1
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Zhang H, Liu T, Dulock N, Williams BP, Wang Y, Chen B, Wikar H, Wang DZ, Brudvig GW, Wang D, Waegele MM. Atomically dispersed Ir catalysts exhibit support-dependent water oxidation kinetics during photocatalysis. Chem Sci 2023; 14:6601-6607. [PMID: 37350819 PMCID: PMC10283500 DOI: 10.1039/d3sc00603d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 05/25/2023] [Indexed: 06/24/2023] Open
Abstract
Heterogeneous water oxidation catalysis is central to the development of renewable energy technologies. Recent research has suggested that the reaction mechanisms are sensitive to the hole density at the active sites. However, these previous results were obtained on catalysts of different materials featuring distinct active sites, making it difficult to discriminate between competing explanations. Here, a comparison study based on heterogenized dinuclear Ir catalysts (Ir-DHC), which feature the same type of active site on different supports, is reported. The prototypical reaction was water oxidation triggered by pulsed irradiation of suspensions containing a light sensitizer, Ru(bpy)32+, and a sacrificial electron scavenger, S2O82-. It was found that at relatively low temperatures (288-298 K), the water oxidation activities of Ir-DHC on indium tin oxide (ITO) and CeO2 supports were comparable within the studied range of fluences (62-151 mW cm-2). By contrast, at higher temperatures (310-323 K), Ir-DHC on ITO exhibited a ca. 100% higher water oxidation activity than on CeO2. The divergent activities were attributed to the distinct abilities of the supporting substrates in redistributing holes. The differences were only apparent at relatively high temperatures when hole redistribution to the active site became a limiting factor. These findings highlight the critical role of the supporting substrate in determining the turnover at active sites of heterogeneous catalysts.
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Affiliation(s)
- Hongna Zhang
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Tianying Liu
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Nicholas Dulock
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Benjamin P Williams
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Yuanxing Wang
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Boqiang Chen
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Haden Wikar
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - David Z Wang
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Gary W Brudvig
- Department of Chemistry and Yale Energy Sciences Institute, Yale University New Haven Connecticut 06520-8107 USA
| | - Dunwei Wang
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
| | - Matthias M Waegele
- Department of Chemistry, Boston College, Merkert Chemistry Center Chestnut Hill Massachusetts 02467 USA
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2
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Singh G, Das Adhikary S, Mandal D. Physico- and Electrochemical Properties of First-Row Transition-Metal-Substituted Sandwich Polyoxometalates. Inorg Chem 2023. [PMID: 37207291 DOI: 10.1021/acs.inorgchem.3c00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The physico- and electrochemical behaviors of a series of [WZn3(H2O)2(ZnW9O34)2]12- (Zn-WZn3) and its first-row transition-metal-substituted analogues [WZn(TM)2(H2O)2(ZnW9O34)2]12- (Zn-WZn(TM)2; TM = MnII, CoII, FeIII, NiII and CuII) are reported. Various spectroscopic studies, including Fourier transform infrared (FTIR) spectroscopy, UV-visible spectroscopy, electrospray ionization (ESI)-mass spectrometry, and Raman spectroscopy, show similar spectral patterns in all sandwich polyoxometalates (POMs) because of their isostructural geometry and constancy of the overall negative charge (-12). However, the electronic properties highly depend on the transition metals at the "sandwich core" and correlate well with the density functional theory (DFT) study. Further, depending on the substituted TM atoms, there is a decrease in the highest occupied molecular orbital-lowest unoccupied molecular orbital (HOMO-LUMO) band-gap energy in these transition-metal-substituted POM (TMSP) complexes wrt Zn-WZn3, as confirmed by diffuse reflectance spectroscopy and DFT study. Cyclic voltammetry reveals that the electrochemistry of these sandwich POMs (Zn-WZn3 and TMSPs) is highly dependent on the pH of the solution. Moreover, the dioxygen binding/activation studies of these polyoxometalates show that Zn-WZn3 and Zn-WZnFe2 have better efficiency toward dioxygen binding, as confirmed by FTIR spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and thermogravimetric analysis (TGA), which is also reflected in their catalytic activity toward imine synthesis.
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Affiliation(s)
- Ganga Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Subhasis Das Adhikary
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
| | - Debaprasad Mandal
- Department of Chemistry, Indian Institute of Technology Ropar, Rupnagar, Punjab 140001, India
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3
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Grafting of Anionic Decahydro- Closo-Decaborate Clusters on Keggin and Dawson-Type Polyoxometalates: Syntheses, Studies in Solution, DFT Calculations and Electrochemical Properties. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227663. [PMID: 36431764 PMCID: PMC9694426 DOI: 10.3390/molecules27227663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/29/2022] [Accepted: 11/02/2022] [Indexed: 11/11/2022]
Abstract
Herein we report the synthesis of a new class of compounds associating Keggin and Dawson-type Polyoxometalates (POMs) with a derivative of the anionic decahydro-closo-decaborate cluster [B10H10]2- through aminopropylsilyl ligand (APTES) acting as both a linker and a spacer between the two negatively charged species. Three new adducts were isolated and fully characterized by various NMR techniques and MALDI-TOF mass spectrometry, notably revealing the isolation of an unprecedented monofunctionalized SiW10 derivative stabilized through intramolecular H-H dihydrogen contacts. DFT as well as electrochemical studies allowed studying the electronic effect of grafting the decaborate cluster on the POM moiety and its consequences on the hydrogen evolution reaction (HER) properties.
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Song H, Amati A, Pannwitz A, Bonnet S, Hammarström L. Mechanistic Insights into the Charge Transfer Dynamics of Photocatalytic Water Oxidation at the Lipid Bilayer-Water Interface. J Am Chem Soc 2022; 144:19353-19364. [PMID: 36250745 DOI: 10.1021/jacs.2c06842] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photosystem II, the natural water-oxidizing system, is a large protein complex embedded in a phospholipid membrane. A much simpler system for photocatalytic water oxidation consists of liposomes functionalized with amphiphilic ruthenium(II)-tris-bipyridine photosensitizer (PS) and 6,6'-dicarboxylato-2,2'-bipyridine-ruthenium(II) catalysts (Cat) with a water-soluble sacrificial electron acceptor (Na2S2O8). However, the effect of embedding this photocatalytic system in liposome membranes on the mechanism of photocatalytic water oxidation was not well understood. Here, several phenomena have been identified by spectroscopic tools, which explain the drastically different kinetics of water photo-oxidizing liposomes, compared with analogous homogeneous systems. First, the oxidative quenching of photoexcited PS* by S2O82- at the liposome surface occurs solely via static quenching, while dynamic quenching is observed for the homogeneous system. Moreover, the charge separation efficiency after the quenching reaction is much smaller than unity, in contrast to the quantitative generation of PS+ in homogeneous solution. In parallel, the high local concentration of the membrane-bound PS induces self-quenching at 10:1-40:1 molar lipid-PS ratios. Finally, while the hole transfer from PS+ to catalyst is rather fast in homogeneous solution (kobs > 1 × 104 s-1 at [catalyst] > 50 μM), in liposomes at pH = 4, the reaction is rather slow (kobs ≈ 17 s-1 for 5 μM catalyst in 100 μM DMPC lipid). Overall, the better understanding of these productive and unproductive pathways explains what limits the rate of photocatalytic water oxidation in liposomal vs homogeneous systems, which is required for future optimization of light-driven catalysis within self-assembled lipid interfaces.
