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Yang F, Jiang S, Liu S, Beyer P, Mebs S, Haumann M, Roth C, Dau H. Dynamics of bulk and surface oxide evolution in copper foams for electrochemical CO 2 reduction. Commun Chem 2024; 7:66. [PMID: 38548895 PMCID: PMC10978924 DOI: 10.1038/s42004-024-01151-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 03/14/2024] [Indexed: 04/01/2024] Open
Abstract
Oxide-derived copper (OD-Cu) materials exhibit extraordinary catalytic activities in the electrochemical carbon dioxide reduction reaction (CO2RR), which likely relates to non-metallic material constituents formed in transitions between the oxidized and the reduced material. In time-resolved operando experiment, we track the structural dynamics of copper oxide reduction and its re-formation separately in the bulk of the catalyst material and at its surface using X-ray absorption spectroscopy and surface-enhanced Raman spectroscopy. Surface-species transformations progress within seconds whereas the subsurface (bulk) processes unfold within minutes. Evidence is presented that electroreduction of OD-Cu foams results in kinetic trapping of subsurface (bulk) oxide species, especially for cycling between strongly oxidizing and reducing potentials. Specific reduction-oxidation protocols may optimize formation of bulk-oxide species and thereby catalytic properties. Together with the Raman-detected surface-adsorbed *OH and C-containing species, the oxide species could collectively facilitate *CO adsorption, resulting an enhanced selectivity towards valuable C2+ products during CO2RR.
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Affiliation(s)
- Fan Yang
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Shan Jiang
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Si Liu
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Paul Beyer
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Stefan Mebs
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany.
| | - Michael Haumann
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Christina Roth
- Electrochemical Process Engineering, Universität Bayreuth, Universitätsstraße 30, Bayreuth, 95447, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany.
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2
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Mäusle SM, Agarwala N, Eichmann VG, Dau H, Nürnberg DJ, Hastings G. Nanosecond time-resolved infrared spectroscopy for the study of electron transfer in photosystem I. Photosynth Res 2024; 159:229-239. [PMID: 37420121 PMCID: PMC10991071 DOI: 10.1007/s11120-023-01035-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 06/21/2023] [Indexed: 07/09/2023]
Abstract
Microsecond time-resolved step-scan FTIR difference spectroscopy was used to study photosystem I (PSI) from Thermosynechococcus vestitus BP-1 (T. vestitus, formerly known as T. elongatus) at 77 K. In addition, photoaccumulated (P700+-P700) FTIR difference spectra were obtained at both 77 and 293 K. The FTIR difference spectra are presented here for the first time. To extend upon these FTIR studies nanosecond time-resolved infrared difference spectroscopy was also used to study PSI from T. vestitus at 296 K. Nanosecond infrared spectroscopy has never been used to study PSI samples at physiological temperatures, and here it is shown that such an approach has great value as it allows a direct probe of electron transfer down both branches in PSI. In PSI at 296 K, the infrared flash-induced absorption changes indicate electron transfer down the B- and A-branches is characterized by time constants of 33 and 364 ns, respectively, in good agreement with visible spectroscopy studies. These time constants are associated with forward electron transfer from A1- to FX on the B- and A-branches, respectively. At several infrared wavelengths flash-induced absorption changes at 296 K recover in tens to hundreds of milliseconds. The dominant decay phase is characterized by a lifetime of 128 ms. These millisecond changes are assigned to radical pair recombination reactions, with the changes being associated primarily with P700+ rereduction. This conclusion follows from the observation that the millisecond infrared spectrum is very similar to the photoaccumulated (P700+-P700) FTIR difference spectrum.
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Affiliation(s)
- Sarah M Mäusle
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Neva Agarwala
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA, 30303, USA
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Viktor G Eichmann
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
| | - Dennis J Nürnberg
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
- Dahlem Centre of Plant Sciences, Freie Universität Berlin, Berlin, Germany.
| | - Gary Hastings
- Department of Physics and Astronomy, Georgia State University, Atlanta, GA, 30303, USA.
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3
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Hausmann JN, Ashton M, Mebs S, Walter C, Selve S, Haumann M, Sontheimer T, Dau H, Driess M, Menezes PW. Intermetallic Cobalt Indium Nanoparticles as Oxygen Evolution Reaction Precatalyst: A Non-Leaching p-Block Element. Small 2024:e2309749. [PMID: 38368266 DOI: 10.1002/smll.202309749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 02/03/2024] [Indexed: 02/19/2024]
Abstract
Merely all transition-metal-based materials reconstruct into similar oxyhydroxides during the electrocatalytic oxygen evolution reaction (OER), severely limiting the options for a tailored OER catalyst design. In such reconstructions, initial constituent p-block elements take a sacrificial role and leach into the electrolyte as oxyanions, thereby losing the ability to tune the catalyst's properties systematically. From a thermodynamic point of view, indium is expected to behave differently and should remain in the solid phase under alkaline OER conditions. However, the structural behavior of transition metal indium phases during the OER remains unexplored. Herein, are synthesized intermetallic cobalt indium (CoIn3 ) nanoparticles and revealed by in situ X-ray absorption spectroscopy and scanning transmission microscopy that they undergo phase segregation to cobalt oxyhydroxide and indium hydroxide. The obtained cobalt oxyhydroxide outperforms a metallic-cobalt-derived one due to more accessible active sites. The observed phase segregation shows that indium behaves distinctively differently from most p-block elements and remains at the electrode surface, where it can form lasting interfaces with the active metal oxo phases.
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Affiliation(s)
- J Niklas Hausmann
- Material Chemistry Group for Thin Film Catalysis-CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
| | - Marten Ashton
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Stefan Mebs
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Carsten Walter
- Material Chemistry Group for Thin Film Catalysis-CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
| | - Sören Selve
- Center for Electron Microscopy (ZELMI), Technische Universität Berlin, Straße des 17. Juni 135, Sekr. KWT2, 10623, Berlin, Germany
| | - Michael Haumann
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Tobias Sontheimer
- Strategy Department of Energy and Information, Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Material Chemistry Group for Thin Film Catalysis-CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
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Behrouzi L, Mohammadi MR, Dau H, Kaboudin B, Najafpour MM. Exploring an Electrochemical Route for Water-Enhanced Oxygenation Reactions Utilizing Nickel Molecular Structures: A Case Study. Inorg Chem 2024; 63:2268-2274. [PMID: 38231697 DOI: 10.1021/acs.inorgchem.3c04260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Recently, Ni molecular catalysis has been extensively applied in oxygenation reactions. This work is underpinned by the characterization techniques and the discovered instability of the Ni-bipyridine/phenanthroline system, which results in Ni (hydr)oxide production under oxidative conditions. The practical applications of this mechanism by employing a prepared Ni (hydr)oxide-based electrode specifically in the oxygenation of sulfides, achieving noteworthy yields in contrast to noncatalyst control experiments, are explored. Thus, a Ni (hydr)oxide-based material is proposed as a candidate for the true catalyst for sulfide oxidation in the presence of the Ni-bipyridine/phenanthroline system. The findings of this study are expected to stimulate discussion and encourage new viewpoints within the chemical community regarding the potential applications and mechanisms of molecular catalysts in oxidation reactions.
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Affiliation(s)
- Leila Behrouzi
- Department of Physics, University of Sistan and Baluchestan, 98167-45845 Zahedan, Iran
| | | | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Babak Kaboudin
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
- Center of Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
- Research Center for Basic Sciences & Modern Technologies (RBST), Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
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Devi T, Dutta K, Deutscher J, Mebs S, Kuhlmann U, Haumann M, Cula B, Dau H, Hildebrandt P, Ray K. A high-spin alkylperoxo-iron(iii) complex with cis-anionic ligands: implications for the superoxide reductase mechanism. Chem Sci 2024; 15:528-533. [PMID: 38179538 PMCID: PMC10762717 DOI: 10.1039/d3sc05603a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/05/2023] [Indexed: 01/06/2024] Open
Abstract
The N3O macrocycle of the 12-TMCO ligand stabilizes a high spin (S = 5/2) [FeIII(12-TMCO)(OOtBu)Cl]+ (3-Cl) species in the reaction of [FeII(12-TMCO)(OTf)2] (1-(OTf)2) with tert-butylhydroperoxide (tBuOOH) in the presence of tetraethylammonium chloride (NEt4Cl) in acetonitrile at -20 °C. In the absence of NEt4Cl the oxo-iron(iv) complex 2 [FeIV(12-TMCO)(O)(CH3CN)]2+ is formed, which can be further converted to 3-Cl by adding NEt4Cl and tBuOOH. The role of the cis-chloride ligand in the stabilization of the FeIII-OOtBu moiety can be extended to other anions including the thiolate ligand relevant to the enzyme superoxide reductase (SOR). The present study underlines the importance of subtle electronic changes and secondary interactions in the stability of the biologically relevant metal-dioxygen intermediates. It also provides some rationale for the dramatically different outcomes of the chemistry of iron(iii)peroxy intermediates formed in the catalytic cycles of SOR (Fe-O cleavage) and cytochrome P450 (O-O bond lysis) in similar N4S coordination environments.
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Affiliation(s)
- Tarali Devi
- Institut für Chemie, Humboldt-Universitat zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
- Department of Inorganic and Physical Chemistry, Indian Institute of Science Bangalore Karnataka-560012 India
| | - Kuheli Dutta
- Institut für Chemie, Humboldt-Universitat zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Jennifer Deutscher
- Institut für Chemie, Humboldt-Universitat zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Stefan Mebs
- Department of Physics, Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Uwe Kuhlmann
- Institut für Chemie, Technische Universität Berlin Fakultät II, Straße des 17. Juni 135 10623 Berlin Germany
| | - Michael Haumann
- Department of Physics, Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Beatrice Cula
- Institut für Chemie, Humboldt-Universitat zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Peter Hildebrandt
- Institut für Chemie, Technische Universität Berlin Fakultät II, Straße des 17. Juni 135 10623 Berlin Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universitat zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
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6
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Jiang W, Xia L, Ferreira Gomes B, Haumann M, Dau H, Roth C, Lehnert W, Shviro M. Facile and Green Synthesis of Well-Defined Nanocrystal Oxygen Evolution Catalysts by Rational Crystallization Regulation. Small 2023:e2308594. [PMID: 38152974 DOI: 10.1002/smll.202308594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/20/2023] [Indexed: 12/29/2023]
Abstract
The development of catalysts for an economical and efficient oxygen evolution reaction (OER) is critical for clean and sustainable energy storage and conversion. Nickel-iron-based (NiFe) nanostructures are widely investigated as active OER catalysts and especially shape-controlled nanocrystals exhibit optimized surface structure and electronic properties. However, the structural control from amorphous to well-defined crystals is usually time-consuming and requires multiple stages. Here, a universal two-step precipitation-hydrothermal approach is reported to prepare a series of NiFe-based nanocrystals (e.g., hydroxides, sulfides, and molybdates) from amorphous precipitates. Their morphology and evolution of atomic and electronic structure during this process are studied using conclusive microscopy and spectroscopy techniques. The short-term, additive-free, and low-cost method allows for the control of the crystallinity of the materials and facilitates the generation of nanosheets, nanorods, or nano-octahedra with excellent water oxidation activity. The NiFe-based crystalline catalysts exhibit slightly compromised initial activity but more robust long-term stability than their amorphous counterparts during electrochemical operation. This facile, reliable, and universal synthesis method is promising in strategies for fabricating NiFe-based nanostructures as efficient and economically valuable OER electrocatalysts.
