51
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Nesterov DS, Nesterova OV, Pombeiro AJ. Homo- and heterometallic polynuclear transition metal catalysts for alkane C H bonds oxidative functionalization: Recent advances. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.08.009] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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52
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Chen HY, Ardo S. Direct observation of sequential oxidations of a titania-bound molecular proxy catalyst generated through illumination of molecular sensitizers. Nat Chem 2017; 10:17-23. [DOI: 10.1038/nchem.2892] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Accepted: 10/17/2017] [Indexed: 02/02/2023]
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53
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Schilling M, Hodel FH, Luber S. Discovery of Open Cubane Core Structures for Biomimetic LnCo 3 (OR) 4 Water Oxidation Catalysts. CHEMSUSCHEM 2017; 10:4561-4569. [PMID: 28941193 DOI: 10.1002/cssc.201701527] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Indexed: 06/07/2023]
Abstract
Bio-mimetic catalysts such as LnCo3 (OR)4 (Ln=Er, Tm; OR=alkoxide) cubanes have recently been in the focus of research for artificial water oxidation processes. Previously, the remarkable adaptability with respect to ligand shell, nuclear structure as well as protonation and oxidation states of those catalysts has been shown to be beneficial for the water oxidation process. We further explored the structural flexibility of those catalysts and present here a series of novel structures in which one metal center is pulled out of the cubane cage. This leads to an open cubane core, which is to some extent reminiscent of observed open/closed cubane-core forms of the oxygen-evolving complex in nature's photosystem II. We investigate how those open cubane core models alter the thermodynamics of the water oxidation cycle and how different solvation approaches influence their stability.
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Affiliation(s)
- Mauro Schilling
- Department of Chemistry C, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Florian H Hodel
- Department of Chemistry C, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
| | - Sandra Luber
- Department of Chemistry C, University of Zurich, Winterthurerstrasse 190, 8057, Zürich, Switzerland
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54
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Shen J, Wang M, Gao J, Han H, Liu H, Sun L. Improvement of Electrochemical Water Oxidation by Fine-Tuning the Structure of Tetradentate N 4 Ligands of Molecular Copper Catalysts. CHEMSUSCHEM 2017; 10:4581-4588. [PMID: 28868648 DOI: 10.1002/cssc.201701458] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Revised: 09/01/2017] [Indexed: 06/07/2023]
Abstract
Two copper complexes, [(L1)Cu(OH2 )](BF4 )2 [1; L1=N,N'-dimethyl-N,N'-bis(pyridin-2-ylmethyl)-1,2-diaminoethane] and [(L2)Cu(OH2 )](BF4 )2 [2, L2=2,7-bis(2-pyridyl)-3,6-diaza-2,6-octadiene], were prepared as molecular water oxidation catalysts. Complex 1 displayed an overpotential (η) of 1.07 V at 1 mA cm-2 and an observed rate constant (kobs ) of 13.5 s-1 at η 1.0 V in pH 9.0 phosphate buffer solution, whereas 2 exhibited a significantly smaller η (0.70 V) to reach 1 mA cm-2 and a higher kobs (50.4 s-1 ) than 1 under identical test conditions. Additionally, 2 displayed better stability than 1 in controlled potential electrolysis experiments with a faradaic efficiency of 94 % for O2 evolution at 1.58 V, when a casing tube was used for the Pt cathode. A possible mechanism for 1- and 2-catalyzed O2 evolution reactions is discussed based on the experimental evidence. These comparative results indicate that fine-tuning the structures of tetradentate N4 ligands can bring about significant change in the performance of copper complexes for electrochemical water oxidation.
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Affiliation(s)
- Junyu Shen
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology (DUT), Dalian, 116024, PR China
| | - Mei Wang
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology (DUT), Dalian, 116024, PR China
| | - Jinsuo Gao
- School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, PR China
| | - Hongxian Han
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Dalian, 116023, PR China
| | - Hong Liu
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology (DUT), Dalian, 116024, PR China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Centre on Molecular Devices, Dalian University of Technology (DUT), Dalian, 116024, PR China
- Department of Chemistry, KTH Royal Institute of Technology, Stockholm, 10044, Sweden
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55
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A bioinspired soluble manganese cluster as a water oxidation electrocatalyst with low overpotential. Nat Catal 2017. [DOI: 10.1038/s41929-017-0004-2] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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56
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Möller F, Piontek S, Miller RG, Apfel UP. From Enzymes to Functional Materials-Towards Activation of Small Molecules. Chemistry 2017; 24:1471-1493. [PMID: 28816379 DOI: 10.1002/chem.201703451] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/15/2017] [Indexed: 12/12/2022]
Abstract
The design of non-noble metal-containing heterogeneous catalysts for the activation of small molecules is of utmost importance for our society. While nature possesses very sophisticated machineries to perform such conversions, rationally designed catalytic materials are rare. Herein, we aim to raise the awareness of the overall common design and working principles of catalysts incorporating aspects of biology, chemistry, and material sciences.