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Affiliation(s)
- Hongwei Song
- Department of Chemistry-Angstrom Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
| | - Agnese Amati
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Andrea Pannwitz
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands.,Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Sylvestre Bonnet
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands
| | - Leif Hammarström
- Department of Chemistry-Angstrom Laboratory, Uppsala University, Box 523, 751 20 Uppsala, Sweden
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5
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Ziegenbalg D, Pannwitz A, Rau S, Dietzek‐Ivanšić B, Streb C. Comparative Evaluation of Light‐Driven Catalysis: A Framework for Standardized Reporting of Data**. Angew Chem Int Ed Engl 2022; 61:e202114106. [PMID: 35698245 PMCID: PMC9401044 DOI: 10.1002/anie.202114106] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Indexed: 01/05/2023]
Affiliation(s)
- Dirk Ziegenbalg
- Institute of Chemical Engineering Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Andrea Pannwitz
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Benjamin Dietzek‐Ivanšić
- Institute of Physical Chemistry and Center of Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich Schiller University Jena Helmholtzweg 4 07743 Jena Germany
- Department Functional Interfaces Leibniz Institute of Photonic Technology Jena (IPHT) Albert-Einstein-Straße 9 07745 Jena Germany
| | - Carsten Streb
- Institute of Inorganic Chemistry I Ulm University Albert-Einstein-Allee 11 89081 Ulm Germany
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10-14 55128 Mainz Germany
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6
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Ziegenbalg D, Pannwitz A, Rau S, Dietzek‐Ivanšić B, Streb C. Vergleichende Evaluierung lichtgetriebener Katalyse: Ein Rahmenkonzept für das standardisierte Berichten von Daten**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Dirk Ziegenbalg
- Institut für Chemieingenieurwesen Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Andrea Pannwitz
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Sven Rau
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Benjamin Dietzek‐Ivanšić
- Institut für Physikalische Chemie und Center of Energy and Environmental Chemistry Jena (CEEC Jena) Friedrich-Schiller-Universität Jena Helmholtzweg 4 07743 Jena Deutschland
- Department Funktionale Grenzflächen Leibniz-Institut für Photonische Technologien Jena (IPHT) Albert-Einstein-Straße 9 07745 Jena Deutschland
| | - Carsten Streb
- Institut für Anorganische Chemie I Universität Ulm Albert-Einstein-Allee 11 89081 Ulm Deutschland
- Department of Chemistry Johannes Gutenberg University Mainz Duesbergweg 10-14 55128 Mainz Germany
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7
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Schindler D, Meza-Chincha AL, Roth M, Würthner F. Structure-Activity Relationship for Di- up to Tetranuclear Macrocyclic Ruthenium Catalysts in Homogeneous Water Oxidation. Chemistry 2021; 27:16938-16946. [PMID: 33909302 PMCID: PMC9290496 DOI: 10.1002/chem.202100549] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Indexed: 12/13/2022]
Abstract
Two di- and tetranuclear Ru(bda) (bda: 2,2'-bipyridine-6,6'-dicarboxylate) macrocyclic complexes were synthesized and their catalytic activities in chemical and photochemical water oxidation investigated in a comparative manner to our previously reported trinuclear congener. Our studies have shown that the catalytic activities of this homologous series of multinuclear Ru(bda) macrocycles in homogeneous water oxidation are dependent on their size, exhibiting highest efficiencies for the largest tetranuclear catalyst. The turnover frequencies (TOFs) have increased from di- to tetranuclear macrocycles not only per catalyst molecule but more importantly also per Ru unit with TOF of 6 s-1 to 8.7 s-1 and 10.5 s-1 in chemical and 0.6 s-1 to 3.3 s-1 and 5.8 s-1 in photochemical water oxidation per Ru unit, respectively. Thus, for the first time, a clear structure-activity relationship could be established for this novel class of macrocyclic water oxidation catalysts.
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Affiliation(s)
- Dorothee Schindler
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Ana-Lucia Meza-Chincha
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Maximilian Roth
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
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8
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La Ganga G, Puntoriero F, Fazio E, Natali M, Nastasi F, Santoro A, Galletta M, Campagna S. Photoinduced Water Oxidation in Chitosan Nanostructures Containing Covalently Linked Ru II Chromophores and Encapsulated Iridium Oxide Nanoparticles. Chemistry 2021; 27:16904-16911. [PMID: 34418201 PMCID: PMC9291156 DOI: 10.1002/chem.202102032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Indexed: 11/09/2022]
Abstract
The luminophore Ru(bpy)2(dcbpy)2+ (bpy=2,2’‐bipyridine; dcbpy=4,4’‐dicarboxy‐2,2’‐bipyridine) is covalently linked to a chitosan polymer; crosslinking by tripolyphosphate produced Ru‐decorated chitosan fibers (NS‐RuCh), with a 20 : 1 ratio between chitosan repeating units and RuII chromophores. The properties of the RuII compound are unperturbed by the chitosan structure, with NS‐RuCh exhibiting the typical metal‐to‐ligand charge‐transfer (MLCT) absorption and emission bands of RuII complexes. When crosslinks are made in the presence of IrO2 nanoparticles, such species are encapsulated within the nanofibers, thus generating the IrO2⊂NS‐RuCh system, in which both RuII photosensitizers and IrO2 water oxidation catalysts are within the nanofiber structures. NS‐RuCh and IrO2⊂NS‐RuCh have been characterized by dynamic light scattering, scanning electronic microscopy, and energy‐dispersive X‐ray analysis, which indicated a 2 : 1 ratio between RuII chromophores and IrO2 species. Photochemical water oxidation has been investigated by using IrO2⊂NS‐RuCh as the chromophore/catalyst assembly and persulfate anions as the sacrificial species: photochemical water oxidation yields O2 with a quantum yield (Φ) of 0.21, definitely higher than the Φ obtained with a similar solution containing separated Ru(bpy)32+ and IrO2 nanoparticles (0.05) or with respect to that obtained when using NS‐RuCh and “free” IrO2 nanoparticles (0.10). A fast hole‐scavenging process (rate constant, 7×104 s−1) involving the oxidized photosensitizer and the IrO2 catalyst within the IrO2⊂NS‐RuCh system is behind the improved photochemical quantum yield of IrO2⊂NS‐RuCh.