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Affiliation(s)
- Wulyu Jiang
- Electrochemical Process Engineering (IEK-14), Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, 52425, Jülich, Germany
- Faculty of Mechanical Engineering, RWTH Aachen University, 52056, Aachen, Germany
| | - Lu Xia
- Electrochemical Process Engineering (IEK-14), Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, 52425, Jülich, Germany
- Faculty of Mechanical Engineering, RWTH Aachen University, 52056, Aachen, Germany
| | - Bruna Ferreira Gomes
- Electrochemical Process Engineering, University of Bayreuth, Universitätstraße 30, 95447, Bayreuth, Germany
| | - Michael Haumann
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Christina Roth
- Electrochemical Process Engineering, University of Bayreuth, Universitätstraße 30, 95447, Bayreuth, Germany
| | - Werner Lehnert
- Electrochemical Process Engineering (IEK-14), Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, 52425, Jülich, Germany
- Faculty of Mechanical Engineering, RWTH Aachen University, 52056, Aachen, Germany
| | - Meital Shviro
- Electrochemical Process Engineering (IEK-14), Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, 52425, Jülich, Germany
- Chemistry and Nanoscience Center, National Renewable Energy Laboratory (NREL), Golden, CO, 80401, USA
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7
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Dekmak MY, Mäusle SM, Brandhorst J, Simon PS, Dau H. Tracking the first electron transfer step at the donor side of oxygen-evolving photosystem II by time-resolved infrared spectroscopy. Photosynth Res 2023:10.1007/s11120-023-01057-3. [PMID: 37995064 DOI: 10.1007/s11120-023-01057-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/24/2023] [Indexed: 11/24/2023]
Abstract
In oxygen-evolving photosystem II (PSII), the multi-phasic electron transfer from a redox-active tyrosine residue (TyrZ) to a chlorophyll cation radical (P680+) precedes the water-oxidation chemistry of the S-state cycle of the Mn4Ca cluster. Here we investigate these early events, observable within about 10 ns to 10 ms after laser-flash excitation, by time-resolved single-frequency infrared (IR) spectroscopy in the spectral range of 1310-1890 cm-1 for oxygen-evolving PSII membrane particles from spinach. Comparing the IR difference spectra at 80 ns, 500 ns, and 10 µs allowed for the identification of quinone, P680 and TyrZ contributions. A broad electronic absorption band assignable P680+ was used to trace largely specifically the P680+ reduction kinetics. The experimental time resolution was taken into account in least-square fits of P680+ transients with a sum of four exponentials, revealing two nanosecond phases (30-46 ns and 690-1110 ns) and two microsecond phases (4.5-8.3 µs and 42 µs), which mostly exhibit a clear S-state dependence, in agreement with results obtained by other methods. Our investigation paves the road for further insight in the early events associated with TyrZ oxidation and their role in the preparing the PSII donor side for the subsequent water oxidation chemistry.
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Affiliation(s)
| | - Sarah M Mäusle
- Department of Physics, Freie Universität Berlin, Berlin, Germany.
| | | | - Philipp S Simon
- Department of Physics, Freie Universität Berlin, Berlin, Germany
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Berlin, Germany.
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8
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Zand Z, Mousazade Y, Arevalo RL, Bagheri R, Mohammadi MR, Bikas R, Chernev P, Aleshkevych P, Vandichel M, Song Z, Dau H, Najafpour MM. Role of decomposition products in the oxidation of cyclohexene using a manganese(III) complex. Commun Chem 2023; 6:94. [PMID: 37198430 DOI: 10.1038/s42004-023-00881-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 04/14/2023] [Indexed: 05/19/2023] Open
Abstract
Metal complexes are extensively explored as catalysts for oxidation reactions; molecular-based mechanisms are usually proposed for such reactions. However, the roles of the decomposition products of these materials in the catalytic process have yet to be considered for these reactions. Herein, the cyclohexene oxidation in the presence of manganese(III) 5,10,15,20-tetra(4-pyridyl)-21H,23H-porphine chloride tetrakis(methochloride) (1) in a heterogeneous system via loading the complex on an SBA-15 substrate is performed as a study case. A molecular-based mechanism is usually suggested for such a metal complex. Herein, 1 was selected and investigated under the oxidation reaction by iodosylbenzene or (diacetoxyiodo)benzene (PhI(OAc)2). In addition to 1, at least one of the decomposition products of 1 formed during the oxidation reaction could be considered a candidate to catalyze the reaction. First-principles calculations show that Mn dissolution is energetically feasible in the presence of iodosylbenzene and trace amounts of water.
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Affiliation(s)
- Zahra Zand
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Younes Mousazade
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Ryan Lacdao Arevalo
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Robabeh Bagheri
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, China
| | | | - Rahman Bikas
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, 34148-96818, Qazvin, Iran
| | - Petko Chernev
- Fachbereich Physik, Freie Universit-t Berlin, Arnimallee 14, 14195, Berlin, Germany
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, Uppsala, 751 20, Sweden
| | - Pavlo Aleshkevych
- Institute of Physics, Polish Academy of Sciences (PAN), Al. Lotnikow 32/46, PL-02-668, Warsaw, Poland
| | - Matthias Vandichel
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick, V94 T9PX, Ireland
| | - Zhenlun Song
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, China
| | - Holger Dau
- Fachbereich Physik, Freie Universit-t Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran.
- Center of Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, Iran.
- Research Center for Basic Sciences & Modern Technologies (RBST), Institute for Advanced Studies in Basic Sciences (IASBS), 45137-66731, Zanjan, Iran.
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Greife P, Schönborn M, Capone M, Assunção R, Narzi D, Guidoni L, Dau H. The electron-proton bottleneck of photosynthetic oxygen evolution. Nature 2023; 617:623-628. [PMID: 37138082 DOI: 10.1038/s41586-023-06008-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/23/2023] [Indexed: 05/05/2023]
Abstract
Photosynthesis fuels life on Earth by storing solar energy in chemical form. Today's oxygen-rich atmosphere has resulted from the splitting of water at the protein-bound manganese cluster of photosystem II during photosynthesis. Formation of molecular oxygen starts from a state with four accumulated electron holes, the S4 state-which was postulated half a century ago1 and remains largely uncharacterized. Here we resolve this key stage of photosynthetic O2 formation and its crucial mechanistic role. We tracked 230,000 excitation cycles of dark-adapted photosystems with microsecond infrared spectroscopy. Combining these results with computational chemistry reveals that a crucial proton vacancy is initally created through gated sidechain deprotonation. Subsequently, a reactive oxygen radical is formed in a single-electron, multi-proton transfer event. This is the slowest step in photosynthetic O2 formation, with a moderate energetic barrier and marked entropic slowdown. We identify the S4 state as the oxygen-radical state; its formation is followed by fast O-O bonding and O2 release. In conjunction with previous breakthroughs in experimental and computational investigations, a compelling atomistic picture of photosynthetic O2 formation emerges. Our results provide insights into a biological process that is likely to have occurred unchanged for the past three billion years, which we expect to support the knowledge-based design of artificial water-splitting systems.
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Affiliation(s)
- Paul Greife
- Department of Physics, Freie Universität, Berlin, Germany
| | | | - Matteo Capone
- Department of Information Engineering, Computer Science and Mathematics, University of L'Aquila, L'Aquila, Italy
- Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy
| | | | - Daniele Narzi
- Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Leonardo Guidoni
- Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy.
| | - Holger Dau
- Department of Physics, Freie Universität, Berlin, Germany.
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10
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Battistella B, Lohmiller T, Cula B, Hildebrandt P, Kuhlmann U, Dau H, Mebs S, Ray K. A New Thiolate-Bound Dimanganese Cluster as a Structural and Functional Model for Class Ib Ribonucleotide Reductases. Angew Chem Int Ed Engl 2023; 62:e202217076. [PMID: 36583430 DOI: 10.1002/anie.202217076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/24/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
In class Ib ribonucleotide reductases (RNRs) a dimanganese(II) cluster activates superoxide (O2 ⋅- ) rather than dioxygen (O2 ), to access a high valent MnIII -O2 -MnIV species, responsible for the oxidation of tyrosine to tyrosyl radical. In a biomimetic approach, we report the synthesis of a thiolate-bound dimanganese complex [MnII 2 (BPMT)(OAc)2 ](ClO)4 (BPMT=(2,6-bis{[bis(2-pyridylmethyl)amino]methyl}-4-methylthiophenolate) (1) and its reaction with O2 ⋅- to form a [(BPMT)MnO2 Mn]2+ complex 2. Resonance Raman investigation revealed the presence of an O-O bond in 2, while EPR analysis displayed a 16-line St =1/2 signal at g=2 typically associated with a MnIII MnIV core, as detected in class Ib RNRs. Unlike all other previously reported Mn-O2 -Mn complexes, generated by O2 ⋅- activation at Mn2 centers, 2 proved to be a capable electrophilic oxidant in aldehyde deformylation and phenol oxidation reactions, rendering it one of the best structural and functional models for class Ib RNRs.
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Affiliation(s)
- Beatrice Battistella
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Thomas Lohmiller
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.,EPR4Energy Joint Lab, Department Spins in Energy Conversion and Quantum Information Science, Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 16, 12489, Berlin, Germany
| | - Beatrice Cula
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Peter Hildebrandt
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Uwe Kuhlmann
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Holger Dau
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Stefan Mebs
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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11
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Kass D, Yao S, Krause KB, Corona T, Richter L, Braun T, Mebs S, Haumann M, Dau H, Lohmiller T, Limberg C, Drieß M, Ray K. Spectroscopic Properties of a Biologically Relevant [Fe 2 (μ-O) 2 ] Diamond Core Motif with a Short Iron-Iron Distance. Angew Chem Int Ed Engl 2023; 62:e202209437. [PMID: 36541062 DOI: 10.1002/anie.202209437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 12/05/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Diiron cofactors in enzymes perform diverse challenging transformations. The structures of high valent intermediates (Q in methane monooxygenase and X in ribonucleotide reductase) are debated since Fe-Fe distances of 2.5-3.4 Å were attributed to "open" or "closed" cores with bridging or terminal oxido groups. We report the crystallographic and spectroscopic characterization of a FeIII 2 (μ-O)2 complex (2) with tetrahedral (4C) centres and short Fe-Fe distance (2.52 Å), persisting in organic solutions. 2 shows a large Fe K-pre-edge intensity, which is caused by the pronounced asymmetry at the TD FeIII centres due to the short Fe-μ-O bonds. A ≈2.5 Å Fe-Fe distance is unlikely for six-coordinate sites in Q or X, but for a Fe2 (μ-O)2 core containing four-coordinate (or by possible extension five-coordinate) iron centres there may be enough flexibility to accommodate a particularly short Fe-Fe separation with intense pre-edge transition. This finding may broaden the scope of models considered for the structure of high-valent diiron intermediates formed upon O2 activation in biology.
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Affiliation(s)
- Dustin Kass
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Shenglai Yao
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623, Berlin, Germany
| | - Konstantin B Krause
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Teresa Corona
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Liza Richter
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Thomas Braun
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Stefan Mebs
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Michael Haumann
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Thomas Lohmiller
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.,EPR4Energy Joint Lab, Department Spins in Energy Conversion and Quantum Information Science, Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Straße 16, 12489, Berlin, Germany
| | - Christian Limberg
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Matthias Drieß
- Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 115, 10623, Berlin, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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12
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Chen Z, Yang H, Mebs S, Dau H, Driess M, Wang Z, Kang Z, Menezes PW. Reviving Oxygen Evolution Electrocatalysis of Bulk La-Ni Intermetallics via Gaseous Hydrogen Engineering. Adv Mater 2023; 35:e2208337. [PMID: 36528302 DOI: 10.1002/adma.202208337] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2022] [Revised: 12/05/2022] [Indexed: 06/17/2023]
Abstract
A hydrogen processing strategy is developed to enable bulk LaNi5 to attain high activity and long-term stability toward the electrocatalytic oxygen evolution reaction (OER). By a combination of in situ Raman and quasi in situ X-ray absorption (XAS) spectra, secondary-electron-excited scanning transmission electron microscopy (STEM) patterns as well as the Rietveld method and density functional theory (DFT) calculations, it is discovered that hydrogen-induced lattice distortion, grain refinement, and particle cracks dictate the effective reconstruction of the LaNi5 surface into a porous hetero-nanoarchitecture composed of uniformly confined active γ-NiOOH nanocrystals by La(OH)3 layer in the alkaline OER process. This significantly optimizes the charge transfer, structural integrity, active-site exposure, and adsorption energy toward the reaction intermediates. Benefiting from these merits, the overpotential (322 mV) at 100 mA cm-2 for the hydrogen-processed OER catalyst deposited on nickel foam is reduced by 104 mV as compared to the original phase. Notably, it exhibits remarkable stability for 10 days at an industrial-grade current density of more than 560 mA cm-2 in alkaline media.