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Affiliation(s)
- Frauke Möller
- Inorganic Chemistry I/ Bioinorganic Chemistry, Ruhr-University Bochum, Universitätsstaße 150, 44801, Bochum, Germany
| | - Stefan Piontek
- Inorganic Chemistry I/ Bioinorganic Chemistry, Ruhr-University Bochum, Universitätsstaße 150, 44801, Bochum, Germany
| | - Reece G Miller
- Inorganic Chemistry I/ Bioinorganic Chemistry, Ruhr-University Bochum, Universitätsstaße 150, 44801, Bochum, Germany
| | - Ulf-Peter Apfel
- Inorganic Chemistry I/ Bioinorganic Chemistry, Ruhr-University Bochum, Universitätsstaße 150, 44801, Bochum, Germany
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57
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Alibabaei L, Brennaman MK, Meyer TJ. Light-Driven Water Splitting in the Dye-Sensitized Photoelectrosynthesis Cell. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/978-981-10-5924-7_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
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58
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Banerjee A, Mondal B, Verma A, Satsangi VR, Shrivastav R, Dey A, Dass S. Enhancing efficiency of Fe2O3 for robust and proficient solar water splitting using a highly dispersed bioinspired catalyst. J Catal 2017. [DOI: 10.1016/j.jcat.2017.04.023] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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59
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60
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61
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Luminescence quenching of tris(4,4′-dinonyl-2,2′-bipyridyl) ruthenium(II) cation with phenolate ions in DMSO. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.09.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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62
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Queyriaux N, Wahyuono RA, Fize J, Gablin C, Wächtler M, Martinez E, Léonard D, Dietzek B, Artero V, Chavarot-Kerlidou M. Aqueous Photocurrent Measurements Correlated to Ultrafast Electron Transfer Dynamics at Ruthenium Tris Diimine-Sensitized NiO Photocathodes. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:5891-5904. [PMID: 28676835 PMCID: PMC5493983 DOI: 10.1021/acs.jpcc.6b12536] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Understanding the structural and electronic factors governing the efficiency of dye-sensitized NiO photocathodes is essential to optimize solar fuel production in photoelectrochemical cells (PECs). For these purpose, three different ruthenium dyes, bearing either two or four methylphosphonate anchoring groups and either a bipyridine or a dipyridophenazine ancillary ligand, were synthesized and grafted onto NiO films. These photoelectrodes were fully characterized by XPS, ToF-SIMS, UV-vis absorption, time-resolved emission and femtosecond transient absorption spectroscopies. Increasing the number of anchoring groups from two to four proved beneficial for the grafting efficiency. No significant modification of the electronic properties compared to the parent photosensitizer was observed, in accordance with the non-conjugated nature of the grafted linker. The photoelectrochemical activity of the dye-sensitized NiO electrodes was assessed in fully aqueous medium in the presence of an irreversible electron acceptor and photocurrents reaching 190 μA.cm-2 were recorded. The transient absorption study revealed the presence of two charge recombination pathways for each of the sensitizers and evidenced a stabilized charge separated state in the dppz derivative, supporting its superior photoelectrochemical activity.
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Affiliation(s)
- Nicolas Queyriaux
- Laboratoire de Chimie et Biologie des Métaux, UMR 5249 University Grenoble Alpes, CNRS, CEA, 17 rue des Martyrs, 38000 Grenoble, France
| | - Ruri A. Wahyuono
- Leibniz Institute of Photonic Technology (IPHT) Jena e. V., Albert-Einstein-Strasse 9, Jena 07745, Germany
- Institute for Physical Chemistry and Center for Energy and Environmental Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, Jena 07743, Germany
| | - Jennifer Fize
- Laboratoire de Chimie et Biologie des Métaux, UMR 5249 University Grenoble Alpes, CNRS, CEA, 17 rue des Martyrs, 38000 Grenoble, France
| | - Corinne Gablin
- Institut des Sciences Analytiques, UMR 5280 (Université Claude Bernard Lyon 1 /CNRS / ENS de Lyon), 5 rue de la Doua, 69100 Villeurbanne, France
| | - Maria Wächtler
- Leibniz Institute of Photonic Technology (IPHT) Jena e. V., Albert-Einstein-Strasse 9, Jena 07745, Germany
- Institute for Physical Chemistry and Center for Energy and Environmental Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, Jena 07743, Germany
| | - Eugénie Martinez
- CEA, Leti, MINATEC Campus, 17 rue des Martyrs, 38054 Grenoble Cedex 9, France
| | - Didier Léonard
- Institut des Sciences Analytiques, UMR 5280 (Université Claude Bernard Lyon 1 /CNRS / ENS de Lyon), 5 rue de la Doua, 69100 Villeurbanne, France
| | - Benjamin Dietzek
- Leibniz Institute of Photonic Technology (IPHT) Jena e. V., Albert-Einstein-Strasse 9, Jena 07745, Germany
- Institute for Physical Chemistry and Center for Energy and Environmental Chemistry, Friedrich Schiller University Jena, Helmholtzweg 4, Jena 07743, Germany
| | - Vincent Artero
- Laboratoire de Chimie et Biologie des Métaux, UMR 5249 University Grenoble Alpes, CNRS, CEA, 17 rue des Martyrs, 38000 Grenoble, France
| | - Murielle Chavarot-Kerlidou
- Laboratoire de Chimie et Biologie des Métaux, UMR 5249 University Grenoble Alpes, CNRS, CEA, 17 rue des Martyrs, 38000 Grenoble, France
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63
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Li YY, Ye K, Siegbahn PEM, Liao RZ. Mechanism of Water Oxidation Catalyzed by a Mononuclear Manganese Complex. CHEMSUSCHEM 2017; 10:903-911. [PMID: 27925413 DOI: 10.1002/cssc.201601538] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 12/01/2016] [Indexed: 06/06/2023]
Abstract
The design and synthesis of biomimetic Mn complexes to catalyze oxygen evolution is a very appealing goal because water oxidation in nature employs a Mn complex. Recently, the mononuclear Mn complex [LMnII (H2 O)2 ]2+ [1, L=Py2 N(tBu)2 , Py=pyridyl] was reported to catalyze water oxidation electrochemically at an applied potential of 1.23 V at pH 12.2 in aqueous solution. Density functional calculations were performed to elucidate the mechanism of water oxidation promoted by this catalyst. The calculations showed that 1 can lose two protons and one electron readily to produce [LMnIII (OH)2 ]+ (2), which then undergoes two sequential proton-coupled electron-transfer processes to afford [LMnV OO]+ (4). The O-O bond formation can occur through direct coupling of the two oxido ligands or through nucleophilic attack of water. These two mechanisms have similar barriers of approximately 17 kcal mol-1 . The further oxidation of 4 to generate [LMnVI OO]2+ (5), which enables O-O bond formation, has a much higher barrier. In addition, ligand degradation by C-H activation has a similar barrier to that for the O-O bond formation, and this explains the relatively low turnover number of this catalyst.