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Affiliation(s)
- Giuseppina La Ganga
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, 98166, Messina, Italy
| | - Fausto Puntoriero
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, 98166, Messina, Italy
| | - Enza Fazio
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università di Messina, 98166, Messina, Italy
| | - Mirco Natali
- Dipartimento di Scienze Chimiche, Farmaceutiche ed Agrarie, Università di Ferrara, 44121, Ferrara, Italy
| | - Francesco Nastasi
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, 98166, Messina, Italy
| | - Antonio Santoro
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, 98166, Messina, Italy
| | - Maurilio Galletta
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, 98166, Messina, Italy
| | - Sebastiano Campagna
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, 98166, Messina, Italy
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Al‐Sayed E, Nandan SP, Tanuhadi E, Giester G, Arrigoni M, Madsen GKH, Cherevan A, Eder D, Rompel A. Phosphate-Templated Encapsulation of a {Co II 4 O 4 } Cubane in Germanotungstates as Carbon-Free Homogeneous Water Oxidation Photocatalysts. CHEMSUSCHEM 2021; 14:2529-2536. [PMID: 33835713 PMCID: PMC8251812 DOI: 10.1002/cssc.202100506] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/06/2021] [Indexed: 06/12/2023]
Abstract
The ever-growing interest in sustainable energy sources leads to a search for an efficient, stable, and inexpensive homogeneous water oxidation catalyst (WOC). Herein, the PO4 3- templated synthesis of three abundant-metal-based germanotungstate (GT) clusters Na15 [Ge4 PCo4 (H2 O)2 W24 O94 ] ⋅ 38H2 O (Co4 ), Na2.5 K17.5 [Ge3 PCo9 (OH)5 (H2 O)4 W30 O115 ] ⋅ 45H2 O (Co9 ), Na6 K16 [Ge4 P4 Co20 (OH)14 (H2 O)18 W36 O150 ] ⋅ 61H2 O (Co20 ) with non-, quasi-, or full cubane motifs structurally strongly reminiscent of the naturally occurring {Mn4 Ca} oxygen evolving complex (OEC) in photosystem II was achieved. Under the conditions tested, all three GT-scaffolds were active molecular WOCs, with Co9 and Co20 outperforming the well-known Na10 [Co4 (H2 O)2 (PW9 O34 )2 ] {Co4 P2 W18 } by a factor of 2 as shown by a direct comparison of their turnover numbers (TONs). With TONs up to 159.9 and a turnover frequency of 0.608 s-1 Co9 currently represents the fastest Co-GT-based WOC, and photoluminescence emission spectroscopy provided insights into its photocatalytic WOC mechanism. Cyclic voltammetry, dynamic light scattering, UV/Vis and IR spectroscopy showed recyclability and integrity of the catalysts under the applied conditions. The experimental results were supported by computational studies, which highlighted that the facilitated oxidation of Co9 was due to the higher energy of its highest occupied molecular orbital electrons as compared to Co4 .
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Affiliation(s)
- Emir Al‐Sayed
- Fakultät für ChemieInstitut für Biophysikalische ChemieUniversität WienAlthanstraße 141090WienAustria
| | | | - Elias Tanuhadi
- Fakultät für ChemieInstitut für Biophysikalische ChemieUniversität WienAlthanstraße 141090WienAustria
| | - Gerald Giester
- Fakultät für GeowissenschaftenGeographie und AstronomieInstitut für Mineralogie und KristallographieUniversität WienAlthanstraße 141090WienAustria
| | - Marco Arrigoni
- Institute of Materials ChemistryTU WienGetreidemarkt 9Vienna1060Austria
| | | | - Alexey Cherevan
- Institute of Materials ChemistryTU WienGetreidemarkt 9Vienna1060Austria
| | - Dominik Eder
- Institute of Materials ChemistryTU WienGetreidemarkt 9Vienna1060Austria
| | - Annette Rompel
- Fakultät für ChemieInstitut für Biophysikalische ChemieUniversität WienAlthanstraße 141090WienAustria
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10
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Rigodanza F, Marino N, Bonetto A, Marcomini A, Bonchio M, Natali M, Sartorel A. Water-Assisted Concerted Proton-Electron Transfer at Co(II)-Aquo Sites in Polyoxotungstates With Photogenerated Ru III (bpy) 33+ Oxidant. Chemphyschem 2021; 22:1208-1218. [PMID: 33851772 PMCID: PMC8251842 DOI: 10.1002/cphc.202100190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/13/2021] [Indexed: 02/06/2023]
Abstract
The cobalt substituted polyoxotungstate [Co6 (H2 O)2 (α-B-PW9 O34 )2 (PW6 O26 )]17- (Co6) displays fast electron transfer (ET) kinetics to photogenerated RuIII (bpy)33+ , 4 to 5 orders of magnitude faster than the corresponding ET observed for cobalt oxide nanoparticles. Mechanistic evidence has been acquired indicating that: (i) the one-electron oxidation of Co6 involves Co(II) aquo or Co(II) hydroxo groups (abbreviated as Co6(II)-OH2 and Co6(II)-OH, respectively, whose speciation in aqueous solution is associated to a pKa of 7.6), and generates a Co(III)-OH moiety (Co6(III)-OH), as proven by transient absorption spectroscopy; (ii) at pH>pKa , the Co6(II)-OH→RuIII (bpy)33+ ET occurs via bimolecular kinetics, with a rate constant k close to the diffusion limit and dependent on the ionic strength of the medium, consistent with reaction between charged species; (iii) at pH
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Affiliation(s)
- Francesco Rigodanza
- Department of Chemical SciencesUniversity of Padovavia Marzolo 135131PadovaItaly
- Consiglio Nazionale delle Ricerche (C.N.R.)Institute on Membrane Technology section of Padovavia Marzolo 135131PadovaItaly
| | - Nadia Marino
- Department of Chemistry and Chemical TechnologiesUniversity of Calabria87036Arcavacata di Rende (CS)Italy
| | - Alessandro Bonetto
- Dept. Environmental Sciences, Informatics and StatisticsUniversity Ca' Foscari Venice VegaparkVia delle Industrie 21/830175Marghera, VeniceItaly
| | - Antonio Marcomini
- Dept. Environmental Sciences, Informatics and StatisticsUniversity Ca' Foscari Venice VegaparkVia delle Industrie 21/830175Marghera, VeniceItaly
| | - Marcella Bonchio
- Department of Chemical SciencesUniversity of Padovavia Marzolo 135131PadovaItaly
- Consiglio Nazionale delle Ricerche (C.N.R.)Institute on Membrane Technology section of Padovavia Marzolo 135131PadovaItaly
| | - Mirco Natali
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DOCPAS)University of Ferrara, and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM) sez. di Ferraravia L. Borsari 4644121FerraraItaly
| | - Andrea Sartorel
- Department of Chemical SciencesUniversity of Padovavia Marzolo 135131PadovaItaly
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Kemmegne-Mbouguen JC, Floquet S, Cadot E. Electrochemical properties of the [SiW 10 O 36 (M 2 O 2 E 2 )] 6- Polyoxometalates series (M = Mo(V) or W(V); E = S or O) in aqueous medium: application to the electroanalysis of iodates. CR CHIM 2021. [DOI: 10.5802/crchim.57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Synthesis, Physical Properties and Application of a Series of New Polyoxometalate-Based Ionic Liquids. Molecules 2021; 26:molecules26020496. [PMID: 33477711 PMCID: PMC7831901 DOI: 10.3390/molecules26020496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 11/18/2022] Open
Abstract
This paper deals with the preparation and the characterization of four new ionic liquids resulting from the pairing of various polyoxotungstates or polyoxomolybdates with the cation trihexyltetradecylphosphonium. The physical properties measured by different techniques evidence that the viscosity and the rheological behaviors of such POM-based ionic liquids, POM-ILs, strongly depend on the nature of the POM, especially its charge. Playing on the nature of the POM, we can indeed obtain Newtonian liquids or some much more viscous materials exhibiting characteristics of resins or pseudo-plastics. In a second part of this study, the potentialities of using such materials both as solvent and catalyst for the oxidation of a series of alcohols are presented as proof of concept. This part highlights great differences in strength and selectivity as a function of the POM-IL used. Furthermore, a very simple way to recycle the catalyst is also presented.