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Affiliation(s)
- Ziliang Chen
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Hongyuan Yang
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Stefan Mebs
- S Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- S Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Zhaowu Wang
- School of Physics and Engineering, Longmen laboratory, Henan University of Science and Technology, Luoyang, 471023, P. R. China
| | - Zhenhui Kang
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, P. R. China
| | - Prashanth W Menezes
- Department of Chemistry, Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
- Materials Chemistry Group for Thin Film Catalysis-CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489, Berlin, Germany
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13
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Battistella B, Iffland-Mühlhaus L, Schütze M, Cula B, Kuhlmann U, Dau H, Hildebrandt P, Lohmiller T, Mebs S, Apfel UP, Ray K. Evidence of Sulfur Non-Innocence in [Co II (dithiacyclam)] 2+ -Mediated Catalytic Oxygen Reduction Reactions. Angew Chem Int Ed Engl 2023; 62:e202214074. [PMID: 36378951 PMCID: PMC10108118 DOI: 10.1002/anie.202214074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/10/2022] [Accepted: 11/14/2022] [Indexed: 11/16/2022]
Abstract
In many metalloenzymes, sulfur-containing ligands participate in catalytic processes, mainly via the involvement in electron transfer reactions. In a biomimetic approach, we now demonstrate the implication of S-ligation in cobalt mediated oxygen reduction reactions (ORR). A comparative study between the catalytic ORR capabilities of the four-nitrogen bound [Co(cyclam)]2+ (1; cyclam=1,5,8,11-tetraaza-cyclotetradecane) and the S-containing analog [Co(S2 N2 -cyclam)]2+ (2; S2 N2 -cyclam=1,8-dithia-5,11-diaza-cyclotetradecane) reveals improved catalytic performance once the chalcogen is introduced in the Co coordination sphere. Trapping and characterization of the intermediates formed upon dioxygen activation at the CoII centers in 1 and 2 point to the involvement of sulfur in the O2 reduction process as the key for the improved catalytic ORR capabilities of 2.
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Affiliation(s)
- Beatrice Battistella
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Linda Iffland-Mühlhaus
- Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44780, Bochum, Germany
| | - Maximillian Schütze
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Beatrice Cula
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Uwe Kuhlmann
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Holger Dau
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Peter Hildebrandt
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Thomas Lohmiller
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.,EPR4Energy Joint Lab, Department Spins in Energy Conversion and Quantum Information Science, Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 16, 12489, Berlin, Germany
| | - Stefan Mebs
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Ulf-Peter Apfel
- Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstraße 150, 44780, Bochum, Germany.,Department for Electrosynthesis, Fraunhofer Institute for Environmental, Safety and Energy Technology UMSICHT, Osterfelder Str. 3, 46047, Oberhausen, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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14
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Paulikat M, Vitone D, Schackert FK, Schuth N, Barbanente A, Piccini G, Ippoliti E, Rossetti G, Clark AH, Nachtegaal M, Haumann M, Dau H, Carloni P, Geremia S, De Zorzi R, Quintanar L, Arnesano F. Molecular Dynamics and Structural Studies of Zinc Chloroquine Complexes. J Chem Inf Model 2023; 63:161-172. [PMID: 36468829 DOI: 10.1021/acs.jcim.2c01164] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Chloroquine (CQ) is a first-choice drug against malaria and autoimmune diseases. It has been co-administered with zinc against SARS-CoV-2 and soon dismissed because of safety issues. The structural features of Zn-CQ complexes and the effect of CQ on zinc distribution in cells are poorly known. In this study, state-of-the-art computations combined with experiments were leveraged to solve the structural determinants of zinc-CQ interactions in solution and the solid state. NMR, ESI-MS, and X-ray absorption and diffraction methods were combined with ab initio molecular dynamics calculations to address the kinetic lability of this complex. Within the physiological pH range, CQ binds Zn2+ through the quinoline ring nitrogen, forming [Zn(CQH)Clx(H2O)3-x](3+)-x (x = 0, 1, 2, and 3) tetrahedral complexes. The Zn(CQH)Cl3 species is stable at neutral pH and at high chloride concentrations typical of the extracellular medium, but metal coordination is lost at a moderately low pH as in the lysosomal lumen. The pentacoordinate complex [Zn(CQH)(H2O)4]3+ may exist in the absence of chloride. This in vitro/in silico approach can be extended to other metal-targeting drugs and bioinorganic systems.
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Affiliation(s)
- Mirko Paulikat
- Computational Biomedicine (IAS-5/INM-9), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | - Daniele Vitone
- Department of Chemistry, University of Bari "Aldo Moro", 70125Bari, Italy
| | - Florian K Schackert
- Computational Biomedicine (IAS-5/INM-9), Forschungszentrum Jülich GmbH, 52428Jülich, Germany.,Department of Physics, RWTH Aachen University, 52062Aachen, Germany
| | - Nils Schuth
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), 07360Mexico City, Mexico
| | | | | | - Emiliano Ippoliti
- Computational Biomedicine (IAS-5/INM-9), Forschungszentrum Jülich GmbH, 52428Jülich, Germany
| | - Giulia Rossetti
- Computational Biomedicine (IAS-5/INM-9), Forschungszentrum Jülich GmbH, 52428Jülich, Germany.,Jülich Supercomputing Centre (JSC), Forschungszentrum Jülich GmbH, 52428Jülich, Germany.,Department of Neurology, RWTH Aachen University, 52062Aachen, Germany
| | - Adam H Clark
- Paul Scherrer Institute, 5232Villigen, Switzerland
| | | | - Michael Haumann
- Department of Physics, Freie Universität Berlin, 14195Berlin, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, 14195Berlin, Germany
| | - Paolo Carloni
- Computational Biomedicine (IAS-5/INM-9), Forschungszentrum Jülich GmbH, 52428Jülich, Germany.,Department of Physics, RWTH Aachen University, 52062Aachen, Germany
| | - Silvano Geremia
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127Trieste, Italy
| | - Rita De Zorzi
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, 34127Trieste, Italy
| | - Liliana Quintanar
- Department of Chemistry, Center for Research and Advanced Studies (Cinvestav), 07360Mexico City, Mexico
| | - Fabio Arnesano
- Department of Chemistry, University of Bari "Aldo Moro", 70125Bari, Italy
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15
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Battistella B, Lohmiller T, Cula B, Hildebrandt P, Kuhlmann U, Dau H, Mebs S, Ray K. A Thiolate‐Bound Dimanganese Cluster as a Structural and Functional Model for Class Ib Ribonucleotide Reductases. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202217076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Beatrice Battistella
- Humboldt University of Berlin: Humboldt-Universitat zu Berlin Department of Chemistry GERMANY
| | - Thomas Lohmiller
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin Department of Chemistry GERMANY
| | - Beatrice Cula
- Humboldt University of Berlin: Humboldt-Universitat zu Berlin Department of Chemistry GERMANY
| | - Peter Hildebrandt
- TU Berlin: Technische Universitat Berlin Institut für Chemie GERMANY
| | - Uwe Kuhlmann
- TU Berlin University: Technische Universitat Berlin Institut für Chemie GERMANY
| | - Holger Dau
- FU Berlin: Freie Universitat Berlin Institut für Physik GERMANY
| | - Stefan Mebs
- FU Berlin: Freie Universitat Berlin Institut für Physik GERMANY
| | - Kallol Ray
- Humboldt university Institute of chemistry Brook-taylor strasse 2 12489 Berlin GERMANY
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16
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Kass D, Yao S, Krause K, Corona T, Richter L, Braun T, Mebs S, Haumann M, Dau H, Lohmiller T, Limberg C, Drieß M, Ray K. Spectroscopic Properties of a Biologically Relevant [Fe2(μ‐O)2] Diamond Core Motif with a Short Iron‐Iron distance. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Dustin Kass
- Humboldt University of Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Shenglai Yao
- Technical University of Berlin: Technische Universitat Berlin Chemistry GERMANY
| | | | - Teresa Corona
- HU Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Liza Richter
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin chemistry GERMANY
| | - Thomas Braun
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin chemistry GERMANY
| | - Stefan Mebs
- Freie Universität Berlin: Freie Universitat Berlin Institut für Physik GERMANY
| | - Michael Haumann
- Freie Universität Berlin: Freie Universitat Berlin Institut für Physik GERMANY
| | - Holger Dau
- Freie Universität Berlin: Freie Universitat Berlin Institut für Physik GERMANY
| | | | | | - Matthias Drieß
- Technical University of Berlin: Technische Universitat Berlin chemistry GERMANY
| | - Kallol Ray
- Humboldt university Institute of chemistry Brook-taylor strasse 2 12489 Berlin GERMANY
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17
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El-Nagar GA, Yang F, Stojkovikj S, Mebs S, Gupta S, Ahmet IY, Dau H, Mayer MT. Comparative Spectroscopic Study Revealing Why the CO 2 Electroreduction Selectivity Switches from CO to HCOO - at Cu-Sn- and Cu-In-Based Catalysts. ACS Catal 2022; 12:15576-15589. [PMID: 36590316 PMCID: PMC9793466 DOI: 10.1021/acscatal.2c04419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/17/2022] [Indexed: 12/12/2022]
Abstract
To address the challenge of selectivity toward single products in Cu-catalyzed electrochemical CO2 reduction, one strategy is to incorporate a second metal with the goal of tuning catalytic activity via synergy effects. In particular, catalysts based on Cu modified with post-transition metals (Sn or In) are known to reduce CO2 selectively to either CO or HCOO- depending on their composition. However, it remains unclear exactly which factors induce this switch in reaction pathways and whether these two related bimetal combinations follow similar general structure-activity trends. To investigate these questions systematically, Cu-In and Cu-Sn bimetallic catalysts were synthesized across a range of composition ratios and studied in detail. Compositional and morphological control was achieved via a simple electrochemical synthesis approach. A combination of operando and quasi-in situ spectroscopic techniques, including X-ray photoelectron, X-ray absorption, and Raman spectroscopy, was used to observe the dynamic behaviors of the catalysts' surface structure, composition, speciation, and local environment during CO2 electrolysis. The two systems exhibited similar selectivity dependency on their surface composition. Cu-rich catalysts produce mainly CO, while Cu-poor catalysts were found to mainly produce HCOO-. Despite these similarities, the speciation of Sn and In at the surface differed from each other and was found to be strongly dependent on the applied potential and the catalyst composition. For Cu-rich compositions optimized for CO production (Cu85In15 and Cu85Sn15), indium was present predominantly in the reduced metallic form (In0), whereas tin mainly existed as an oxidized species (Sn2/4+). Meanwhile, for the HCOO--selective compositions (Cu25In75 and Cu40Sn60), the indium exclusively exhibited In0 regardless of the applied potential, while the tin was reduced to metallic (Sn0) only at the most negative applied potential, which corresponds to the best HCOO- selectivity. Furthermore, while Cu40Sn60 enhances HCOO- selectivity by inhibiting H2 evolution, Cu25In75 improves the HCOO- selectivity at the expense of CO production. Due to these differences, we contend that identical mechanisms cannot be used to explain the behavior of these two bimetallic systems (Cu-In and Cu-Sn). Operando surface-enhanced Raman spectroscopy measurements provide direct evidence of the local alkalization and its impact on the dynamic transformation of oxidized Cu surface species (Cu2O/CuO) into a mixture of Cu(OH)2 and basic Cu carbonates [Cux(OH)y(CO3)y] rather than metallic Cu under CO2 electrolysis. This study provides unique insights into the origin of the switch in selectivity between CO and HCOO- pathways at Cu bimetallic catalysts and the nature of surface-active sites and key intermediates for both pathways.
