activities for the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) in alkaline media, due to the special structure and strong synergies. The FeCoNi-LTH/NiCo2O4/CC obtains an onset overpotential of 240 mV and an overpotential of 302 mV at the current density of 50 mA cm-2 for OER, which is superior to RuO2. It also efficiently catalyzes HER with onset overpotential of 96 mV and overpotential of 151 mV to achieve a current density of 20 mA cm-2. Serving as both cathode and anode in a two-electrode water splitting system, FeCoNi-LTH/NiCo2O4/CC only requires an overpotential of 1.65 V at current density of 50 mA cm-2. The cell exhibits outstanding stability as well, indicating that FeCoNi-LTH/NiCo2O4/CC is a befitting material to be utilized as effective bifunctional catalysts for overall water splitting.
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Affiliation(s)
- Yuxuan Liu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin 150001, P. R. China
- Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Yu Bai
- Advanced Research Institute for Multidisciplinary Science, Beijing Institute of Technology , Beijing 100081, P. R. China
| | - Yu Han
- Ultra-precision Optoelectronic Instrument Engineering Center, Harbin Institute of Technology , Harbin 150080, P. R. China
| | - Zhou Yu
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin 150001, P. R. China
- Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Shimin Zhang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology , Harbin 150001, P. R. China
- Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
| | - Guohua Wang
- State Key Laboratory of Advanced Chemical Power Sources , Zunyi 563000, P. R. China
| | - Junhua Wei
- State Key Laboratory of Advanced Chemical Power Sources , Zunyi 563000, P. R. China
| | - Qibing Wu
- State Key Laboratory of Advanced Chemical Power Sources , Zunyi 563000, P. R. China
| | - Kening Sun
- Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology , Harbin 150001, P. R. China
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology , Harbin 150001, P. R. China
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17
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Zhang B, Chen H, Daniel Q, Philippe B, Yu F, Valvo M, Li Y, Ambre RB, Zhang P, Li F, Rensmo H, Sun L. Defective and “c-Disordered” Hortensia-like Layered MnOx as an Efficient Electrocatalyst for Water Oxidation at Neutral pH. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00420] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Biaobiao Zhang
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Hong Chen
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Quentin Daniel
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Bertrand Philippe
- Department
of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
| | - Fengshou Yu
- State
Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis,
DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, People’s Republic of China
| | - Mario Valvo
- Department
of Chemistry - Ångström Laboratory, Uppsala University, Box 538, SE-75121 Uppsala, Sweden
| | - Yuanyuan Li
- Department
of Fibre and Polymer Technology, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Ram B. Ambre
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Peili Zhang
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Fei Li
- State
Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis,
DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, People’s Republic of China
| | - Håkan Rensmo
- Department
of Physics and Astronomy, Uppsala University, Box 516, SE-75120, Uppsala, Sweden
| | - Licheng Sun
- Department
of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
- State
Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis,
DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, People’s Republic of China
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18
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Guo D, Qi J, Zhang W, Cao R. Surface Electrochemical Modification of a Nickel Substrate to Prepare a NiFe-based Electrode for Water Oxidation. CHEMSUSCHEM 2017; 10:394-400. [PMID: 27870261 DOI: 10.1002/cssc.201601151] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Indexed: 06/06/2023]
Abstract
The slow kinetics of water oxidation greatly jeopardizes the efficiency of water electrolysis for H2 production. Developing highly active water oxidation electrodes with affordable fabrication costs is thus of great importance. Herein, a NiII FeIII surface species on Ni metal substrate was generated by electrochemical modification of Ni in a ferrous solution by a fast, simple, and cost-effective procedure. In the prepared NiII FeIII catalyst film, FeIII was incorporated uniformly through controlled oxidation of FeII cations on the electrode surface. The catalytically active NiII originated from the Ni foam substrate, which ensured the close contact between the catalyst and the support toward improved charge-transfer efficiency. The as-prepared electrode exhibited high activity and long-term stability for electrocatalytic water oxidation. The overpotentials required to reach water oxidation current densities of 50, 100, and 500 mA cm-2 are 276, 290, and 329 mV, respectively.
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Affiliation(s)
- Dingyi Guo
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P.R. China
| | - Jing Qi
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P.R. China
| | - Wei Zhang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P.R. China
| | - Rui Cao
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, P.R. China
- Department of Chemistry, Renmin University of China, Beijing, 100872, P.R. China
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19
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Najafpour MM, Moghaddam NJ, Hosseini SM, Madadkhani S, Hołyńska M, Mehrabani S, Bagheri R, Song Z. Nanolayered manganese oxides: insights from inorganic electrochemistry. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00215g] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electrochemistry of nanolayered Mn oxides in the presence of LiClO4 at pH = 6.3 under different conditions was studied.