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Affiliation(s)
- Ying-Ying Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Ke Ye
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
| | - Per E M Siegbahn
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-10691, Stockholm, Sweden
| | - Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China
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64
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A DFT/B3LYP study of the mechanisms of the O 2 formation reaction catalyzed by the [(terpy)(H 2O)Mn III(O) 2Mn IV(OH 2)(terpy)](NO 3) 3 complex: A paradigm for photosystem II. J Inorg Biochem 2017; 171:52-66. [PMID: 28365435 DOI: 10.1016/j.jinorgbio.2017.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 01/28/2017] [Accepted: 02/17/2017] [Indexed: 11/20/2022]
Abstract
We present a theoretical study of the reaction pathway for dioxygen molecular formation catalyzed by the [(terpy)(H2O)MnIII(O)2MnIV(OH2) (terpy)](NO3)3 (terpy=2,2':6',2″-terpyridine) complex based on DFT-B3LYP calculations. In the initial state of the reaction, a partial oxido radical (0.44 spins) is formed ligated to Mn. This radical is involved in a nucleophylic attack by bulk water in the OO bond reaction formation step, in which the oxido fractional unpaired electron is delocalized toward the outermost Mn of the μ-oxo bridge, instead of the ligated Mn center. The reaction then follows with a series of proton-coupled electron transfer steps, in which the oxidation state, as well as the bond strength of the OO moiety increase, while the OOMn(1) bond gets weaker until O2 is released. In this model, basic acetate ions from the buffer solution capture protons in the proton-transfer steps. In each step there is reduction of the OOMn(1) binding strength, with concomitant increase of the OO bond strength, which culminates with the release of O2 in the last step. This last step is entropy driven, while formation of hydroperoxide and superoxide moieties is enthalpy driven. According with experiments, the rate-limiting step is the double oxidation of Mn(IV,III) or peroxymonosulfate binding, which occur prior to the OO bond formation step. This supports our findings that the barriers of all intermediate steps are below the experimental barrier of 19-21kcal/mol. The implications of these findings for understanding photosynthetic water-splitting catalysis are also discussed.
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65
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Pattanayak S, Chowdhury DR, Garai B, Singh KK, Paul A, Dhar BB, Gupta SS. Electrochemical Formation of Fe V (O) and Mechanism of Its Reaction with Water During O-O Bond Formation. Chemistry 2017; 23:3414-3424. [PMID: 28012231 DOI: 10.1002/chem.201605061] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Indexed: 12/21/2022]
Abstract
A detailed electrochemical investigation of a series of iron complexes (biuret-modified tetraamido iron macrocycles FeIII -bTAML), including the first electrochemical generation of FeV (O), and demonstration of their efficacy as homogeneous catalysts for electrochemical water oxidation (WO) in aqueous medium are reported. Spectroelectrochemical and mass spectral studies indicated FeV (O) as the active oxidant, formed due to two redox transitions, which were assigned as FeIV (O)/FeIII (OH2 ) and FeV (O)/FeIV (O). The spectral properties of both of these high-valent iron oxo species perfectly match those of their chemically synthesised versions, which were thoroughly characterised by several spectroscopic techniques. The O-O bond-formation step occurs by nucleophilic attack of H2 O on FeV (O). A kinetic isotope effect of 3.2 indicates an atom-proton transfer (APT) mechanism. The reaction of chemically synthesised FeV (O) in CH3 CN and water was directly probed by electrochemistry and was found to be first-order in water. The pKa value of the buffer base plays a critical role in the rate-determining step by increasing the reaction rate several-fold. The electronic effect on redox potential, WO rates, and onset overpotential was studied by employing a series of iron complexes. The catalytic activity was enhanced by the presence of electron-withdrawing groups on the bTAML framework. Changing the substituents from OMe to NO2 resulted in an eightfold increase in reaction rate, while the overpotential increased threefold.