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Affiliation(s)
- Gumaa A. El-Nagar
- Young
Investigator Group Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialien und
Energie GmbH, Hahn-Meitner-Platz 1, Berlin 14109, Germany,Department
of Chemistry, Faculty of Science, Cairo
University, Giza 12613, Egypt,
| | - Fan Yang
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, Berlin 14195, Germany
| | - Sasho Stojkovikj
- Young
Investigator Group Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialien und
Energie GmbH, Hahn-Meitner-Platz 1, Berlin 14109, Germany,Institut
für Chemie und Biochemie, Freie Universität
Berlin, Arnimallee 22, Berlin D-14195, Germany
| | - Stefan Mebs
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, Berlin 14195, Germany
| | - Siddharth Gupta
- Young
Investigator Group Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialien und
Energie GmbH, Hahn-Meitner-Platz 1, Berlin 14109, Germany,Institut
für Chemie und Biochemie, Freie Universität
Berlin, Arnimallee 22, Berlin D-14195, Germany
| | - Ibbi Y. Ahmet
- Institute
for Solar Fuels, Helmholtz-Zentrum Berlin
für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, Berlin 14109, Germany
| | - Holger Dau
- Department
of Physics, Freie Universität Berlin, Arnimallee 14, Berlin 14195, Germany
| | - Matthew T. Mayer
- Young
Investigator Group Electrochemical Conversion of CO2, Helmholtz-Zentrum Berlin für Materialien und
Energie GmbH, Hahn-Meitner-Platz 1, Berlin 14109, Germany,Institut
für Chemie und Biochemie, Freie Universität
Berlin, Arnimallee 22, Berlin D-14195, Germany,
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18
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Hausmann JN, Mebs S, Dau H, Driess M, Menezes PW. Oxygen Evolution Activity of Amorphous Cobalt Oxyhydroxides: Interconnecting Precatalyst Reconstruction, Long-Range Order, Buffer-Binding, Morphology, Mass Transport, and Operation Temperature. Adv Mater 2022; 34:e2207494. [PMID: 36189873 DOI: 10.1002/adma.202207494] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Nanocrystalline or amorphous cobalt oxyhydroxides (CoCat) are promising electrocatalysts for the oxygen evolution reaction (OER). While having the same short-range order, CoCat phases possess different electrocatalytic properties. This phenomenon is not conclusively understood, as multiple interdependent parameters affect the OER activity simultaneously. Herein, a layered cobalt borophosphate precatalyst, Co(H2 O)2 [B2 P2 O8 (OH)2 ]·H2 O, is fully reconstructed into two different CoCat phases. In contrast to previous reports, this reconstruction is not initiated at the surface but at the electrode substrate to catalyst interface. Ex situ and in situ investigations of the two borophosphate derived CoCats, as well as the prominent CoPi and CoBi identify differences in the Tafel slope/range, buffer binding and content, long-range order, number of accessible edge sites, redox activity, and morphology. Considering and interconnecting these aspects together with proton mass-transport limitations, a comprehensive picture is provided explaining the different OER activities. The most decisive factors are the buffers used for reconstruction, the number of edge sites that are not inhibited by irreversibly bonded buffers, and the morphology. With this acquired knowledge, an optimized OER system is realized operating in near-neutral potassium borate medium at 1.62 ± 0.03 VRHE yielding 250 mA cm-2 at 65 °C for 1 month without degrading performance.
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Affiliation(s)
- J Niklas Hausmann
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Stefan Mebs
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135, Sekr. C2, 10623, Berlin, Germany
- Material Chemistry Group for Thin Film Catalysis-CatLab, Helmholtz-Center Berlin for Materials and Energy, Albert-Einstein-Str. 15, 12489, Berlin, Germany
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19
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Battistella B, Iffland-Mühlhaus L, Schütze M, Cula B, Kuhlmann U, Dau H, Hildebrandt P, Lohmiller T, Mebs S, Apfel UP, Ray K. Evidence of Sulfur Non‐Innocence in [CoII(dithiacyclam)]2+‐Mediated Catalytic Oxygen Reduction Reactions. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202214074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Beatrice Battistella
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Linda Iffland-Mühlhaus
- Ruhr-Universität Bochum: Ruhr-Universitat Bochum Faculty of Chemistry and Biochemistry GERMANY
| | - Maximillian Schütze
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Beatrice Cula
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Uwe Kuhlmann
- Technical University of Berlin: Technische Universitat Berlin Chemistry GERMANY
| | - Holger Dau
- FU Berlin: Freie Universitat Berlin Physics GERMANY
| | | | - Thomas Lohmiller
- Humboldt-Universität zu Berlin: Humboldt-Universitat zu Berlin Chemistry GERMANY
| | - Stefan Mebs
- FU Berlin: Freie Universitat Berlin Physics GERMANY
| | - Ulf-Peter Apfel
- Ruhr University Bochum: Ruhr-Universitat Bochum Faculty of Chemistry and Biochemistry GERMANY
| | - Kallol Ray
- Humboldt university Institute of chemistry Brook-taylor strasse 2 12489 Berlin GERMANY
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20
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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. Photosynth Res 2022; 152:107-133. [PMID: 35397059 DOI: 10.1007/s11120-022-00912-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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21
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Jiang S, D'Amario L, Dau H. Copper Carbonate Hydroxide as Precursor of Interfacial CO in CO 2 Electroreduction. ChemSusChem 2022; 15:e202102506. [PMID: 35289108 PMCID: PMC9314821 DOI: 10.1002/cssc.202102506] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/01/2022] [Indexed: 06/14/2023]
Abstract
Copper electrodes are especially effective in catalysis of C2 and further multi-carbon products in the CO2 reduction reaction (CO2 RR) and therefore of major technological interest. The reasons for the unparalleled Cu performance in CO2 RR are insufficiently understood. Here, the electrode-electrolyte interface was highlighted as a dynamic physical-chemical system and determinant of catalytic events. Exploiting the intrinsic surface-enhanced Raman effect of previously characterized Cu foam electrodes, operando Raman experiments were used to interrogate structures and molecular interactions at the electrode-electrolyte interface at subcatalytic and catalytic potentials. Formation of a copper carbonate hydroxide (CuCarHyd) was detected, which resembles the mineral malachite. Its carbonate ions could be directly converted to CO at low overpotential. These and further experiments suggested a basic mode of CO2 /carbonate reduction at Cu electrodes interfaces that contrasted previous mechanistic models: the starting point in carbon reduction was not CO2 but carbonate ions bound to the metallic Cu electrode in form of CuCarHyd structures. It was hypothesized that Cu oxides residues could enhance CO2 RR indirectly by supporting formation of CuCarHyd motifs. The presence of CuCarHyd patches at catalytic potentials might result from alkalization in conjunction with local electrical potential gradients, enabling the formation of metastable CuCarHyd motifs over a large range of potentials.
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Affiliation(s)
- Shan Jiang
- Department of PhysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Luca D'Amario
- Department of PhysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
- Department of ChemistryÅngström LaboratoryUppsala UniversityBox 52375120UppsalaSweden
| | - Holger Dau
- Department of PhysicsFreie Universität BerlinArnimallee 1414195BerlinGermany
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22
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Warm K, Kass D, Haumann M, Dau H, Ray K. Modelling the coordination environment in α‐ketoglutarate dependent oxygenases – a comparative study on the effect of N‐ vs. O‐ligation. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202100310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Katrin Warm
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Dustin Kass
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Michael Haumann
- Institut für Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Holger Dau
- Institut für Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Kallol Ray
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
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23
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D'Amario L, Stella MB, Edvinsson T, Persico M, Messinger J, Dau H. Towards time resolved characterization of electrochemical reactions: electrochemically-induced Raman spectroscopy. Chem Sci 2022; 13:10734-10742. [PMID: 36320697 PMCID: PMC9491093 DOI: 10.1039/d2sc01967a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 07/22/2022] [Indexed: 11/21/2022] Open
Abstract
Structural characterization of transient electrochemical species in the sub-millisecond time scale is the all-time wish of any electrochemist. Presently, common time resolution of structural spectro-electrochemical methods is about 0.1 seconds. Herein, a transient spectro-electrochemical Raman setup of easy implementation is described which allows sub-ms time resolution. The technique studies electrochemical processes by initiating the reaction with an electric potential (or current) pulse and analyses the product with a synchronized laser pulse of the modified Raman spectrometer. The approach was validated by studying a known redox driven isomerization of a Ru-based molecular switch grafted, as monolayer, on a SERS active Au microelectrode. Density-functional-theory calculations confirmed the spectral assignments to sub-ms transient species. This study paves the way to a new generation of time-resolved spectro-electrochemical techniques which will be of fundamental help in the development of next generation electrolizers, fuel cells and batteries. Structural characterization of transient electrochemical species in the sub-millisecond time scale is the all-time wish of any electrochemist.![]()
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Affiliation(s)
- Luca D'Amario
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Maria Bruna Stella
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Tomas Edvinsson
- Department of Materials Science and Engineering, Uppsala University, Box 35, 751 03 Uppsala, Sweden
| | - Maurizio Persico
- Department of Chemistry and Industrial Chemistry, University of Pisa, Via Moruzzi 13, 56124 Pisa, Italy
| | - Johannes Messinger
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
- Department of Chemistry, Chemical Biological Centre, Umeå University, 90187 Umeå, Sweden
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
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24
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Viola S, Roseby W, Santabarbara S, Nürnberg D, Assunção R, Dau H, Sellés J, Boussac A, Fantuzzi A, Rutherford AW. Impact of energy limitations on function and resilience in long-wavelength Photosystem II. eLife 2022; 11:79890. [PMID: 35852834 PMCID: PMC9439682 DOI: 10.7554/elife.79890] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 07/18/2022] [Indexed: 01/06/2023] Open
Abstract
Photosystem II (PSII) uses the energy from red light to split water and reduce quinone, an energy-demanding process based on chlorophyll a (Chl-a) photochemistry. Two types of cyanobacterial PSII can use chlorophyll d (Chl-d) and chlorophyll f (Chl-f) to perform the same reactions using lower energy, far-red light. PSII from Acaryochloris marina has Chl-d replacing all but one of its 35 Chl-a, while PSII from Chroococcidiopsis thermalis, a facultative far-red species, has just 4 Chl-f and 1 Chl-d and 30 Chl-a. From bioenergetic considerations, the far-red PSII were predicted to lose photochemical efficiency and/or resilience to photodamage. Here, we compare enzyme turnover efficiency, forward electron transfer, back-reactions and photodamage in Chl-f-PSII, Chl-d-PSII, and Chl-a-PSII. We show that: (i) all types of PSII have a comparable efficiency in enzyme turnover; (ii) the modified energy gaps on the acceptor side of Chl-d-PSII favour recombination via PD1+Phe- repopulation, leading to increased singlet oxygen production and greater sensitivity to high-light damage compared to Chl-a-PSII and Chl-f-PSII; (iii) the acceptor-side energy gaps in Chl-f-PSII are tuned to avoid harmful back reactions, favouring resilience to photodamage over efficiency of light usage. The results are explained by the differences in the redox tuning of the electron transfer cofactors Phe and QA and in the number and layout of the chlorophylls that share the excitation energy with the primary electron donor. PSII has adapted to lower energy in two distinct ways, each appropriate for its specific environment but with different functional penalties.