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13
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Wang R, Liu Y, Bi L. Synthesis of tetraruthenium (IV)-substituted tungstogermanate and catalytic oxidation of n-tetradecane under mild solvent-free conditions. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1791322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ruiqiang Wang
- College of Chemistry, Jilin University, Changchun, P. R. China
| | - Yuzhong Liu
- First Hospital, Jilin University, Changchun, P. R. China
| | - Lihua Bi
- College of Chemistry, Jilin University, Changchun, P. R. China
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14
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Meza‐Chincha A, Schindler D, Natali M, Würthner F. Effects of Photosensitizers and Reaction Media on Light‐Driven Water Oxidation with Trinuclear Ruthenium Macrocycles. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Dorothee Schindler
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Mirco Natali
- Department of Chemical and Pharmaceutical Sciences University of Ferrara Via L. Borsari 46 44121 Ferrara Italy
| | - Frank Würthner
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
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15
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Volpe A, Natali M, Graiff C, Sartorel A, Tubaro C, Bonchio M. Novel iridium complexes with N-heterocyclic dicarbene ligands in light-driven water oxidation catalysis: photon management, ligand effect and catalyst evolution. Dalton Trans 2020; 49:2696-2705. [PMID: 32049077 DOI: 10.1039/c9dt04841c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Iridium complexes [IrClCp*diNHC]PF6, with N-heterocyclic dicarbene (diNHC) and pentamethylcyclopentadienyl (Cp*) ligands, have been investigated in light driven water oxidation catalysis within the Ru(bpy)32+/S2O82- cycle (bpy = 2,2'-bipyridine). In particular, the effect of different diNHC ligands was evaluated by employing the complex 1a (diNHC = 1,1'-dimethyl-3,3'-ethylenediimidazol-2,2'-diylidene) and the novel and structurally characterised 2 (diNHC = 1,1'-dimethyl-3,3'-ethylene-5,5'-dibromodiimidazol-2,2'-diylidene) and 3 (diNHC = 1,1'-dimethyl-3,3'-ethylene-dibenzimidazol-2,2'-diylidene). The presented results include: (i) a photon management analysis of the 1a/Ru(bpy)32+/S2O82- system, revealing two regimes of O2 evolution rate, being dependent on the light intensity at low photon flux, where the system reaches an overall quantum yield up to 0.17 ± 0.01 (quantum efficiency 34 ± 2%), while being independent of light intensity at high photon flux thus indicating a change of limiting step; (ii) a trend of O2 evolution activity that follows the order 1a > 2 > 3 both under low and high photon flux conditions, with the reactivity that is favoured by the electron donating nature of the diNHC ligand, quantified on the basis of the carbene carbon chemical shift; (iii) an analogous trend also in the bimolecular rate constants of electron transfer kET from the iridium species to photogenerated Ru(bpy)33+, with kET values in the range 4.2-6.1 × 104 M-1 s-1, thus implying a significant reorganisation energy to the iridium sphere; (iv) the evolution of 1a, as the most active Ir species in the series, to mononuclear iridium species with lower molecular weight and originating from oxidative transformation of the organic ligand scaffold, as proven by converging UV-Vis, MALDI-MS and 1H-NMR evidences. These results can be used for the further design and engineering of novel catalysts.
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Affiliation(s)
- Andrea Volpe
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - Mirco Natali
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM), sez. Di Ferrara, via L. Borsari 46, 44121 Ferrara, Italy.
| | - Claudia Graiff
- Department of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, Parco Area delle Scienze 17/A, 43124 Parma, Italy
| | - Andrea Sartorel
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - Cristina Tubaro
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - Marcella Bonchio
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
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16
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Volpe A, Tubaro C, Natali M, Sartorel A, Brudvig GW, Bonchio M. Light-Driven Water Oxidation with the Ir-blue Catalyst and the Ru(bpy) 32+/S 2O 82- Cycle: Photogeneration of Active Dimers, Electron-Transfer Kinetics, and Light Synchronization for Oxygen Evolution with High Quantum Efficiency. Inorg Chem 2019; 58:16537-16545. [PMID: 31774669 DOI: 10.1021/acs.inorgchem.9b02531] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Light-driven water oxidation is achieved with the Ru(bpy)32+/S2O82- cycle employing the highly active Ir-blue water oxidation catalyst, namely, an IrIV,IV2(pyalc)2 μ-oxo-dimer [pyalc = 2-(2'-pyridyl)-2-propanoate]. Ir-blue is readily formed by stepwise oxidation of the monomeric Ir(III) precursor 1 by the photogenerated Ru(bpy)33+, with a quantum yield ϕ of up to 0.10. Transient absorption spectroscopy and kinetic evidence point to a stepwise mechanism, where the primary event occurs via a fast photoinduced electron transfer from 1 to Ru(bpy)33+, leading to the Ir(IV) monomer I1 (k1 ∼ 108 M-1 s-1). The competent Ir-blue catalyst is then obtained from I1 upon photooxidative loss of the Cp* ligand and dimerization. The Ir-blue catalyst is active in the Ru(bpy)32+/S2O82- light-driven water oxidation cycle, where it undergoes two fast photoinduced electron transfers to Ru(bpy)33+ [with kIr-blue = (3.00 ± 0.02) × 108 M-1 s-1 for the primary event, outperforming iridium oxide nanoparticles by ca. 2 orders of magnitude], leading to a IrV,V2 steady-state intermediate involved in O-O bond formation. The quantum yield for oxygen evolution depends on the photon flux, showing a saturation regime and reaching an impressive value of ϕ(O2) = 0.32 ± 0.01 (corresponding to a quantum efficiency of 64 ± 2%) at low irradiation intensity. This result highlights the key requirement of orchestrating the rate of the photochemical events with dark catalytic turnover.
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Affiliation(s)
- Andrea Volpe
- Department of Chemical Sciences , University of Padova , via Marzolo 1 , 35131 Padova , Italy
| | - Cristina Tubaro
- Department of Chemical Sciences , University of Padova , via Marzolo 1 , 35131 Padova , Italy
| | - Mirco Natali
- Department of Chemical and Pharmaceutical Sciences , University of Ferrara and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SolarChem) , sez. di Ferrara, via L. Borsari 46 , 44121 Ferrara , Italy
| | - Andrea Sartorel
- Department of Chemical Sciences , University of Padova , via Marzolo 1 , 35131 Padova , Italy
| | - Gary W Brudvig
- Department of Chemistry , Yale University , 225 Prospect Street , New Haven , Connecticut 06520-8107 , United States
| | - Marcella Bonchio
- Department of Chemical Sciences , University of Padova , via Marzolo 1 , 35131 Padova , Italy
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17
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Martinetto Y, Pégot B, Roch‐Marchal C, Cottyn‐Boitte B, Floquet S. Designing Functional Polyoxometalate‐Based Ionic Liquid Crystals and Ionic Liquids. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900990] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yohan Martinetto
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
- Institut Jean‐Pierre Bourgin, INRA, Agro Paris Tech, CNRS Université Paris Saclay 78000 Versailles France
| | - Bruce Pégot
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
| | - Catherine Roch‐Marchal
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
| | - Betty Cottyn‐Boitte
- Institut Jean‐Pierre Bourgin, INRA, Agro Paris Tech, CNRS Université Paris Saclay 78000 Versailles France
| | - Sébastien Floquet
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
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18
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Huang NY, Shen JQ, Ye ZM, Zhang WX, Liao PQ, Chen XM. An exceptionally stable octacobalt-cluster-based metal-organic framework for enhanced water oxidation catalysis. Chem Sci 2019; 10:9859-9864. [PMID: 32015809 PMCID: PMC6977550 DOI: 10.1039/c9sc03224j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/28/2019] [Indexed: 11/21/2022] Open
Abstract
Extensive efforts have been devoted to developing efficient and durable catalysts for water oxidation. Herein, we report a highly stable metal-organic framework that shows high catalytic activity and durability for electrically driven (an overpotential of 430 mV at 10 mA cm-2 in neutral aqueous solution) and photodriven (a turnover frequency of 16 s-1 and 12 000 cycles) water oxidation, representing the best catalyst for water oxidation reported to date. Computational simulation and isotope tracing experiments showed that the μ4-OH group of the {Co8(μ4-OH)6} unit participates in the water oxidation reaction to offer an oxygen vacancy site with near-optimal OH- adsorption energy.