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Affiliation(s)
- Santanu Pattanayak
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory, Dr. HomiBhabha Road, Pune, 411008, India
| | - Debarati Roy Chowdhury
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP, 462066, India
| | - Bikash Garai
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory, Dr. HomiBhabha Road, Pune, 411008, India
| | - Kundan K Singh
- Chemical Engineering and Process Development Division, CSIR-National Chemical Laboratory, Dr. HomiBhabha Road, Pune, 411008, India
| | - Amit Paul
- Department of Chemistry, Indian Institute of Science Education and Research (IISER), Bhopal, MP, 462066, India
| | - Basab B Dhar
- Department of Chemistry, Shiv Nadar University, Goutam Buddha Nagar, UP, 201314, India
| | - Sayam Sen Gupta
- Indian Institute of Science Education and Research-Kolkata, Mohanpur, West Bengal, 741246, India
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66
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Li CT, Lin RYY, Lin JT. Sensitizers for Aqueous-Based Solar Cells. Chem Asian J 2017; 12:486-496. [PMID: 28070969 DOI: 10.1002/asia.201601627] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/08/2017] [Indexed: 11/11/2022]
Abstract
Aqueous dye-sensitized solar cells (DSSCs) are attractive due to their sustainability, the use of water as a safe solvent for the redox mediators, and their possible applications in photoelectrochemical water splitting. However, the higher tendency of dye leaching by water and the lower wettability of dye molecules are two major obstacles that need to be tackled for future applications of aqueous DSSCs. Sensitizers designed for aqueous DSSCs are discussed based on their functions, such as modification of the molecular skeleton and the anchoring group for better stability against dye leaching by water, and the incorporation of hydrophilic entities into the dye molecule or the addition of a surfactant to the system to increase the wettability of the dye for more facile dye regeneration. Surface treatment of the photoanode to deter dye leaching or improve the wettability of the dye molecule is also discussed. Redox mediators designed for aqueous DSSCs are also discussed. The review also includes quantum-dot-sensitized solar cells, with a focus on improvements in QD loading and suppression of interfacial charge recombination at the photoanode.
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Affiliation(s)
- Chun-Ting Li
- Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan
| | - Ryan Yeh-Yung Lin
- Department of Chemistry, University of California, Berkeley, CA, 94720, USA
| | - Jiann T Lin
- Institute of Chemistry, Academia Sinica, Nankang, Taipei, 11529, Taiwan
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67
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Tang MH, Chakthranont P, Jaramillo TF. Top-down fabrication of fluorine-doped tin oxide nanopillar substrates for solar water splitting. RSC Adv 2017. [DOI: 10.1039/c7ra02937c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nanopillar fluorine-doped tin oxide (FTO) substrates fabricated by nanosphere lithography and argon milling enhance the photoelectrochemical performance of WO3 photoanodes.
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Affiliation(s)
- Maureen H. Tang
- Department of Chemical and Biological Engineering
- Drexel University
- Philadelphia
- USA
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68
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Acharya SS, Winther-Jensen B, Spiccia L, Ohlin CA. Rates of Water Exchange in 2,2′-Bipyridine and 1,10-Phenanthroline Complexes of CoII and MnII. Aust J Chem 2017. [DOI: 10.1071/ch16667] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The rates and activation parameters of water exchange at pH 3.0 have been determined using variable temperature 17O NMR spectroscopy for four CoII complexes and one MnII complex: [Co(bpy)(H2O)4]2+, [Co(bpy)2 (H2O)2]2+, [Co(phen)-(H2O)4]2+, [Co(phen)2 (H2O)2]2+, and [Mn(bpy)(H2O)4]2+ (bpy = 2,2′-bipyridyl and phen = 1,10-phenanthroline). Substitution of aquo ligands with 1,10-phenanthroline or 2,2′-bipyridyl leads to an increase in the rate of exchange in the manganese complexes, from k298 (1.8 ± 0.1) × 107 s−1 for [Mn(H2O)6]2+ to (7.2 ± 0.3) × 107 s−1 for [Mn(phen)2 (H2O)2]2+, whereas the trends are more complex for the cobalt complexes. We have used the new data in conjunction with literature data for similar complexes to analyse the effect of M–OH2 distance and degree of substitution.
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69
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Takijiri K, Morita K, Nakazono T, Sakai K, Ozawa H. Highly stable chemisorption of dyes with pyridyl anchors over TiO2: application in dye-sensitized photoelectrochemical water reduction in aqueous media. Chem Commun (Camb) 2017; 53:3042-3045. [DOI: 10.1039/c6cc10321a] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The “pyridyl anchoring technique” enables constant photocurrent density in a water reduction dye-sensitized photoelectrochemical cell with a polypyridyl ruthenium sensitizer having pyridyl anchors (Ru-py).