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Affiliation(s)
- Stefania Viola
- Department of Life Sciences, Imperial College LondonLondonUnited Kingdom
| | - William Roseby
- Department of Life Sciences, Imperial College LondonLondonUnited Kingdom
| | | | | | | | - Holger Dau
- Physics Department, Freie Universität BerlinBerlinGermany
| | - Julien Sellés
- Institut de Biologie Physico-Chimique, UMR CNRS 7141 and Sorbonne UniversitéParisFrance
| | - Alain Boussac
- Institut de Biologie Intégrative de la Cellule, UMR9198, CEA SaclayGif-Sur-YvetteFrance
| | - Andrea Fantuzzi
- Department of Life Sciences, Imperial College LondonLondonUnited Kingdom
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25
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Moghaddam NJ, Feizi H, Mohammadi MR, Bagheri R, Chernev P, Song Z, Dau H, Najafpour MM. A Chemical Evolution‐Like Method to Synthesize a Water‐Oxidizing Catalyst. ChemElectroChem 2021. [DOI: 10.1002/celc.202101105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Navid Jameei Moghaddam
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | - Hadi Feizi
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | | | - Robabeh Bagheri
- Surface Protection Research Group Surface Department Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences 519 Zhuangshi Road Ningbo 315201 China
| | - Petko Chernev
- Freie Universität Berlin Fachbereich Physik Arnimallee 14 14195 Berlin Germany
- Uppsala University Department of Chemistry – Ångströmlaboratoriet Lägerhyddsvägen 1 75120 Uppsala Sweden
| | - Zhenlun Song
- Surface Protection Research Group Surface Department Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences 519 Zhuangshi Road Ningbo 315201 China
| | - Holger Dau
- Freie Universität Berlin Fachbereich Physik Arnimallee 14 14195 Berlin Germany
| | - Mohammad Mahdi Najafpour
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
- Center of Climate Change and Global Warming Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
- Research Center for Basic Sciences & Modern Technologies (RBST) Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
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26
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Battistella B, Warm K, Cula B, Lu B, Hildebrandt P, Kuhlmann U, Dau H, Mebs S, Ray K. The influence of secondary interactions on the [Ni(O 2)] + mediated aldehyde oxidation reactions. J Inorg Biochem 2021; 227:111668. [PMID: 34923388 DOI: 10.1016/j.jinorgbio.2021.111668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 11/14/2021] [Accepted: 11/14/2021] [Indexed: 11/30/2022]
Abstract
A rate enhancement of one to two orders of magnitude can be obtained in the aldehyde deformylation reactions by replacing the -N(CH3) groups of [NiIII(O2)(Me4[12]aneN4)]+ (Me4[12]aneN4 = 1,4,7,10-tetramethyl-1,4,7,10-tetraazacyclododecane) and [NiIII(O2)(Me4[13]aneN4)]+ (Me4[13]aneN4 = 1,4,7,10-tetramethyl-1,4,7,10-tetraazacyclotridecane) complexes by -NH in [NiIII(O2)([12]aneN4)]+ (2; [12]aneN4 = 1,4,7,10-tetraazacyclododecane) and [NiIII(O2)([13]aneN4)]+ (4; [13]aneN4 = 1,4,7,10-tetraazacyclotridecane). Based on detailed spectroscopic, reaction-kinetics and theoretical investigations, the higher reactivities of 2 and 4 are attributed to the changes in the secondary-sphere interactions between the [NiIII(O2)]+ and [12]aneN4 or [13]aneN4 moieties, which open up an alternative electrophilic pathway for the aldehyde oxidation reaction. Identification of primary kinetic isotope effects on the reactivity and stability of 2 when the -NH groups of the [12]aneN4 ligand are deuterated may also suggest the presence of secondary interaction between the -NH groups of [12]aneN4 and [NiIII(O2)]+ moieties, although, such interactions are not obvious in the DFT calculated optimized structure at the employed level of theory.
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Affiliation(s)
- Beatrice Battistella
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Katrin Warm
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Beatrice Cula
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Bernd Lu
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Peter Hildebrandt
- Technische Universität Berlin, Institut für Chemie, Sekretariat PC 14, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Uwe Kuhlmann
- Technische Universität Berlin, Institut für Chemie, Sekretariat PC 14, Straße des 17. Juni 135, 10623 Berlin, Germany
| | - Holger Dau
- Freie Universität zu Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Stefan Mebs
- Freie Universität zu Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Kallol Ray
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, 12489 Berlin, Germany.
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27
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Jeoung JH, Rünger S, Haumann M, Neumann B, Klemke F, Davis V, Fischer A, Dau H, Wollenberger U, Dobbek H. Bimetallic Mn, Fe, Co, and Ni Sites in a Four-Helix Bundle Protein: Metal Binding, Structure, and Peroxide Activation. Inorg Chem 2021; 60:17498-17508. [PMID: 34757735 DOI: 10.1021/acs.inorgchem.1c01919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bimetallic active sites in enzymes catalyze small-molecule conversions that are among the top 10 challenges in chemistry. As different metal cofactors are typically incorporated in varying protein scaffolds, it is demanding to disentangle the individual contributions of the metal and the protein matrix to the activity. Here, we compared the structure, properties, and hydrogen peroxide reactivity of four homobimetallic cofactors (Mn(II)2, Fe(II)2, Co(II)2, Ni(II)2) that were reconstituted into a four-helix bundle protein. Reconstituted proteins were studied in solution and in crystals. All metals bind with high affinity and yield similar cofactor structures. Cofactor variants react with H2O2 but differ in their turnover rates, accumulated oxidation states, and trapped peroxide-bound intermediates. Varying the metal composition thus creates opportunities to tune the reactivity of the bimetallic cofactor and to study and functionalize reactive species.
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Affiliation(s)
- Jae-Hun Jeoung
- Department of Biology, Strukturbiologie/Biochemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Stefan Rünger
- Department of Biology, Strukturbiologie/Biochemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Michael Haumann
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Bettina Neumann
- Institute of Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany
| | - Friederike Klemke
- Department of Biology, Strukturbiologie/Biochemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Victoria Davis
- Institute for Inorganic and Analytical Chemistry (IAAC), Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany.,Freiburg Material Research Center (FMF), University of Freiburg, 79104 Freiburg, Germany.,Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79104 Freiburg, Germany.,Cluster of Excellence livMatS@FIT─Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79104 Freiburg, Germany
| | - Anna Fischer
- Institute for Inorganic and Analytical Chemistry (IAAC), Albert-Ludwigs-Universität Freiburg, 79104 Freiburg, Germany.,Freiburg Material Research Center (FMF), University of Freiburg, 79104 Freiburg, Germany.,Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79104 Freiburg, Germany.,Cluster of Excellence livMatS@FIT─Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, 79104 Freiburg, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Ulla Wollenberger
- Institute of Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany
| | - Holger Dobbek
- Department of Biology, Strukturbiologie/Biochemie, Humboldt-Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
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28
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Warm K, Tripodi G, Andris E, Mebs S, Kuhlmann U, Dau H, Hildebrandt P, Roithová J, Ray K. Spektroskopische Charakterisierung eines reaktiven [Cu
2
(μ‐OH)
2
]
2+
Intermediates in Cu/TEMPO‐katalysierten aeroben Alkoholoxidationen. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Katrin Warm
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | | | - Erik Andris
- Radboud University Heyendaalseweg 135 6525 AJ Nijmegen Niederlande
- Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovo náměstí 2 16610 Prague Czech Republic
| | - Stefan Mebs
- Institut für Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Deutschland
| | - Uwe Kuhlmann
- Institut für Chemie, Fakultät II Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Holger Dau
- Institut für Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Deutschland
| | - Peter Hildebrandt
- Institut für Chemie, Fakultät II Technische Universität Berlin Straße des 17. Juni 135 10623 Berlin Deutschland
| | - Jana Roithová
- Radboud University Heyendaalseweg 135 6525 AJ Nijmegen Niederlande
| | - Kallol Ray
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Deutschland
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29
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Warm K, Tripodi G, Andris E, Mebs S, Kuhlmann U, Dau H, Hildebrandt P, Roithová J, Ray K. Spectroscopic Characterization of a Reactive [Cu 2 (μ-OH) 2 ] 2+ Intermediate in Cu/TEMPO Catalyzed Aerobic Alcohol Oxidation Reaction. Angew Chem Int Ed Engl 2021; 60:23018-23024. [PMID: 34309168 PMCID: PMC8518518 DOI: 10.1002/anie.202108442] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/16/2021] [Indexed: 12/23/2022]
Abstract
CuI/TEMPO (TEMPO=2,2,6,6‐tetramethylpiperidinyloxyl) catalyst systems are versatile catalysts for aerobic alcohol oxidation reactions to selectively yield aldehydes. However, several aspects of the mechanism are yet unresolved, mainly because of the lack of identification of any reactive intermediates. Herein, we report the synthesis and characterization of a dinuclear [L12Cu2]2+ complex 1, which in presence of TEMPO can couple the catalytic 4 H+/4 e− reduction of O2 to water to the oxidation of benzylic and aliphatic alcohols. The mechanisms of the O2‐reduction and alcohol oxidation reactions have been clarified by the spectroscopic detection of the reactive intermediates in the gas and condensed phases, as well as by kinetic studies on each step in the catalytic cycles. Bis(μ‐oxo)dicopper(III) (2) and bis(μ‐hydroxo)dicopper(II) species 3 are shown as viable reactants in oxidation catalysis. The present study provides deep mechanistic insight into the aerobic oxidation of alcohols that should serve as a valuable foundation for ongoing efforts dedicated towards the understanding of transition‐metal catalysts involving redox‐active organic cocatalysts.
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Affiliation(s)
- Katrin Warm
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Guilherme Tripodi
- Radboud University, Heyendaalseweg 135, 6525, AJ, Nijmegen, Netherlands
| | - Erik Andris
- Radboud University, Heyendaalseweg 135, 6525, AJ, Nijmegen, Netherlands.,Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Prague, Czech Republic
| | - Stefan Mebs
- Institut für Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Uwe Kuhlmann
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Holger Dau
- Institut für Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Peter Hildebrandt
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Jana Roithová
- Radboud University, Heyendaalseweg 135, 6525, AJ, Nijmegen, Netherlands
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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30
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Malik DD, Chandra A, Seo MS, Lee YM, Farquhar ER, Mebs S, Dau H, Ray K, Nam W. Formation of cobalt-oxygen intermediates by dioxygen activation at a mononuclear nonheme cobalt(ii) center. Dalton Trans 2021; 50:11889-11898. [PMID: 34373886 PMCID: PMC8499697 DOI: 10.1039/d1dt01996a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mononuclear nonheme cobalt(ii) complex, [(TMG3tren)CoII(OTf)](OTf) (1), activates dioxygen in the presence of hydrogen atom donor substrates, such as tetrahydrofuran and cyclohexene, resulting in the generation of a cobalt(ii)-alkylperoxide intermediate (2), which then converts to the previously reported cobalt(iv)-oxo complex, [(TMG3tren)CoIV(O)]2+-(Sc(OTf)3)n (3), in >90% yield upon addition of a redox-inactive metal ion, Sc(OTf)3. Intermediates 2 and 3 represent the cobalt analogues of the proposed iron(ii)-alkylperoxide precursor that converts to an iron(iv)-oxo intermediate via O-O bond heterolysis in pterin-dependent nonheme iron oxygenases. In reactivity studies, 2 shows an amphoteric reactivity in electrophilic and nucleophilic reactions, whereas 3 is an electrophilic oxidant. To the best of our knowledge, the present study reports the first example showing the generation of cobalt-oxygen intermediates by activating dioxygen at a cobalt(ii) center and the reactivities of the cobalt-oxygen intermediates in oxidation reaction.
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Affiliation(s)
- Deesha D Malik
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.