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Affiliation(s)
- Ning-Yu Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry , School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , China .
| | - Jian-Qiang Shen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry , School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , China .
- Department of Chemical and Biomolecular Engineering , University of California , Los Angeles , CA 90095 , USA
| | - Zi-Ming Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry , School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , China .
| | - Wei-Xiong Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry , School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , China .
| | - Pei-Qin Liao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry , School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , China .
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry , School of Chemistry , Sun Yat-Sen University , Guangzhou 510275 , China .
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19
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Zhang Q, Guan J. Mono-/Multinuclear Water Oxidation Catalysts. CHEMSUSCHEM 2019; 12:3209-3235. [PMID: 31077565 DOI: 10.1002/cssc.201900704] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/23/2019] [Indexed: 06/09/2023]
Abstract
Water splitting, in which water molecules can be transformed into hydrogen and oxygen, is an appealing energy conversion and transformation strategy to address the environmental and energy crisis. The oxygen evolution reaction (OER) is dynamically slow, which limits energy conversion efficiency during the water-splitting process and requires high-efficiency water oxidation catalysts (WOCs) to overcome the OER energy barrier. It is generally accepted that multinuclear WOCs possess superior OER performances, as demonstrated by the CaMn4 O5 cluster in photosystem II (PSII), which can catalyze the OER efficiently with a very low overpotential. Inspired by the CaMn4 O5 cluster in PSII, some multinuclear WOCs were synthesized that could catalyze water oxidation. In addition, some mononuclear molecular WOCs also show high water oxidation activity. However, it cannot be excluded that the high activity arises from the formation of dimeric species. Recently, some mononuclear heterogeneous WOCs showed a high water oxidation activity, which testified that mononuclear active sites with suitable coordination surroundings could also catalyze water oxidation efficiently. This Review focuses on recent progress in the development of mono-/multinuclear homo- and heterogeneous catalysts for water oxidation. The active sites and possible catalytic mechanisms for water oxidation on the mono-/multinuclear WOCs are provided.
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Affiliation(s)
- Qiaoqiao Zhang
- College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Jingqi Guan
- College of Chemistry, Jilin University, Changchun, 130012, PR China
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20
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Fukuzumi S, Lee YM, Nam W. Kinetics and mechanisms of catalytic water oxidation. Dalton Trans 2019; 48:779-798. [PMID: 30560964 DOI: 10.1039/c8dt04341h] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetics and mechanisms of thermal and photochemical oxidation of water with homogeneous and heterogeneous catalysts, including conversion from homogeneous to heterogeneous catalysts in the course of water oxidation, are discussed in this review article. Molecular and homogeneous catalysts have the advantage to clarify the catalytic mechanisms by detecting active intermediates in catalytic water oxidation. On the other hand, heterogeneous nanoparticle catalysts have advantages for practical applications due to high catalytic activity, robustness and easier separation of catalysts by filtration as compared with molecular homogeneous precursors. Ligand oxidation of homogeneous catalysts sometimes results in the dissociation of ligands to form nanoparticles, which act as much more efficient catalysts for water oxidation. Since it is quite difficult to identify active intermediates on the heterogeneous catalyst surface, the mechanism of water oxidation has hardly been clarified under heterogeneous catalytic conditions. This review focuses on the kinetics and mechanisms of catalytic water oxidation with homogeneous catalysts, which may be converted to heterogeneous nanoparticle catalysts depending on various reaction conditions.
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Affiliation(s)
- Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.
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21
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Natali M, Nastasi F, Puntoriero F, Sartorel A. Mechanistic Insights into Light‐Activated Catalysis for Water Oxidation. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801236] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mirco Natali
- Department of Chemical and Pharmaceutical Sciences University of Ferrara Via L. Borsari 46 44121 Ferrara Italy
| | - Francesco Nastasi
- Department of Chemical Biological University of Messina Via Sperone 31 98166 Messina Italy
| | - Fausto Puntoriero
- Department of Chemical Biological University of Messina Via Sperone 31 98166 Messina Italy
| | - Andrea Sartorel
- Department of Chemical Sciences Biological University of Padova Via Marzolo 1 35131 Padova Italy
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22
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Kemmegne-Mbouguen JC, Floquet S, Zang D, Bonnefont A, Ruhlmann L, Simonnet-Jégat C, López X, Haouas M, Cadot E. Electrochemical properties of the [SiW10O36(M2O2E2)]6− polyoxometalate series (M = Mo(v) or W(v); E = S or O). NEW J CHEM 2019. [DOI: 10.1039/c8nj04451a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
New insights about the electrochemical properties of S-containing polyoxometalates. Electrochemical properties of the compounds γ-[SiW10O36(M2O2E2)]6− (M = Mo(v) or W(v); E = O2− or S2−) in DMF.
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Affiliation(s)
| | - Sébastien Floquet
- Institut Lavoisier de Versailles
- UVSQ
- CNRS
- Université Paris-Saclay
- 78035 Versailles Cedex
| | - Dejin Zang
- Laboratoire d’Electrochimie et de Chimie Physique du Corps Solide
- Institut de Chimie-UMR 7177
- C.N.R.S
- Université de Strasbourg
- 67081 Strasbourg Cedex
| | - Antoine Bonnefont
- Laboratoire d’Electrochimie et de Chimie Physique du Corps Solide
- Institut de Chimie-UMR 7177
- C.N.R.S
- Université de Strasbourg
- 67081 Strasbourg Cedex
| | - Laurent Ruhlmann
- Laboratoire d’Electrochimie et de Chimie Physique du Corps Solide
- Institut de Chimie-UMR 7177
- C.N.R.S
- Université de Strasbourg
- 67081 Strasbourg Cedex
| | - Corine Simonnet-Jégat
- Institut Lavoisier de Versailles
- UVSQ
- CNRS
- Université Paris-Saclay
- 78035 Versailles Cedex
| | - Xavier López
- Universitat Rovira i Virgili
- Departament de Química Física i Inorgànica
- 43007 Tarragona
- Spain
| | - Mohamed Haouas
- Institut Lavoisier de Versailles
- UVSQ
- CNRS
- Université Paris-Saclay
- 78035 Versailles Cedex
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles
- UVSQ
- CNRS
- Université Paris-Saclay
- 78035 Versailles Cedex
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23
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Cameron JM, Wales DJ, Newton GN. Shining a light on the photo-sensitisation of organic-inorganic hybrid polyoxometalates. Dalton Trans 2018. [PMID: 29517788 DOI: 10.1039/c8dt00400e] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Finding new ways of using visible light (or, more specifically, solar irradiation) to drive commercially significant and/or challenging chemical processes is an ongoing research goal. Polyoxometalates (POMs) are discrete, metal-oxide clusters which are cheap, robust and easily synthesised but can also act as versatile molecular building blocks, allowing for astonishing variety in their structures and properties. In particular, the rich redox chemistry and inherent photo-activity of POMs makes them attractive for use in a variety of photochemical applications, however POMs characteristically only absorb strongly in the UV region. In this perspective, we discuss the various strategies which have been employed in order to sensitise POMs to visible light, with a particular focus on hybrid inorganic-organic POM species. We will discuss the two clear photo-activation mechanisms which have been developed to date and provide an outlook on some of the possible future directions of the field.