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Affiliation(s)
- Kohei Takijiri
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Nishi-ku
- Japan
| | - Kohei Morita
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Nishi-ku
- Japan
| | - Takashi Nakazono
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Nishi-ku
- Japan
| | - Ken Sakai
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Nishi-ku
- Japan
| | - Hironobu Ozawa
- Education Center for Global Leaders in Molecular Systems for Devices
- Kyushu University
- Nishi-ku
- Japan
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70
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Xu P, Zhou T, Intan NN, Hu S, Zheng X. Rational Ligand Design for an Efficient Biomimetic Water Splitting Complex. J Phys Chem A 2016; 120:10033-10042. [DOI: 10.1021/acs.jpca.6b10154] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Penglin Xu
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Ting Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Nadia N. Intan
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Shaojin Hu
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Xiao Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
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71
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Yuan H, Lunt RR, Thompson JI, Ofoli RY. Electrodeposition of Ni/Ni(OH)2Catalytic Films for the Hydrogen Evolution Reaction Produced by using Cyclic Voltammetry. ChemElectroChem 2016. [DOI: 10.1002/celc.201600572] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hao Yuan
- Department of Chemical Engineering and Materials Science; Michigan State University, 2100 Engineering Building; 428 S. Shaw Lane East Lansing MI 48824 USA
| | - Richard R. Lunt
- Department of Chemical Engineering and Materials Science; Michigan State University, 2100 Engineering Building; 428 S. Shaw Lane East Lansing MI 48824 USA
| | - Joseph I. Thompson
- Department of Chemical Engineering and Materials Science; Michigan State University, 2100 Engineering Building; 428 S. Shaw Lane East Lansing MI 48824 USA
| | - Robert Y. Ofoli
- Department of Chemical Engineering and Materials Science; Michigan State University, 2100 Engineering Building; 428 S. Shaw Lane East Lansing MI 48824 USA
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72
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Hoogeveen DA, Fournier M, Bonke SA, Fang XY, Mozer AJ, Mishra A, Bäuerle P, Simonov AN, Spiccia L. Photo-electrocatalytic hydrogen generation at dye-sensitised electrodes functionalised with a heterogeneous metal catalyst. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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73
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Liu X, Inagaki S, Gong J. Heterogene molekulare Systeme für eine photokatalytische CO2-Reduktion mit Wasseroxidation. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600395] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology; Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 China
| | - Shinji Inagaki
- Toyota Central R&D Laboratories, Inc.; Nagakute Aichi 480-1192 Japan
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology; Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 China
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74
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Liu X, Inagaki S, Gong J. Heterogeneous Molecular Systems for Photocatalytic CO2Reduction with Water Oxidation. Angew Chem Int Ed Engl 2016; 55:14924-14950. [DOI: 10.1002/anie.201600395] [Citation(s) in RCA: 248] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao Liu
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology; Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 China
| | - Shinji Inagaki
- Toyota Central R&D Laboratories, Inc.; Nagakute Aichi 480-1192 Japan
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology; Tianjin University; Collaborative Innovation Center of Chemical Science and Engineering; Tianjin 300072 China
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75
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Yamamoto M, Tanaka K. Artificial Molecular Photosynthetic Systems: Towards Efficient Photoelectrochemical Water Oxidation. Chempluschem 2016; 81:1028-1044. [DOI: 10.1002/cplu.201600236] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Masanori Yamamoto
- Department of Molecular Engineering; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Koji Tanaka
- Advanced Chemical Technology Center in Kyoto; Institute for Integrated Cell-Material Sciences; Kyoto University; Jibucho 105, Fushimi-ku Kyoto 612-8374 Japan
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76
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Li H, Li F, Wang Y, Bai L, Yu F, Sun L. Visible-Light-Driven Water Oxidation on a Photoanode by Supramolecular Assembly of Photosensitizer and Catalyst. Chempluschem 2016; 81:1056-1059. [DOI: 10.1002/cplu.201500539] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/10/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Hua Li
- State Key Laboratory of Fine Chemicals; DUT-KTH Joint Education and Research Center on Molecular Devices; Dalian University of Technology (DUT); 116024 Dalian P. R. China
| | - Fei Li
- State Key Laboratory of Fine Chemicals; DUT-KTH Joint Education and Research Center on Molecular Devices; Dalian University of Technology (DUT); 116024 Dalian P. R. China
| | - Yong Wang
- State Key Laboratory of Fine Chemicals; DUT-KTH Joint Education and Research Center on Molecular Devices; Dalian University of Technology (DUT); 116024 Dalian P. R. China
| | - Lichen Bai
- State Key Laboratory of Fine Chemicals; DUT-KTH Joint Education and Research Center on Molecular Devices; Dalian University of Technology (DUT); 116024 Dalian P. R. China
| | - Fengshou Yu
- State Key Laboratory of Fine Chemicals; DUT-KTH Joint Education and Research Center on Molecular Devices; Dalian University of Technology (DUT); 116024 Dalian P. R. China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals; DUT-KTH Joint Education and Research Center on Molecular Devices; Dalian University of Technology (DUT); 116024 Dalian P. R. China
- Department of Chemistry; School of Chemical Science and Engineering; KTH Royal Institute of Technology; 10044 Stockholm Sweden
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77
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Chandra D, Tsuriya R, Sato T, Takama D, Abe N, Kajita M, Li D, Togashi T, Kurihara M, Saito K, Yui T, Yagi M. Characterization of Interfacial Charge-Transfer Photoexcitation of Polychromium-Oxo-Electrodeposited TiO2
as an Earth-Abundant Photoanode for Water Oxidation Driven by Visible Light. Chempluschem 2016; 81:1116-1122. [DOI: 10.1002/cplu.201600288] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Debraj Chandra
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Ryougen Tsuriya
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Tsubasa Sato
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Daisuke Takama
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Naoto Abe
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Masashi Kajita
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Dong Li
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Takanari Togashi
- Department of Material and Biological Chemistry; Faculty of Science; Yamagata University; 1-4-12 Kojirakawa-machi Yamagata 990-8560 Japan
| | - Masato Kurihara
- Department of Material and Biological Chemistry; Faculty of Science; Yamagata University; 1-4-12 Kojirakawa-machi Yamagata 990-8560 Japan
| | - Kenji Saito
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Tatsuto Yui
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
| | - Masayuki Yagi
- Department of Materials Science and Technology; Faculty of Engineering; Niigata University; 8050 Ikarashi-2 Niigata 950-2181 Japan
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78
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Brennaman MK, Dillon RJ, Alibabaei L, Gish MK, Dares CJ, Ashford DL, House RL, Meyer GJ, Papanikolas JM, Meyer TJ. Finding the Way to Solar Fuels with Dye-Sensitized Photoelectrosynthesis Cells. J Am Chem Soc 2016; 138:13085-13102. [PMID: 27654634 DOI: 10.1021/jacs.6b06466] [Citation(s) in RCA: 207] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The dye-sensitized photoelectrosynthesis cell (DSPEC) integrates high bandgap, nanoparticle oxide semiconductors with the light-absorbing and catalytic properties of designed chromophore-catalyst assemblies. The goals are photoelectrochemical water splitting into hydrogen and oxygen and reduction of CO2 by water to give oxygen and carbon-based fuels. Solar-driven water oxidation occurs at a photoanode and water or CO2 reduction at a cathode or photocathode initiated by molecular-level light absorption. Light absorption is followed by electron or hole injection, catalyst activation, and catalytic water oxidation or water/CO2 reduction. The DSPEC is of recent origin but significant progress has been made. It has the potential to play an important role in our energy future.