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31
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Dau H, Ivanov B, Shevela D, Armstrong WH, Govindjee G. Three overlooked photosynthesis papers of Otto Warburg (1883-1970), published in the 1940s in German and in Russian, on light-driven water oxidation coupled to benzoquinone reduction. Photosynth Res 2021; 149:259-264. [PMID: 34236567 DOI: 10.1007/s11120-021-00858-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 06/14/2021] [Indexed: 06/13/2023]
Abstract
After a brief background on Otto Heinrich Warburg (1883-1970), and some of his selected research, we provide highlights, in English, of three of his papers in the 1940s-unknown to many as they were not originally published in English. They are: two brief reports on Photosynthesis, with Wilhelm Lüttgens, originally published in German, in 1944: 'Experiment on assimilation of carbonic acid'; and 'Further experiments on carbon dioxide assimilation'. This is followed by a regular paper, originally published in Russian, in 1946: 'The photochemical reduction of quinone in green granules'. Since the 1944 reports discussed here are very short, their translations are included in the Appendix, but that of the 1946 paper is provided in the Supplementary Material. In all three reports, Warburg provides the first evidence for and elaborates on light-driven water oxidation coupled to reduction of added benzoquinone. These largely overlooked studies of Warburg are in stark contrast to Warburg's well-known error in assigning the origin of the photosynthetically formed dioxygen to carbonate.
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Affiliation(s)
- Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Boris Ivanov
- Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Russia, 142292
| | - Dmitry Shevela
- Department of Chemistry, Umeå University, 90187, Umeå, Sweden
| | | | - Govindjee Govindjee
- Department of Plant Biology, Department of Biochemistry and Center of Biophysics & Quantitative Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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Hausmann JN, Beltrán-Suito R, Mebs S, Hlukhyy V, Fässler TF, Dau H, Driess M, Menezes PW. Evolving Highly Active Oxidic Iron(III) Phase from Corrosion of Intermetallic Iron Silicide to Master Efficient Electrocatalytic Water Oxidation and Selective Oxygenation of 5-Hydroxymethylfurfural. Adv Mater 2021; 33:e2008823. [PMID: 34048605 DOI: 10.1002/adma.202008823] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/01/2021] [Indexed: 06/12/2023]
Abstract
In a green energy economy, electrocatalysis is essential for chemical energy conversion and to produce value added chemicals from regenerative resources. To be widely applicable, an electrocatalyst should comprise the Earth's crust's most abundant elements. The most abundant 3d metal, iron, with its multiple accessible redox states has been manifold applied in chemocatalytic processes. However, due to the low conductivity of FeIII Ox Hy phases, its applicability for targeted electrocatalytic oxidation reactions such as water oxidation is still limited. Herein, it is shown that iron incorporated in conductive intermetallic iron silicide (FeSi) can be employed to meet this challenge. In contrast to silicon-poor iron-silicon alloys, intermetallic FeSi possesses an ordered structure with a peculiar bonding situation including covalent and ionic contributions together with conducting electrons. Using in situ X-ray absorption and Raman spectroscopy, it could be demonstrated that, under the applied corrosive alkaline conditions, the FeSi partly forms a unique, oxidic iron(III) phase consisting of edge and corner sharing [FeO6 ] octahedra together with oxidized silicon species. This phase is capable of driving the oxyge evolution reaction (OER) at high efficiency under ambient and industrially relevant conditions (500 mA cm-2 at 1.50 ± 0.025 VRHE and 65 °C) and to selectively oxygenate 5-hydroxymethylfurfural (HMF).
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Affiliation(s)
- J Niklas Hausmann
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
| | - Rodrigo Beltrán-Suito
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
| | - Stefan Mebs
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Viktor Hlukhyy
- Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Thomas F Fässler
- Department of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Holger Dau
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technical University of Berlin, Straße des 17 Juni 135. Sekr. C2, 10623, Berlin, Germany
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Deutscher J, Gerschel P, Warm K, Kuhlmann U, Mebs S, Haumann M, Dau H, Hildebrandt P, Apfel UP, Ray K. A bioinspired oxoiron(IV) motif supported on a N 2S 2 macrocyclic ligand. Chem Commun (Camb) 2021; 57:2947-2950. [PMID: 33621306 DOI: 10.1039/d1cc00250c] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A mononuclear oxoiron(iv) complex 1-trans bearing two equatorial sulfur ligations is synthesized and characterized as an active-site model of the elusive sulfur-ligated FeIV[double bond, length as m-dash]O intermediates in non-heme iron oxygenases. The introduction of sulfur ligands weakens the Fe[double bond, length as m-dash]O bond and enhances the oxidative reactivity of the FeIV[double bond, length as m-dash]O unit with a diminished deuterium kinetic isotope effect, thereby providing a compelling rationale for nature's use of the cis-thiolate ligated oxoiron(iv) motif in key metabolic transformations.
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Affiliation(s)
- Jennifer Deutscher
- Institut für Chemie Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany.
| | - Philipp Gerschel
- Anorganische Chemie 1 Ruhr-Universität Bochum, Universitätsstraße 150, 44780, Bochum, Germany
| | - Katrin Warm
- Institut für Chemie Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany.
| | - Uwe Kuhlmann
- Institut für Chemie Technische, Universität Berlin, Fakultät II Straße des 17, Juni 135, 10623, Berlin, Germany
| | - Stefan Mebs
- Institut für Physik Freie, Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Michael Haumann
- Institut für Physik Freie, Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Holger Dau
- Institut für Physik Freie, Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Peter Hildebrandt
- Institut für Chemie Technische, Universität Berlin, Fakultät II Straße des 17, Juni 135, 10623, Berlin, Germany
| | - Ulf-Peter Apfel
- Anorganische Chemie 1 Ruhr-Universität Bochum, Universitätsstraße 150, 44780, Bochum, Germany and Department of Electrosynthesis, Fraunhofer UMSICHT, Osterfelder Str. 3, 46047 Oberhausen, Germany
| | - Kallol Ray
- Institut für Chemie Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489, Berlin, Germany.
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Warm K, Paskin A, Kuhlmann U, Bill E, Swart M, Haumann M, Dau H, Hildebrandt P, Ray K. A Pseudotetrahedral Terminal Oxoiron(IV) Complex: Mechanistic Promiscuity in C-H Bond Oxidation Reactions. Angew Chem Int Ed Engl 2021; 60:6752-6756. [PMID: 33348460 PMCID: PMC7985879 DOI: 10.1002/anie.202015896] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Indexed: 11/12/2022]
Abstract
S=2 oxoiron(IV) species act as reactive intermediates in the catalytic cycle of nonheme iron oxygenases. The few available synthetic S=2 FeIV =O complexes known to date are often limited to trigonal bipyramidal and very rarely to octahedral geometries. Herein we describe the generation and characterization of an S=2 pseudotetrahedral FeIV =O complex 2 supported by the sterically demanding 1,4,7-tri-tert-butyl-1,4,7-triazacyclononane ligand. Complex 2 is a very potent oxidant in hydrogen atom abstraction (HAA) reactions with large non-classical deuterium kinetic isotope effects, suggesting hydrogen tunneling contributions. For sterically encumbered substrates, direct HAA is impeded and an alternative oxidative asynchronous proton-coupled electron transfer mechanism prevails, which is unique within the nonheme oxoiron community. The high reactivity and the similar spectroscopic parameters make 2 one of the best electronic and functional models for a biological oxoiron(IV) intermediate of taurine dioxygenase (TauD-J).
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Affiliation(s)
- Katrin Warm
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Str. 212489BerlinGermany
| | - Alice Paskin
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Str. 212489BerlinGermany
| | - Uwe Kuhlmann
- Institut für ChemieTechnische Universität Berlin, Fakultät IIStraße des 17. Juni 13510623BerlinGermany
| | - Eckhard Bill
- Max-Planck-Institut für Chemische Energiekonversion (CEC)Stiftstraße 34–3645470MülheimGermany
| | - Marcel Swart
- Institut de Química Computacional i CatàlisiUniversitat de GironaCampus Montilivi (Ciències)Maria Aurèlia Capmany i Farnés, 6917003GironaSpain
- ICREAPg. Lluís Companys 2308010BarcelonaSpain
| | - Michael Haumann
- Institut für PhysikFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Holger Dau
- Institut für PhysikFreie Universität BerlinArnimallee 1414195BerlinGermany
| | - Peter Hildebrandt
- Institut für ChemieTechnische Universität Berlin, Fakultät IIStraße des 17. Juni 13510623BerlinGermany
| | - Kallol Ray
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Str. 212489BerlinGermany
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Warm K, Paskin A, Kuhlmann U, Bill E, Swart M, Haumann M, Dau H, Hildebrandt P, Ray K. A Pseudotetrahedral Terminal Oxoiron(IV) Complex: Mechanistic Promiscuity in C−H Bond Oxidation Reactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Katrin Warm
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Alice Paskin
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Uwe Kuhlmann
- Institut für Chemie Technische Universität Berlin, Fakultät II Straße des 17. Juni 135 10623 Berlin Germany
| | - Eckhard Bill
- Max-Planck-Institut für Chemische Energiekonversion (CEC) Stiftstraße 34–36 45470 Mülheim Germany
| | - Marcel Swart
- Institut de Química Computacional i Catàlisi Universitat de Girona Campus Montilivi (Ciències) Maria Aurèlia Capmany i Farnés, 69 17003 Girona Spain
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
| | - Michael Haumann
- Institut für Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Holger Dau
- Institut für Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Peter Hildebrandt
- Institut für Chemie Technische Universität Berlin, Fakultät II Straße des 17. Juni 135 10623 Berlin Germany
| | - Kallol Ray
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Str. 2 12489 Berlin Germany
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36
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Menezes PW, Walter C, Chakraborty B, Hausmann JN, Zaharieva I, Frick A, von Hauff E, Dau H, Driess M. Combination of Highly Efficient Electrocatalytic Water Oxidation with Selective Oxygenation of Organic Substrates using Manganese Borophosphates. Adv Mater 2021; 33:e2004098. [PMID: 33491823 DOI: 10.1002/adma.202004098] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 12/09/2020] [Indexed: 06/12/2023]
Abstract
One of the key catalytic reactions for life on earth, the oxidation of water to molecular oxygen, occurs in the oxygen-evolving complex of the photosystem II (PSII) mediated by a manganese-containing cluster. Considerable efforts in this research area embrace the development of efficient artificial manganese-based catalysts for the oxygen evolution reaction (OER). Using artificial OER catalysts for selective oxygenation of organic substrates to produce value-added chemicals is a worthwhile objective. However, unsatisfying catalytic performance and poor stability have been a fundamental bottleneck in the field of artificial PSII analogs. Herein, for the first time, a manganese-based anode material is developed and paired up for combining electrocatalytic water oxidation and selective oxygenations of organics delivering the highest efficiency reported to date. This can be achieved by employing helical manganese borophosphates, representing a new class of materials. The uniquely high catalytic activity and durability (over 5 months) of the latter precursors in alkaline media are attributed to its unexpected surface transformation into an amorphous MnOx phase with a birnessite-like short-range order and surface-stabilized MnIII sites under extended electrical bias, as unequivocally demonstrated by a combination of in situ Raman and quasi in situ X-ray absorption spectroscopy as well as ex situ methods.
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Affiliation(s)
- Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, Berlin, 10623, Germany
| | - Carsten Walter
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, Berlin, 10623, Germany
| | - Biswarup Chakraborty
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, Berlin, 10623, Germany
| | - Jan Niklas Hausmann
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, Berlin, 10623, Germany
| | - Ivelina Zaharieva
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Achidi Frick
- Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, Amsterdam, 1081 HV, The Netherlands
| | - Elizabeth von Hauff
- Department of Physics and Astronomy, Vrije Universiteit Amsterdam, De Boelelaan 1081, Amsterdam, 1081 HV, The Netherlands
| | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, Straße des 17 Juni 135, Sekr. C2, Berlin, 10623, Germany
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Wang X, Klingan K, Klingenhof M, Möller T, Ferreira de Araújo J, Martens I, Bagger A, Jiang S, Rossmeisl J, Dau H, Strasser P. Morphology and mechanism of highly selective Cu(II) oxide nanosheet catalysts for carbon dioxide electroreduction. Nat Commun 2021; 12:794. [PMID: 33542208 PMCID: PMC7862240 DOI: 10.1038/s41467-021-20961-7] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 01/03/2021] [Indexed: 11/18/2022] Open
Abstract
Cu oxides catalyze the electrochemical carbon dioxide reduction reaction (CO2RR) to hydrocarbons and oxygenates with favorable selectivity. Among them, the shape-controlled Cu oxide cubes have been most widely studied. In contrast, we report on novel 2-dimensional (2D) Cu(II) oxide nanosheet (CuO NS) catalysts with high C2+ products, selectivities (> 400 mA cm-2) in gas diffusion electrodes (GDE) at industrially relevant currents and neutral pH. Under applied bias, the (001)-orientated CuO NS slowly evolve into highly branched, metallic Cu0 dendrites that appear as a general dominant morphology under electrolyte flow conditions, as attested by operando X-ray absorption spectroscopy and in situ electrochemical transmission electron microscopy (TEM). Millisecond-resolved differential electrochemical mass spectrometry (DEMS) track a previously unavailable set of product onset potentials. While the close mechanistic relation between CO and C2H4 was thereby confirmed, the DEMS data help uncover an unexpected mechanistic link between CH4 and ethanol. We demonstrate evidence that adsorbed methyl species, *CH3, serve as common intermediates of both CH3H and CH3CH2OH and possibly of other CH3-R products via a previously overlooked pathway at (110) steps adjacent to (100) terraces at larger overpotentials. Our mechanistic conclusions challenge and refine our current mechanistic understanding of the CO2 electrolysis on Cu catalysts.