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Affiliation(s)
- Jamie M Cameron
- GSK Carbon Neutral Laboratory for Sustainable Chemistry, University of Nottingham, Nottingham, NG7 2GA, UK.
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24
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Jeon D, Kim N, Bae S, Han Y, Ryu J. WO 3/Conducting Polymer Heterojunction Photoanodes for Efficient and Stable Photoelectrochemical Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2018; 10:8036-8044. [PMID: 29462556 DOI: 10.1021/acsami.7b19203] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An efficient and stable heterojunction photoanode for solar water oxidation was fabricated by hybridization of WO3 and conducting polymers (CPs). Organic/inorganic hybrid photoanodes were readily prepared by the electropolymerization of various CPs and the codeposition of tetraruthenium polyoxometalate (Ru4POM) water-oxidation catalysts (WOCs) on the surface of WO3. The deposition of CPs, especially polypyrrole (PPy) doped with Ru4POM (PPy:Ru4POM), resulted in a remarkably improved photoelectrochemical performance by the formation of a WO3/PPy p-n heterojunction and the incorporation of efficient Ru4POM WOCs. In addition, there was also a significant improvement in the photostability of the WO3-based photoanode after the deposition of the PPy:Ru4POM layer due to the suppression of the formation of hydrogen peroxide, which was responsible for corrosion. This study provides insight into the design and fabrication of novel photosynthetic and photocatalytic systems with excellent performance and stability through the hybridization of organic and inorganic materials.
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Affiliation(s)
- Dasom Jeon
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Nayeong Kim
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Sanghyun Bae
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Yujin Han
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
| | - Jungki Ryu
- Department of Energy Engineering, School of Energy and Chemical Engineering , Ulsan National Institute of Science and Technology (UNIST) , Ulsan 44919 , Republic of Korea
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25
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Francàs L, Matheu R, Pastor E, Reynal A, Berardi S, Sala X, Llobet A, Durrant JR. Kinetic Analysis of an Efficient Molecular Light-Driven Water Oxidation System. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01357] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Laia Francàs
- Department
of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain
| | - Roc Matheu
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Ernest Pastor
- Department
of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Anna Reynal
- Department
of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
- Department
of Science, Teesside University, Borough Road, Middlesbrough TS1 3BA, United Kingdom
| | - Serena Berardi
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain
| | - Xavier Sala
- Departament
de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - Antoni Llobet
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain
- Departament
de Química, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, 08193 Barcelona, Spain
| | - James R. Durrant
- Department
of Chemistry, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
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26
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Bazzan I, Volpe A, Dolbecq A, Natali M, Sartorel A, Mialane P, Bonchio M. Cobalt based water oxidation catalysis with photogenerated Ru(bpy) 3 3+ : Different kinetics and competent species starting from a molecular polyoxometalate and metal oxide nanoparticles capped with a bisphosphonate alendronate pendant. Catal Today 2017. [DOI: 10.1016/j.cattod.2017.03.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Burian M, Syrgiannis Z, La Ganga G, Puntoriero F, Natali M, Scandola F, Campagna S, Prato M, Bonchio M, Amenitsch H, Sartorel A. Ruthenium based photosensitizer/catalyst supramolecular architectures in light driven water oxidation. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.04.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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28
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Lauinger S, Yin Q, Geletii Y, Hill C. Polyoxometalate Multielectron Catalysts in Solar Fuel Production. ADVANCES IN INORGANIC CHEMISTRY 2017. [DOI: 10.1016/bs.adioch.2016.12.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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29
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Wang RQ, Suo L, Zheng DM, Du Y, Wu LX, Bi LH. A heterogeneous catalyst containing tetraruthenium (IV)-substituted silicotungstate: Preparation, characterization and catalytic performance toward oxidation of n-tetradecane with air. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Kirchhoff B, Rau S, Streb C. Detecting and Preventing the Formation of Photosensitizer-Catalyst Colloids in Homogeneous Light-Driven Water Oxidation. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600065] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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31
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Walsh JJ, Bond AM, Forster RJ, Keyes TE. Hybrid polyoxometalate materials for photo(electro-) chemical applications. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.06.016] [Citation(s) in RCA: 218] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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33
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Laramée-Milette B, Hanan GS. Ruthenium bistridentate complexes with non-symmetrical hexahydro-pyrimidopyrimidine ligands: a structural and theoretical investigation of their optical and electrochemical properties. Dalton Trans 2016; 45:12507-17. [DOI: 10.1039/c6dt02408d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The optical and electronic properties of six Ru complexes with non-symmetrical tridentate ligands have been investigated and, as corroborated by electrochemical data, the presence of the hpp ligand strongly affects the oxidation potential of the metal ion.
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Affiliation(s)
| | - Garry S. Hanan
- Département de Chimie
- Université de Montréal
- Montréal
- Canada
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34
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Deponti E, Natali M. Photocatalytic hydrogen evolution with ruthenium polypyridine sensitizers: unveiling the key factors to improve efficiencies. Dalton Trans 2016; 45:9136-47. [DOI: 10.1039/c6dt01221c] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An alternative benchmark sensitizer for photochemical hydrogen generation is identified within a series of ruthenium complexes, capable of outperforming the standard Ru(bpy)32+.