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Affiliation(s)
- M Kyle Brennaman
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Robert J Dillon
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Leila Alibabaei
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Melissa K Gish
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Christopher J Dares
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Dennis L Ashford
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Ralph L House
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Gerald J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - John M Papanikolas
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
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79
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Ho PY, Zheng B, Mark D, Wong WY, McCamant DW, Eisenberg R. Chromophoric Dyads for the Light-Driven Generation of Hydrogen: Investigation of Factors in the Design of Multicomponent Photosensitizers for Proton Reduction. Inorg Chem 2016; 55:8348-58. [DOI: 10.1021/acs.inorgchem.6b00496] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Po-Yu Ho
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
- Institute
of Molecular Functional Materials, Department of Chemistry, and Institute
of Advanced Materials, Hong Kong Baptist University, Waterloo
Road, Kowloon Tong, Hong
Kong, P. R. China
- HKBU Institute
of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China
| | - Bo Zheng
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Daniel Mark
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Wai-Yeung Wong
- Institute
of Molecular Functional Materials, Department of Chemistry, and Institute
of Advanced Materials, Hong Kong Baptist University, Waterloo
Road, Kowloon Tong, Hong
Kong, P. R. China
- HKBU Institute
of Research and Continuing Education, Shenzhen Virtual University Park, Shenzhen 518057, P. R. China
| | - David W. McCamant
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Richard Eisenberg
- Department
of Chemistry, University of Rochester, Rochester, New York 14627, United States
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80
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Wang H, Xin Z, Xiang R, Liu S, Gao X, Li C. Functional Polypyridine Co Complex as an Efficient Catalyst for Photo-Induced Water Oxidation. CHINESE J CHEM 2016. [DOI: 10.1002/cjoc.201600223] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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81
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Caramori S, Ronconi F, Argazzi R, Carli S, Boaretto R, Busatto E, Bignozzi CA. Solar Energy Conversion in Photoelectrochemical Systems. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/978-3-319-31671-0_2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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82
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Oey M, Sawyer AL, Ross IL, Hankamer B. Challenges and opportunities for hydrogen production from microalgae. PLANT BIOTECHNOLOGY JOURNAL 2016; 14:1487-99. [PMID: 26801871 PMCID: PMC5066674 DOI: 10.1111/pbi.12516] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 11/12/2015] [Accepted: 11/16/2015] [Indexed: 05/11/2023]
Abstract
The global population is predicted to increase from ~7.3 billion to over 9 billion people by 2050. Together with rising economic growth, this is forecast to result in a 50% increase in fuel demand, which will have to be met while reducing carbon dioxide (CO2 ) emissions by 50-80% to maintain social, political, energy and climate security. This tension between rising fuel demand and the requirement for rapid global decarbonization highlights the need to fast-track the coordinated development and deployment of efficient cost-effective renewable technologies for the production of CO2 neutral energy. Currently, only 20% of global energy is provided as electricity, while 80% is provided as fuel. Hydrogen (H2 ) is the most advanced CO2 -free fuel and provides a 'common' energy currency as it can be produced via a range of renewable technologies, including photovoltaic (PV), wind, wave and biological systems such as microalgae, to power the next generation of H2 fuel cells. Microalgae production systems for carbon-based fuel (oil and ethanol) are now at the demonstration scale. This review focuses on evaluating the potential of microalgal technologies for the commercial production of solar-driven H2 from water. It summarizes key global technology drivers, the potential and theoretical limits of microalgal H2 production systems, emerging strategies to engineer next-generation systems and how these fit into an evolving H2 economy.