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Affiliation(s)
- Xingli Wang
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Katharina Klingan
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Malte Klingenhof
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Tim Möller
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Jorge Ferreira de Araújo
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany
| | - Isaac Martens
- European Synchrotron Radiation Facility (ESRF), 38000, Grenoble, France
| | - Alexander Bagger
- Department of Chemistry, University of Copenhagen, Copenhagen, 2100, Denmark
| | - Shan Jiang
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Jan Rossmeisl
- Department of Chemistry, University of Copenhagen, Copenhagen, 2100, Denmark
| | - Holger Dau
- Department of Physics, Free University of Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Peter Strasser
- Department of Chemistry, Chemical Engineering Division, Technical University Berlin, Straße des 17. June 124, 10623, Berlin, Germany.
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Abdi Z, Bagheri R, Reza Mohammadi M, Song Z, Görlin M, Dau H, Najafpour MM. Cover Feature: In Situ Synthesis of Manganese Oxide as an Oxygen‐Evolving Catalyst: A New Strategy (Chem. Eur. J. 4/2021). Chemistry 2021. [DOI: 10.1002/chem.202003731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zahra Abdi
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | - Robabeh Bagheri
- School of Physical Science and Technology College of Energy Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province Soochow University Suzhou 215006 P. R. China
| | | | - Zhenlun Song
- Surface Protection Research Group, Surface Department Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences 519 Zhuangshi Road Ningbo 315201 P. R. China
| | - Mikaela Görlin
- Department of Chemistry Ångström Laboratory Uppsala University Box 538 75121 Uppsala Sweden
| | - Holger Dau
- Fachbereich Physik Freie Universität Berlin Arnimallee 14 14195 Berlin Germany
| | - Mohammad Mahdi Najafpour
- Department of Chemistry Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
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Chernev P, Fischer S, Hoffmann J, Oliver N, Assunção R, Yu B, Burnap RL, Zaharieva I, Nürnberg DJ, Haumann M, Dau H. Publisher Correction: Light-driven formation of manganese oxide by today's photosystem II supports evolutionarily ancient manganese-oxidizing photosynthesis. Nat Commun 2021; 12:419. [PMID: 33436628 PMCID: PMC7804171 DOI: 10.1038/s41467-020-20868-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Petko Chernev
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.,Department of Chemistry - Ångström Laboratory, Molecular Biomimetics, Uppsala University, Lägerhyddsvägen 1, 75120, Uppsala, Sweden
| | - Sophie Fischer
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Jutta Hoffmann
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Nicholas Oliver
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Ricardo Assunção
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Boram Yu
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Robert L Burnap
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, 74078-4034, USA
| | - Ivelina Zaharieva
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Dennis J Nürnberg
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Michael Haumann
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Holger Dau
- Physics Department, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany.
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Mäusle SM, Abzaliyeva A, Greife P, Simon PS, Perez R, Zilliges Y, Dau H. Activation energies for two steps in the S 2→ S 3 transition of photosynthetic water oxidation from time-resolved single-frequency infrared spectroscopy. J Chem Phys 2020; 153:215101. [PMID: 33291916 DOI: 10.1063/5.0027995] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The mechanism of water oxidation by the Photosystem II (PSII) protein-cofactor complex is of high interest, but specifically, the crucial coupling of protonation dynamics to electron transfer (ET) and dioxygen chemistry remains insufficiently understood. We drove spinach-PSII membranes by nanosecond-laser flashes synchronously through the water-oxidation cycle and traced the PSII processes by time-resolved single-frequency infrared (IR) spectroscopy in the spectral range of symmetric carboxylate vibrations of protein side chains. After the collection of IR-transients from 100 ns to 1 s, we analyzed the proton-removal step in the S2 ⇒ S3 transition, which precedes the ET that oxidizes the Mn4CaOx-cluster. Around 1400 cm-1, pronounced changes in the IR-transients reflect this pre-ET process (∼40 µs at 20 °C) and the ET step (∼300 µs at 20 °C). For transients collected at various temperatures, unconstrained multi-exponential simulations did not provide a coherent set of time constants, but constraining the ET time constants to previously determined values solved the parameter correlation problem and resulted in an exceptionally high activation energy of 540 ± 30 meV for the pre-ET step. We assign the pre-ET step to deprotonation of a group that is re-protonated by accepting a proton from the substrate-water, which binds concurrently with the ET step. The analyzed IR-transients disfavor carboxylic-acid deprotonation in the pre-ET step. Temperature-dependent amplitudes suggest thermal equilibria that determine how strongly the proton-removal step is reflected in the IR-transients. Unexpectedly, the proton-removal step is only weakly reflected in the 1400 cm-1 transients of PSII core complexes of a thermophilic cyanobacterium (T. elongatus).
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Affiliation(s)
- Sarah M Mäusle
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Aiganym Abzaliyeva
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Paul Greife
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Philipp S Simon
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Rebeca Perez
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Yvonne Zilliges
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
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Mousazade Y, Mohammadi MR, Bagheri R, Bikas R, Chernev P, Song Z, Lis T, Siczek M, Noshiranzadeh N, Mebs S, Dau H, Zaharieva I, Najafpour MM. A synthetic manganese-calcium cluster similar to the catalyst of Photosystem II: challenges for biomimetic water oxidation. Dalton Trans 2020; 49:5597-5605. [PMID: 32282002 DOI: 10.1039/d0dt00536c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report the synthesis, characterization, crystal structure, density functional theory calculations, and water-oxidizing activity of a pivalate Mn-Ca cluster. All of the manganese atoms in the cluster are Mn(iv) ions and have a distorted MnO6 octahedral geometry. Three Mn(iv) ions together with a Ca(ii) ion and four-oxido groups form a cubic Mn3CaO4 unit which is similar to the Mn3CaO4 cluster in the water-oxidizing complex of Photosystem II. Using scanning electron microscopy, transmission electron microscopy, energy dispersive spectrometry, extended X-ray absorption spectroscopy, chronoamperometry, and electrochemical methods, a conversion into nano-sized Mn-oxide is observed for the cluster in the water-oxidation reaction.
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Affiliation(s)
- Younes Mousazade
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran.
| | | | - Robabeh Bagheri
- Surface Protection Research Group, Surface Department, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 519 Zhuangshi Road, Ningbo 315201, China
| | - Rahman Bikas
- Department of Chemistry, Faculty of Science, Imam Khomeini International University, 34148-96818, Qazvin, Iran.
| | - Petko Chernev
- Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany and Uppsala University, Department of Chemistry - Ångströmlaboratoriet, Lägerhyddsvägen 1, 75120 Uppsala, Sweden
| | - Zhenlun Song
- Surface Protection Research Group, Surface Department, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 519 Zhuangshi Road, Ningbo 315201, China
| | - Tadeusz Lis
- Faculty of Chemistry, University of Wrocław, 14. Joliot-Curie, 50-383, Wrocław, Poland
| | - Milosz Siczek
- Faculty of Chemistry, University of Wrocław, 14. Joliot-Curie, 50-383, Wrocław, Poland
| | - Nader Noshiranzadeh
- Department of Chemistry, Faculty of Science, University of Zanjan, 45371-38791 Zanjan, Iran
| | - Stefan Mebs
- Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Holger Dau
- Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Ivelina Zaharieva
- Freie Universität Berlin, Fachbereich Physik, Arnimallee 14, 14195 Berlin, Germany
| | - Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran. and Center of Climate Change and Global Warming, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran and Research Center for Basic Sciences & Modern Technologies (RBST), Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
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42
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Abdi Z, Bagheri R, Reza Mohammadi M, Song Z, Görlin M, Dau H, Najafpour MM. In Situ Synthesis of Manganese Oxide as an Oxygen-Evolving Catalyst: A New Strategy. Chemistry 2020; 27:1330-1336. [PMID: 32716557 DOI: 10.1002/chem.202002942] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/21/2020] [Indexed: 11/11/2022]
Abstract
All studies on oxygen-evolution reaction by Mn oxides in the presence of cerium(IV) ammonium nitrate (CAN) have been so far carried out by synthesizing Mn oxides in the first step. And then, followed by the investigation of the Mn oxides in the presence of oxidants for oxygen-evolution reaction (OER). This paper presents a case study of a new and promising strategy for in situ catalyst synthesis by the adding MnII to either CAN or KMnO4 /CAN solution, resulting in the formation of Mn-based catalysts for OER. The catalysts were characterized by scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray absorption spectroscopy, and X-ray photoelectron spectroscopy. Both compounds contained nano-sized particles that catalyzed OER in the presence of CAN. The turnover frequencies for both catalysts were 0.02 (mmol O 2 /molMn ⋅s).
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Affiliation(s)
- Zahra Abdi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Robabeh Bagheri
- School of Physical Science and Technology, College of Energy, Soochow Institute for Energy and Materials Innovations and, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215006, P. R. China
| | | | - Zhenlun Song
- Surface Protection Research Group, Surface Department, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 519 Zhuangshi Road, Ningbo, 315201, P. R. China
| | - Mikaela Görlin
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 538, 75121, Uppsala, Sweden
| | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
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43
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Beltrán-Suito R, Forstner V, Hausmann JN, Mebs S, Schmidt J, Zaharieva I, Laun K, Zebger I, Dau H, Menezes PW, Driess M. A soft molecular 2Fe-2As precursor approach to the synthesis of nanostructured FeAs for efficient electrocatalytic water oxidation. Chem Sci 2020; 11:11834-11842. [PMID: 34123210 PMCID: PMC8162750 DOI: 10.1039/d0sc04384b] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Accepted: 10/07/2020] [Indexed: 12/03/2022] Open
Abstract
An unprecedented molecular 2Fe-2As precursor complex was synthesized and transformed under soft reaction conditions to produce an active and long-term stable nanocrystalline FeAs material for electrocatalytic water oxidation in alkaline media. The 2Fe2As-centred β-diketiminato complex, having an unusual planar Fe2As2 core structure, results from the salt-metathesis reaction of the corresponding β-diketiminato FeIICl complex and the AsCO- (arsaethynolate) anion as the monoanionic As- source. The as-prepared FeAs phase produced from the precursor has been electrophoretically deposited on conductive electrode substrates and shown to act as a electro(pre)catalyst for the oxygen evolution reaction (OER). The deposited FeAs undergoes corrosion under the severe anodic alkaline conditions which causes extensive dissolution of As into the electrolyte forming finally an active two-line ferrihydrite phase (Fe2O3(H2O) x ). Importantly, the dissolved As in the electrolyte can be fully recaptured (electro-deposited) at the counter electrode making the complete process eco-conscious. The results represent a new and facile entry to unexplored nanostructured transition-metal arsenides and their utilization for high-performance OER electrocatalysis, which are also known to be magnificent high-temperature superconductors.