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Affiliation(s)
- Elisa Deponti
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università degli Studi di Ferrara
- 44121 Ferrara
- Italy
- Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM)
| | - Mirco Natali
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università degli Studi di Ferrara
- 44121 Ferrara
- Italy
- Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM)
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35
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Vanadium(V)-Substitution Reactions of Wells–Dawson-Type Polyoxometalates: From [X2M18O62]6− (X = P, As; M = Mo, W) to [X2VM17O62]7−. INORGANICS 2015. [DOI: 10.3390/inorganics3030355] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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36
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Fielden J, Sumliner JM, Han N, Geletii YV, Xiang X, Musaev DG, Lian T, Hill CL. Water splitting with polyoxometalate-treated photoanodes: enhancing performance through sensitizer design. Chem Sci 2015; 6:5531-5543. [PMID: 29861891 PMCID: PMC5949860 DOI: 10.1039/c5sc01439e] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 06/10/2015] [Indexed: 01/22/2023] Open
Abstract
Visible light driven water oxidation has been demonstrated at near-neutral pH using photoanodes based on nanoporous films of TiO2, polyoxometalate (POM) water oxidation catalyst [{Ru4O4(OH)2(H2O)4}(γ-SiW10O36)2]10- (1), and both known photosensitizer [Ru(bpy)2(H4dpbpy)]2+ (P2) and the novel crown ether functionalized dye [Ru(5-crownphen)2(H2dpbpy)](H22). Both triads, containing catalyst 1, and catalyst-free dyads, produce O2 with high faradaic efficiencies (80 to 94%), but presence of catalyst enhances quantum yield by up to 190% (maximum 0.39%). New sensitizer H22 absorbs light more strongly than P2, and increases O2 quantum yields by up to 270%. TiO2-2 based photoelectrodes are also more stable to desorption of active species than TiO2-P2: losses of catalyst 1 are halved when pH > TiO2 point-of-zero charge (pzc), and losses of sensitizer reduced below the pzc (no catalyst is lost when pH < pzc). For the triads, quantum yields of O2 are higher at pH 5.8 than at pH 7.2, opposing the trend observed for 1 under homogeneous conditions. This is ascribed to lower stability of the dye oxidized states at higher pH, and less efficient electron transfer to TiO2, and is also consistent with the 4th1-to-dye electron transfer limiting performance rather than catalyst TOFmax. Transient absorption reveals that TiO2-2-1 has similar 1st electron transfer dynamics to TiO2-P2-1, with rapid (ps timescale) formation of long-lived TiO2(e-)-2-1(h+) charge separated states, and demonstrates that metallation of the crown ether groups (Na+/Mg2+) has little or no effect on electron transfer from 1 to 2. The most widely relevant findings of this study are therefore: (i) increased dye extinction coefficients and binding stability significantly improve performance in dye-sensitized water splitting systems; (ii) binding of POMs to electrode surfaces can be stabilized through use of recognition groups; (iii) the optimal homogeneous and TiO2-bound operating pHs of a catalyst may not be the same; and (iv) dye-sensitized TiO2 can oxidize water without a catalyst.
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Affiliation(s)
- John Fielden
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA . .,WestCHEM , School of Chemistry , University of Glasgow , G12 8QQ , UK
| | - Jordan M Sumliner
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA .
| | - Nannan Han
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA .
| | - Yurii V Geletii
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA .
| | - Xu Xiang
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA . .,State Key Laboratory of Chemical Resource Engineering , Beijing University of Chemical Technology , Beijing 1000029 , P. R. China
| | - Djamaladdin G Musaev
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA .
| | - Tianquan Lian
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA .
| | - Craig L Hill
- Department of Chemistry , Cherry L. Emerson Center for Scientific Computation , Emory University , Atlanta , GA 30322 , USA .
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37
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La Ganga G, Puntoriero F. Artificial photosynthesis: a molecular approach to photo-induced water oxidation. PURE APPL CHEM 2015. [DOI: 10.1515/pac-2014-1106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
By the use of a molecular approach we performed photo-induced water oxidation by combining different photosensitizers and catalysts in order to obtain an efficient system that pave the way to the construction of an artificial photosynthetic system. Different types of molecular catalysts, such as ruthenium and vanadium polyoxometalates or cobalt core stabilized by different organic ligands were combined with ruthenium (II) polypyridine complexes of different nuclearity, mononuclear species like [Ru(bpy)3]2+ or a tetranuclear dendrimer.
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38
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Affiliation(s)
- Sa-Sa Wang
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Guo-Yu Yang
- State
Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
- MOE
Key Laboratory of Cluster Science, School of Chemistry, Beijing Institute of Technology, Beijing 100081, China
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39
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Natali M, Deponti E, Vilona D, Sartorel A, Bonchio M, Scandola F. A Bioinspired System for Light-Driven Water Oxidation with a Porphyrin Sensitizer and a Tetrametallic Molecular Catalyst. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500063] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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40
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Li H, Li F, Zhang B, Zhou X, Yu F, Sun L. Visible Light-Driven Water Oxidation Promoted by Host–Guest Interaction between Photosensitizer and Catalyst with A High Quantum Efficiency. J Am Chem Soc 2015; 137:4332-5. [DOI: 10.1021/jacs.5b01924] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hua Li
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian 116024, China
| | - Fei Li
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian 116024, China
| | - Biaobiao Zhang
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian 116024, China
| | - Xu Zhou
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian 116024, China
| | - Fengshou Yu
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian 116024, China
| | - Licheng Sun
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian 116024, China
- Department
of Chemistry, School of Chemical Science and Engineering, KTH Royal Institute of Technology, Stockholm 10044, Sweden
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41
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Genoni A, La Ganga G, Volpe A, Puntoriero F, Di Valentin M, Bonchio M, Natali M, Sartorel A. Water oxidation catalysis upon evolution of molecular Co(iii) cubanes in aqueous media. Faraday Discuss 2015; 185:121-41. [DOI: 10.1039/c5fd00076a] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The increasing global energy demand has stimulated great recent efforts in investigating new solutions for artificial photosynthesis, a potential source of clean and renewable solar fuel. In particular, according to the generally accepted modular approach aimed at optimising separately the different compartments of the entire process, many studies have focused on the development of catalytic systems for water oxidation to oxygen. While in recent years there have been many reports on new catalytic systems, the mechanism and the active intermediates operating the catalysis have been less investigated. Well-defined, molecular catalysts, constituted by transition metals stabilised by a suitable ligand pool, could help in solving this aspect. However, in some cases molecular species have been shown to evolve to active metal oxides that constitute the other side of this catalysis dichotomy. In this paper, we address the evolution of tetracobalt(iii) cubanes, stabilised by a pyridine/acetate ligand pool, to active species that perform water oxidation to oxygen. Primary evolution of the cubane in aqueous solution is likely initiated by removal of an acetate bridge, opening the coordination sphere of the cobalt centres. This cobalt derivative, where the pristine ligands still impact on the reactivity, shows enhanced electron transfer rates to Ru(bpy)33+(hole scavenging) within a photocatalytic cycle with Ru(bpy)32+as the photosensitiser and S2O82−as the electron sink. A more accentuated evolution occurs under continuous irradiation, where Electron Paramagnetic Resonance (EPR) spectroscopy reveals the formation of Co(ii) intermediates, likely contributing to the catalytic process that evolves oxygen. All together, these results confirm the relevant effect of molecular species, in particular in fostering the rate of the electron transfer processes involved in light activated cycles, pivotal in the design of a photoactive device.