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Affiliation(s)
- Melanie Oey
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Qld, Australia
| | | | - Ian Lawrence Ross
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Qld, Australia
| | - Ben Hankamer
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, Qld, Australia
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83
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Zhang L, Gao Y, Ding X. A PMMA overlayer improving the surface-bound stability of photoanode for water splitting. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.125] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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84
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Kobayashi A, Furugori S, Yoshida M, Kato M. Photocatalytic Water Oxidation Driven by Functionalized Ru(II) Photosensitizers: Effects of Molecular Charge and Immobilization of Molecular Photosensitizer. CHEM LETT 2016. [DOI: 10.1246/cl.160146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University
- Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST)
| | - Sogo Furugori
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Masaki Yoshida
- Department of Chemistry, Faculty of Science, Hokkaido University
| | - Masako Kato
- Department of Chemistry, Faculty of Science, Hokkaido University
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85
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Gujral SS, Simonov AN, Higashi M, Fang XY, Abe R, Spiccia L. Highly Dispersed Cobalt Oxide on TaON as Efficient Photoanodes for Long-Term Solar Water Splitting. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00629] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Satnam Singh Gujral
- School
of Chemistry and the ARC Centre of Excellence for Electromaterials
Science, Monash University, Clayton, Victoria 3800, Australia
| | - Alexandr N. Simonov
- School
of Chemistry and the ARC Centre of Excellence for Electromaterials
Science, Monash University, Clayton, Victoria 3800, Australia
| | - Masanobu Higashi
- Department
of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Xi-Ya Fang
- Monash
Centre for Electron Microscopy, Monash University, Clayton, Victoria 3800, Australia
| | - Ryu Abe
- Department
of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Leone Spiccia
- School
of Chemistry and the ARC Centre of Excellence for Electromaterials
Science, Monash University, Clayton, Victoria 3800, Australia
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86
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Koelewijn JM, Lutz M, Dzik WI, Detz RJ, Reek JNH. Reaction Progress Kinetic Analysis as a Tool To Reveal Ligand Effects in Ce(IV)-Driven IrCp*-Catalyzed Water Oxidation. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00297] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Jacobus M. Koelewijn
- Van
‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands
| | - Martin Lutz
- Crystal and Structural
Chemistry Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH Utrecht, Netherlands
| | - Wojciech I. Dzik
- Van
‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands
| | - Remko J. Detz
- Van
‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands
| | - Joost N. H. Reek
- Van
‘t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands
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87
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Schwarz B, Forster J, Goetz MK, Yücel D, Berger C, Jacob T, Streb C. Lichtinduzierte Wasseroxidation durch ein molekulares Manganvanadiumoxid. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601799] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Benjamin Schwarz
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Johannes Forster
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - McKenna K. Goetz
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
| | - Duygu Yücel
- Institut für Elektrochemie; Universität Ulm; Albert-Einstein-Allee 47 89081 Ulm Deutschland
| | - Claudia Berger
- Institut für Elektrochemie; Universität Ulm; Albert-Einstein-Allee 47 89081 Ulm Deutschland
| | - Timo Jacob
- Institut für Elektrochemie; Universität Ulm; Albert-Einstein-Allee 47 89081 Ulm Deutschland
| | - Carsten Streb
- Institut für Anorganische Chemie I; Universität Ulm; Albert-Einstein-Allee 11 89081 Ulm Deutschland
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88
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Schwarz B, Forster J, Goetz MK, Yücel D, Berger C, Jacob T, Streb C. Visible-Light-Driven Water Oxidation by a Molecular Manganese Vanadium Oxide Cluster. Angew Chem Int Ed Engl 2016; 55:6329-33. [PMID: 27062440 DOI: 10.1002/anie.201601799] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Indexed: 11/08/2022]
Abstract
Photosynthetic water oxidation in plants occurs at an inorganic calcium manganese oxo cluster, which is known as the oxygen evolving complex (OEC), in photosystem II. Herein, we report a synthetic OEC model based on a molecular manganese vanadium oxide cluster, [Mn4 V4 O17 (OAc)3 ](3-) . The compound is based on a [Mn4 O4 ](6+) cubane core, which catalyzes the homogeneous, visible-light-driven oxidation of water to molecular oxygen and is stabilized by a tripodal [V4 O13 ](6-) polyoxovanadate and three acetate ligands. When combined with the photosensitizer [Ru(bpy)3 ](2+) and the oxidant persulfate, visible-light-driven water oxidation with turnover numbers of approximately 1150 and turnover frequencies of about 1.75 s(-1) is observed. Electrochemical, mass-spectrometric, and spectroscopic studies provide insight into the cluster stability and reactivity. This compound could serve as a model for the molecular structure and reactivity of the OEC and for heterogeneous metal oxide water-oxidation catalysts.
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Affiliation(s)
- Benjamin Schwarz
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Johannes Forster
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - McKenna K Goetz
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany
| | - Duygu Yücel
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Claudia Berger
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Carsten Streb
- Institute of Inorganic Chemistry I, Ulm University, Albert-Einstein-Allee 11, 89081, Ulm, Germany.
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89
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Seitz LC, Nordlund D, Gallo A, Jaramillo TF. Tuning Composition and Activity of Cobalt Titanium Oxide Catalysts for the Oxygen Evolution Reaction. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.200] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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90
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Wang L, Duan L, Ambre RB, Daniel Q, Chen H, Sun J, Das B, Thapper A, Uhlig J, Dinér P, Sun L. A nickel (II) PY5 complex as an electrocatalyst for water oxidation. J Catal 2016. [DOI: 10.1016/j.jcat.2015.12.003] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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91
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Rosser TE, Gross MA, Lai YH, Reisner E. Precious-metal free photoelectrochemical water splitting with immobilised molecular Ni and Fe redox catalysts. Chem Sci 2016; 7:4024-4035. [PMID: 30155045 PMCID: PMC6013811 DOI: 10.1039/c5sc04863j] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 02/11/2016] [Indexed: 11/21/2022] Open
Abstract
Splitting water into hydrogen and oxygen with 3d transition metal molecular catalysts and light has been accomplished.