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Affiliation(s)
- Rodrigo Beltrán-Suito
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - Viktoria Forstner
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - J Niklas Hausmann
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - Stefan Mebs
- Fachbereich Physik, Freie Universität Berlin Arnimallee 14 Berlin 14195 Germany
| | - Johannes Schmidt
- Department of Chemistry: Functional Materials, Technische Universität Berlin Hardenbergstraße 40 Berlin 10623 Germany
| | - Ivelina Zaharieva
- Fachbereich Physik, Freie Universität Berlin Arnimallee 14 Berlin 14195 Germany
| | - Konstantin Laun
- Institut für Chemie, Max-Volmar-Laboratorium für Biophysikalische Chemie, Technische Universität Berlin Straße des 17 Juni 135 Berlin 10623 Germany
| | - Ingo Zebger
- Institut für Chemie, Max-Volmar-Laboratorium für Biophysikalische Chemie, Technische Universität Berlin Straße des 17 Juni 135 Berlin 10623 Germany
| | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin Arnimallee 14 Berlin 14195 Germany
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin Straße des 17 Juni 135, Sekr. C2 10623 Berlin Germany
| | - 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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Mousazade Y, Mohammadi MR, Chernev P, Bagheri R, Song Z, Dau H, Najafpour MM. Revisiting Metal–Organic Frameworks for Oxygen Evolution: A Case Study. Inorg Chem 2020; 59:15335-15342. [DOI: 10.1021/acs.inorgchem.0c02305] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Younes Mousazade
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 45137-66731 Zanjan, Iran
| | | | - Petko Chernev
- Department of Chemistry − Ångströmlaboratoriet, Uppsala University, Lägerhyddsvägen 1, 75120 Uppsala, Sweden
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Robabeh Bagheri
- School of Physical Science and Technology, College of Energy, Soochow Institute for Energy and Materials Innovations and Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou 215006, China
| | - Zhenlun Song
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), 45137-66731 Zanjan, Iran
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Mohammadi MR, Loos S, Chernev P, Pasquini C, Zaharieva I, González-Flores D, Kubella P, Klingan K, Smith RDL, Dau H. Exploring the Limits of Self-Repair in Cobalt Oxide Films for Electrocatalytic Water Oxidation. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01944] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | - Stefan Loos
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Petko Chernev
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Chiara Pasquini
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Ivelina Zaharieva
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Diego González-Flores
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Paul Kubella
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Katharina Klingan
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
| | - Rodney D. L. Smith
- Department of Chemistry, University of Waterloo, 200 University Ave. W, Waterloo, Ontario N2L 3G1,Canada
| | - Holger Dau
- Department for Experimental Physics, Freie Universität Berlin, Arnimallee 14, D-14195 Berlin, Germany
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Gerland L, Friedrich D, Hopf L, Donovan EJ, Wallmann A, Erdmann N, Diehl A, Bommer M, Buzar K, Ibrahim M, Schmieder P, Dobbek H, Zouni A, Bondar A, Dau H, Oschkinat H. Front Cover: pH‐Dependent Protonation of Surface Carboxylate Groups in PsbO Enables Local Buffering and Triggers Structural Changes (ChemBioChem 11/2020). Chembiochem 2020. [DOI: 10.1002/cbic.202000274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lisa Gerland
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
- Freie Universität BerlinDepartment of Biology, Chemistry and Pharmacy Thielallee 63 14195 Berlin Germany
| | - Daniel Friedrich
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
- Freie Universität BerlinDepartment of Biology, Chemistry and Pharmacy Thielallee 63 14195 Berlin Germany
| | - Linus Hopf
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
- Freie Universität BerlinDepartment of Biology, Chemistry and Pharmacy Thielallee 63 14195 Berlin Germany
| | - Eavan J. Donovan
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
| | - Arndt Wallmann
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
| | - Natalja Erdmann
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
| | - Anne Diehl
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
| | - Martin Bommer
- Max-Delbrück-Centrum für Molekulare Medizin Robert-Rössle-Strasse 10 13125 Berlin Germany
| | - Krzysztof Buzar
- Freie Universität BerlinDepartment of Physics, Theoretical Molecular Biophysics Arnimallee 14 14195 Berlin Germany
| | - Mohamed Ibrahim
- Humboldt-Universität zu BerlinInstitute of Biology Philippstrasse 13 10099 Berlin Germany
| | - Peter Schmieder
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
| | - Holger Dobbek
- Humboldt-Universität zu BerlinInstitute of Biology Philippstrasse 13 10099 Berlin Germany
| | - Athina Zouni
- Humboldt-Universität zu BerlinInstitute of Biology Philippstrasse 13 10099 Berlin Germany
| | - Ana‐Nicoleta Bondar
- Freie Universität BerlinDepartment of Physics, Theoretical Molecular Biophysics Arnimallee 14 14195 Berlin Germany
| | - Holger Dau
- Freie Universität BerlinDepartment of Physics, Biophysics and Photosynthesis Arnimallee 14 14195 Berlin Germany
| | - Hartmut Oschkinat
- Leibniz-Forschungsinstitut für Molekulare PharmakologieDepartment of NMR-Supported Structural Biology Robert-Rössle-Strasse 10 13125 Berlin Germany
- Freie Universität BerlinDepartment of Biology, Chemistry and Pharmacy Thielallee 63 14195 Berlin Germany
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Pasquini C, D'Amario L, Zaharieva I, Dau H. Operando Raman spectroscopy tracks oxidation-state changes in an amorphous Co oxide material for electrocatalysis of the oxygen evolution reaction. J Chem Phys 2020; 152:194202. [PMID: 33687254 DOI: 10.1063/5.0006306] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Transition metal oxides are of high interest in both energy storage (batteries) and production of non-fossil fuels by (photo)electrocatalysis. Their functionally crucial charge (oxidation state) changes and electrocatalytic properties are best investigated under electrochemical operation conditions. We established operando Raman spectroscopy for investigation of the atomic structure and oxidation state of a non-crystalline, hydrated, and phosphate-containing Co oxide material (CoCat), which is an electrocatalyst for the oxygen evolution reaction (OER) at neutral pH and is structurally similar to LiCoO2 of batteries. Raman spectra were collected at various sub-catalytic and catalytic electric potentials. 2H labeling suggests Co oxidation coupled to Co-OH deprotonation at catalytic potentials. 18O labeling supports O-O bond formation starting from terminally coordinated oxygen species. Two broad bands around 877 cm-1 and 1077 cm-1 are assigned to CoCat-internal H2PO4 -. Raman peaks corresponding to terminal oxide (Co=O) or reactive oxygen species were not detectable; 1000-1200 cm-1 bands were instead assigned to two-phonon Raman scattering. At an increasingly positive potential, the intensity of the Raman bands decreased, which is unexpected and explained by self-absorption relating to CoCat electrochromism. A red-shift of the Co-O Raman bands with increasing potentials was described by four Gaussian bands of potential-dependent amplitudes. By linear combination of Raman band amplitudes, we can follow individually the Co(2+/3+) and Co(3+/4+) redox transitions, whereas previously published x-ray absorption spectroscopy analysis could determine only the averaged Co oxidation state. Our results show how electrochemical operando Raman spectroscopy can be employed as a potent analytical tool in mechanistic investigations on OER catalysis.
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Affiliation(s)
- Chiara Pasquini
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Luca D'Amario
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Ivelina Zaharieva
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin, Germany
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49
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Chandra A, Mebs S, Kundu S, Kuhlmann U, Hildebrandt P, Dau H, Ray K. Catalytic dioxygen reduction mediated by a tetranuclear cobalt complex supported on a stannoxane core. Dalton Trans 2020; 49:6065-6073. [PMID: 32319492 DOI: 10.1039/d0dt00475h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The synthesis, spectroscopic characterization (infrared, electron paramagnetic resonance and X-ray absorption spectroscopies) and density functional theoretical calculations of a tetranuclear cobalt complex Co4L1 involving a nonheme ligand system, L1, supported on a stannoxane core are reported. Co4L1, similar to the previously reported hexanuclear cobalt complex Co6L2, shows a unique ability to catalyze dioxygen (O2) reduction, where product selectivity can be changed from a preferential 4e-/4H+ dioxygen-reduction (to water) to a 2e-/2H+ process (to hydrogen peroxide) only by increasing the temperature from -50 to 30 °C. Detailed mechanistic insights were obtained on the basis of kinetic studies on the overall catalytic reaction as well as by low-temperature spectroscopic (UV-Vis, resonance Raman and X-ray absorption spectroscopies) trapping of the end-on μ-1,2-peroxodicobalt(iii) intermediate 1. The Co4L1- and Co6L2-mediated O2-reduction reactions exhibit different reaction kinetics, and yield different ratios of the 2e-/2H+ and 4e-/4H+ products at -50 °C, which can be attributed to the different stabilities of the μ-1,2-peroxodicobalt(iii) intermediates formed upon dioxygen activation in the two cases. The deep mechanistic insights into the transition-metal mediated dioxygen reduction process that are obtained from the present study should serve as useful and broadly applicable principles for future design of more efficient catalysts in fuel cells.
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Affiliation(s)
- Anirban Chandra
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, D-12489 Berlin, Germany.
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50
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Kass D, Corona T, Warm K, Braun-Cula B, Kuhlmann U, Bill E, Mebs S, Swart M, Dau H, Haumann M, Hildebrandt P, Ray K. Stoichiometric Formation of an Oxoiron(IV) Complex by a Soluble Methane Monooxygenase Type Activation of O 2 at an Iron(II)-Cyclam Center. J Am Chem Soc 2020; 142:5924-5928. [PMID: 32168447 DOI: 10.1021/jacs.9b13756] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In soluble methane monooxygenase enzymes (sMMO), dioxygen (O2) is activated at a diiron(II) center to form an oxodiiron(IV) intermediate Q that performs the challenging oxidation of methane to methanol. An analogous mechanism of O2 activation at mono- or dinuclear iron centers is rare in the synthetic chemistry. Herein, we report a mononuclear non-heme iron(II)-cyclam complex, 1-trans, that activates O2 to form the corresponding iron(IV)-oxo complex, 2-trans, via a mechanism reminiscent of the O2 activation process in sMMO. The conversion of 1-trans to 2-trans proceeds via the intermediate formation of an iron(III)-superoxide species 3, which could be trapped and spectroscopically characterized at -50 °C. Surprisingly, 3 is a stronger oxygen atom transfer (OAT) agent than 2-trans; 3 performs OAT to 1-trans or PPh3 to yield 2-trans quantitatively. Furthermore, 2-trans oxidizes the aromatic C-H bonds of 2,6-di-tert-butylphenol, which, together with the strong OAT ability of 3, represents new domains of oxoiron(IV) and superoxoiron(III) reactivities.
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Affiliation(s)
- Dustin Kass
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Teresa Corona
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Katrin Warm
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Beatrice Braun-Cula
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
| | - Uwe Kuhlmann
- Department of Chemistry, Technische Universität Berlin, Straβe des 17. Juni 135, 10623 Berlin, Germany
| | - Eckhard Bill
- Max-Planck-Institut für Chemische Energiekonversion, Stiftstrasse 34-36, 45470 Mülheim an der Ruhr, Germany
| | - Stefan Mebs
- Department of Physics, Freie Universität Berlin, Arminallee 14, 14195 Berlin, Germany
| | - Marcel Swart
- ICREA, Lluis Companys 23, 08010 Barcelona, Spain.,IQCC, Universitat de Girona, Campus Montilivi, 17003 Girona, Spain
| | - Holger Dau
- Department of Physics, Freie Universität Berlin, Arminallee 14, 14195 Berlin, Germany
| | - Michael Haumann
- Department of Physics, Freie Universität Berlin, Arminallee 14, 14195 Berlin, Germany
| | - Peter Hildebrandt
- Department of Chemistry, Technische Universität Berlin, Straβe des 17. Juni 135, 10623 Berlin, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489 Berlin, Germany
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