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Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
- Center of Climate Change and Global Warming
| | - Navid Jameei Moghaddam
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | | | - Sepideh Madadkhani
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Małgorzata Hołyńska
- Fachbereich Chemie and Wissenschaftliches Zentrum für Materialwissenschaften (WZMW)
- Philipps-Universität Marburg
- D-35032 Marburg
- Germany
| | - Somayeh Mehrabani
- Department of Chemistry
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - Robabeh Bagheri
- Surface Protection Research Group
- Surface Department
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
| | - Zhenlun Song
- Surface Protection Research Group
- Surface Department
- Ningbo Institute of Materials Technology and Engineering
- Chinese Academy of Sciences
- Ningbo 315201
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20
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Yamada Y, Oyama K, Suenobu T, Fukuzumi S. Photocatalytic water oxidation by persulphate with a Ca2+ ion-incorporated polymeric cobalt cyanide complex affording O2 with 200% quantum efficiency. Chem Commun (Camb) 2017; 53:3418-3421. [DOI: 10.1039/c7cc00199a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Incorporation of a small amount of Ca2+ ions into a polymeric cobalt cyanide complex enhanced the activity for photocatalytic water oxidation by persulphate with [Ru(bpy)3]2+ at pH 7.0 to achieve a maximum quantum efficiency of 200%.
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Affiliation(s)
- Yusuke Yamada
- Department of Applied Chemistry and Bioengineering
- Graduate School of Engineering
- Osaka City University
- Osaka 558-8585
- Japan
| | - Kohei Oyama
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- SENTAN
- Japan Science and Technology Agency (JST)
| | - Tomoyoshi Suenobu
- Department of Material and Life Science
- Graduate School of Engineering
- Osaka University
- SENTAN
- Japan Science and Technology Agency (JST)
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 120-750
- Korea
- Faculty of Science and Engineering
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21
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Bonke SA, Bond AM, Spiccia L, Simonov AN. Parameterization of Water Electrooxidation Catalyzed by Metal Oxides Using Fourier Transformed Alternating Current Voltammetry. J Am Chem Soc 2016; 138:16095-16104. [DOI: 10.1021/jacs.6b10304] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shannon A. Bonke
- School of Chemistry and the
ARC Centre of Excellence for Electromaterials Science, Monash University, Clayton, Victoria 3800, Australia
| | - Alan M. Bond
- School of Chemistry and the
ARC Centre of Excellence for Electromaterials Science, Monash University, Clayton, Victoria 3800, Australia
| | - Leone Spiccia
- School of Chemistry and the
ARC Centre of Excellence for Electromaterials Science, Monash University, Clayton, Victoria 3800, Australia
| | - Alexandr N. Simonov
- School of Chemistry and the
ARC Centre of Excellence for Electromaterials Science, Monash University, Clayton, Victoria 3800, Australia
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22
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Pavliuk MV, Mijangos E, Makhankova VG, Kokozay VN, Pullen S, Liu J, Zhu J, Styring S, Thapper A. Homogeneous Cobalt/Vanadium Complexes as Precursors for Functionalized Mixed Oxides in Visible-Light-Driven Water Oxidation. CHEMSUSCHEM 2016; 9:2957-2966. [PMID: 27689346 DOI: 10.1002/cssc.201600769] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/03/2016] [Indexed: 06/06/2023]
Abstract
The heterometallic complexes (NH4 )2 [Co(H2 O)6 ]2 [V10 O28 ]⋅4 H2 O (1) and (NH4 )2 [Co(H2 O)5 (β-HAla)]2 [V10 O28 ]⋅4 H2 O (2) have been synthesized and used for the preparation of mixed oxides as catalysts for water oxidation. Thermal decomposition of 1 and 2 at relatively low temperatures (<500 °C) leads to the formation of the solid mixed oxides CoV2 O6 /V2 O5 (3) and Co2 V2 O7 /V2 O5 (4). The complexes (1, 2) and heterogeneous materials (3, 4) act as catalysts for photoinduced water oxidation. A modification of the thermal decomposition procedure allowed the deposition of mixed metal oxides (MMO) on a mesoporous TiO2 film. The electrodes containing Co/V MMOs in TiO2 films were used for electrocatalytic water oxidation and showed good stability and sustained anodic currents of about 5 mA cm-2 at 1.72 V versus relative hydrogen electrode (RHE). This method of functionalizing TiO2 films with MMOs at relatively low temperatures (<500 °C) can be used to produce other oxides with different functionality for applications in, for example, artificial photosynthesis.
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Affiliation(s)
- Mariia V Pavliuk
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden.
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64/13, 01601, Kyiv, Ukraine.
| | - Edgar Mijangos
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Valeriya G Makhankova
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64/13, 01601, Kyiv, Ukraine
| | - Vladimir N Kokozay
- Department of Inorganic Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska St. 64/13, 01601, Kyiv, Ukraine
| | - Sonja Pullen
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Jia Liu
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Jiefang Zhu
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Stenbjörn Styring
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden
| | - Anders Thapper
- Department of Chemistry-Ångström Laboratory, Uppsala University, P.O. Box 523, S-75120, Uppsala, Sweden.
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23
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Mahdi Najafpour M, Jafarian Sedigh D, Maedeh Hosseini S, Zaharieva I. Treated Nanolayered Mn Oxide by Oxidizable Compounds: A Strategy To Improve the Catalytic Activity toward Water Oxidation. Inorg Chem 2016; 55:8827-32. [DOI: 10.1021/acs.inorgchem.6b01334] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohammad Mahdi Najafpour
- Department of Chemistry, and Center of
Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Davood Jafarian Sedigh
- Department of Chemistry, and Center of
Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Seyedeh Maedeh Hosseini
- Department of Chemistry, and Center of
Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Ivelina Zaharieva
- Freie Universität Berlin, Fachbereich Physik, Arnimallee
14, D-14195 Berlin, Germany
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