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Affiliation(s)
- Andrea Genoni
- Department of Chemical Sciences
- University of Padova and ITM-CNR
- 35131 Padova
- Italy
| | - Giuseppina La Ganga
- Dipartimento di Scienze Chimiche
- Università di Messina and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare
- sezione di Messina
- 98166 Messina
- Italy
| | - Andrea Volpe
- Department of Chemical Sciences
- University of Padova and ITM-CNR
- 35131 Padova
- Italy
| | - Fausto Puntoriero
- Dipartimento di Scienze Chimiche
- Università di Messina and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare
- sezione di Messina
- 98166 Messina
- Italy
| | - Marilena Di Valentin
- Department of Chemical Sciences
- University of Padova and ITM-CNR
- 35131 Padova
- Italy
| | - Marcella Bonchio
- Department of Chemical Sciences
- University of Padova and ITM-CNR
- 35131 Padova
- Italy
| | - Mirco Natali
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare
- sezione di Ferrara
- 44121 Ferrara
- Italy
| | - Andrea Sartorel
- Department of Chemical Sciences
- University of Padova and ITM-CNR
- 35131 Padova
- Italy
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42
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Kärkäs MD, Verho O, Johnston EV, Åkermark B. Artificial Photosynthesis: Molecular Systems for Catalytic Water Oxidation. Chem Rev 2014; 114:11863-2001. [DOI: 10.1021/cr400572f] [Citation(s) in RCA: 1024] [Impact Index Per Article: 102.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Markus D. Kärkäs
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Oscar Verho
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Eric V. Johnston
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Björn Åkermark
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
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43
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Suo L, Meng RQ, Zheng DM, Wu LX, Bi LH. Preparation, characterization and catalytic activity studies of organoruthenium-supported polyoxotungstates on SBA-15. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lin Suo
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; Changchun 130012 People's Republic of China
| | - Rui-Qi Meng
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; Changchun 130012 People's Republic of China
| | - Da-Ming Zheng
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; Changchun 130012 People's Republic of China
| | - Li-Xin Wu
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; Changchun 130012 People's Republic of China
| | - Li-Hua Bi
- College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials; Jilin University; Changchun 130012 People's Republic of China
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44
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Li T, Zhao W, Chen Y, Li F, Wang C, Tian Y, Fu W. Photochemical, Electrochemical, and Photoelectrochemical Water Oxidation Catalyzed by Water‐Soluble Mononuclear Ruthenium Complexes. Chemistry 2014; 20:13957-64. [DOI: 10.1002/chem.201403872] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Ting‐Ting Li
- Key Laboratory of Photochemical Conversion and Optoelectronic, Materials and HKU‐CAS Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, CAS, Beijing 100190 (P. R. China), Fax: (+86) 10‐6255‐4670
| | - Wei‐Liang Zhao
- College of Chemistry and Engineering, Yunnan Normal University, Kunming 650092 (P. R. China)
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic, Materials and HKU‐CAS Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, CAS, Beijing 100190 (P. R. China), Fax: (+86) 10‐6255‐4670
| | - Fu‐Min Li
- College of Chemistry and Engineering, Yunnan Normal University, Kunming 650092 (P. R. China)
| | - Chuan‐Jun Wang
- Key Laboratory of Photochemical Conversion and Optoelectronic, Materials and HKU‐CAS Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, CAS, Beijing 100190 (P. R. China), Fax: (+86) 10‐6255‐4670
| | - Yong‐Hua Tian
- College of Chemistry and Engineering, Yunnan Normal University, Kunming 650092 (P. R. China)
| | - Wen‐Fu Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic, Materials and HKU‐CAS Joint Laboratory on New Materials, Technical Institute of Physics and Chemistry, University of Chinese Academy of Sciences, CAS, Beijing 100190 (P. R. China), Fax: (+86) 10‐6255‐4670
- College of Chemistry and Engineering, Yunnan Normal University, Kunming 650092 (P. R. China)
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45
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Xiang R, Ding Y, Zhao J. Visible-Light-Induced Water Oxidation Mediated by a Mononuclear-Cobalt(II)-Substituted Silicotungstate. Chem Asian J 2014; 9:3228-37. [DOI: 10.1002/asia.201402483] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 06/19/2014] [Indexed: 11/11/2022]
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46
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Sartorel A, Miró P, Carraro M, Berardi S, Bortolini O, Bagno A, Bo C, Bonchio M. Oxygenation by Ruthenium Monosubstituted Polyoxotungstates in Aqueous Solution: Experimental and Computational Dissection of a Ru(III)-Ru(V) Catalytic Cycle. Chemistry 2014; 20:10932-43. [DOI: 10.1002/chem.201404088] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Indexed: 11/10/2022]
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47
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Ryu J, Nam DH, Lee SH, Park CB. Biocatalytic Photosynthesis with Water as an Electron Donor. Chemistry 2014; 20:12020-5. [DOI: 10.1002/chem.201403301] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Indexed: 11/12/2022]
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48
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Al-Oweini R, Sartorel A, Bassil BS, Natali M, Berardi S, Scandola F, Kortz U, Bonchio M. Photocatalytic Water Oxidation by a Mixed-Valent MnIII3MnIVO3Manganese Oxo Core that Mimics the Natural Oxygen-Evolving Center. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404664] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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49
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Al-Oweini R, Sartorel A, Bassil BS, Natali M, Berardi S, Scandola F, Kortz U, Bonchio M. Photocatalytic water oxidation by a mixed-valent Mn(III)₃Mn(IV)O₃ manganese oxo core that mimics the natural oxygen-evolving center. Angew Chem Int Ed Engl 2014; 53:11182-5. [PMID: 25066304 DOI: 10.1002/anie.201404664] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 06/12/2014] [Indexed: 11/05/2022]
Abstract
The functional core of oxygenic photosynthesis is in charge of catalytic water oxidation by a multi-redox Mn(III)/Mn(IV) manifold that evolves through five electronic states (S(i), where i=0-4). The synthetic model system of this catalytic cycle and of its S0→S4 intermediates is the expected turning point for artificial photosynthesis. The tetramanganese-substituted tungstosilicate [Mn(III)3Mn(IV)O3(CH3COO)3(A-α-SiW9O34)](6-)(Mn4POM) offers an unprecedented mimicry of the natural system in its reduced S0 state; it features a hybrid organic-inorganic coordination sphere and is anchored on a polyoxotungstate. Evidence for its photosynthetic properties when combined with [Ru(bpy)3](2+) and S2O8(2-) is obtained by nanosecond laser flash photolysis; its S0→S1 transition within milliseconds and multiple-hole-accumulating properties were studied. Photocatalytic oxygen evolution is achieved in a buffered medium (pH 5) with a quantum efficiency of 1.7%.
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Affiliation(s)
- Rami Al-Oweini
- ITM-CNR and Dipartimento di Scienze Chimiche, Università di Padova via Marzolo 1, 35131 Padova (Italy) http://www.chimica.unipd.it/NanoMolCat
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50
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Molecule-based water-oxidation catalysts (WOCs): cluster-size-dependent dye-sensitized polyoxometalates for visible-light-driven O2 evolution. Sci Rep 2014; 3:1853. [PMID: 23676701 PMCID: PMC4041258 DOI: 10.1038/srep01853] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2012] [Accepted: 04/30/2013] [Indexed: 01/30/2023] Open
Abstract
From atomic level to understand the cluster-size-dependant behavior of dye-sensitized photocatalysts is very important and helpful to design new photocatalytic materials. Although the relationship between the photocatalytic behaviors and particles' size/shape has been widely investigated by theoretical scientists, the experimental evidences are much less. In this manuscript, we successfully synthesized three new ruthenium dye-sensitized polyoxometalates (POM-n, n relate to different size clusters) with different-sized POM clusters. Under visible-light illumination, all three complexes show the stable O2 evolution with the efficient order POM-3 > POM-2 > POM-1. This cluster-size-dependent catalytic behavior could be explained by the different numbers of M = Ot (terminal oxygen) bonds in each individual cluster because it is well-known that Mo = Ot groups are the catalytically active sites for photooxidation reaction. The proposed mechanism of water oxidation for the dye-sensitized POMs is radical reaction process. This research could open up new perspectives for developing new POM-based WOCs.
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