Splitting water into hydrogen and oxygen with molecular catalysts and light has been a long-established challenge. Approaches in homogeneous systems have been met with little success and the integration of molecular catalysts in photoelectrochemical cells is challenging due to inaccessibility and incompatibility of functional hybrid molecule/material electrodes with long-term stability in aqueous solution. Here, we present the first example of light-driven water splitting achieved with precious-metal-free molecular catalysts driving both oxygen and hydrogen evolution reactions. Mesoporous TiO2 was employed as a low-cost scaffold with long-term stability for anchoring a phosphonic acid-modified nickel(ii) bis-diphosphine catalyst (NiP) for electrocatalytic proton reduction. A turnover number of 600 mol H2 per mol NiP was achieved after 8 h controlled-potential electrolysis at a modest overpotential of 250 mV. X-ray photoelectron, UV-vis and IR spectroscopies confirmed that the molecular structure of the Ni catalyst remains intact after prolonged hydrogen production, thereby reasserting the suitability of molecular catalysts in the development of effective, hydrogen-evolving materials. The relatively mild operating conditions of a pH 3 aqueous solution allowed this molecule-catalysed cathode to be combined with a molecular Fe(ii) catalyst-modified WO3 photoanode in a photoelectrochemical cell. Water splitting into H2 and O2 was achieved under solar light illumination with an applied bias of >0.6 V, which is below the thermodynamic potential (1.23 V) for water splitting and therefore allowed the storage of solar energy in the fuel H2.
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Affiliation(s)
- Timothy E Rosser
- Christian Doppler Laboratory for Sustainable SynGas Chemistry , Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB1 2EW , UK .
| | - Manuela A Gross
- Christian Doppler Laboratory for Sustainable SynGas Chemistry , Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB1 2EW , UK .
| | - Yi-Hsuan Lai
- Christian Doppler Laboratory for Sustainable SynGas Chemistry , Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB1 2EW , UK .
| | - Erwin Reisner
- Christian Doppler Laboratory for Sustainable SynGas Chemistry , Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB1 2EW , UK .
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92
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Kuriyama Y, Kikukawa Y, Suzuki K, Yamaguchi K, Mizuno N. Water- and Temperature-Triggered Reversible Structural Transformation of Tetranuclear Cobalt(II) Cores Sandwiched by Polyoxometalates. Chemistry 2016; 22:3962-6. [DOI: 10.1002/chem.201600139] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Yosuke Kuriyama
- Department of Applied Chemistry; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Yuji Kikukawa
- Department of Applied Chemistry; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
- Department of Chemistry; Division of Material Sciences; Graduate School of Natural Science and Technology; Kanazawa University; Kakuma-machi Kanazawa 920-1192 Japan
| | - Kosuke Suzuki
- Department of Applied Chemistry; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Kazuya Yamaguchi
- Department of Applied Chemistry; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Noritaka Mizuno
- Department of Applied Chemistry; School of Engineering; The University of Tokyo; 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
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93
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Hodel FH, Luber S. What Influences the Water Oxidation Activity of a Bioinspired Molecular CoII4O4 Cubane? An In-Depth Exploration of Catalytic Pathways. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02507] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Florian H. Hodel
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Sandra Luber
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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94
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Liu H, Moré R, Grundmann H, Cui C, Erni R, Patzke GR. Promoting Photochemical Water Oxidation with Metallic Band Structures. J Am Chem Soc 2016; 138:1527-35. [DOI: 10.1021/jacs.5b10215] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hongfei Liu
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - René Moré
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Henrik Grundmann
- Physics
Institute, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Chunhua Cui
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Rolf Erni
- Electron
Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Greta R. Patzke
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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95
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Zhang G, Zang S, Lin L, Lan ZA, Li G, Wang X. Ultrafine Cobalt Catalysts on Covalent Carbon Nitride Frameworks for Oxygenic Photosynthesis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:2287-2296. [PMID: 26728317 DOI: 10.1021/acsami.5b11167] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The rational cooperation of sustainable catalysts with suitable light-harvesting semiconductors to fabricate photosynthetic device/machinery has been regarded as an ideal technique to alleviate the current worldwide energy and environmental issues. Cobalt based species (e.g., Co-Pi, Co3O4, and Co-cubene) have attracted particular attentions because they are earth-abundant, cost-acceptable, and more importantly, it shows comparable water oxidation activities to the noble metal based catalysts (e.g., RuO2, IrO2). In this contribution, we compared two general cocatalysts modification strategies, based on the surface depositing and bulk doping of ultrafine cobalt species into the sustainable graphitic carbon nitride (g-C3N4) polymer networks for oxygenic photosynthesis by splitting water into oxygen, electrons, and protons. The chemical backbone of g-C3N4 does not alter after both engineering modifications; however, in comparison with the bulk doping, the optical and electronic properties of the surface depositing samples are efficiently promoted, and the photocatalytic water oxidation activities are increased owing to much more exposed active sites, reduced overpotential for oxygen evolution and the accelerated interface charge mobility. This paper underlines the advantage of surface engineering to establish efficient advanced polymeric composites for water oxidation, and it opens new insights into the architectural design of binary hybrid photocatalysts with high reactivity and further utilizations in the fields of energy and environment.
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Affiliation(s)
- Guigang Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Shaohong Zang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Lihua Lin
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Zhi-An Lan
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Guosheng Li
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
| | - Xinchen Wang
- State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University , Fuzhou 350002, China
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96
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Najafpour MM, Renger G, Hołyńska M, Moghaddam AN, Aro EM, Carpentier R, Nishihara H, Eaton-Rye JJ, Shen JR, Allakhverdiev SI. Manganese Compounds as Water-Oxidizing Catalysts: From the Natural Water-Oxidizing Complex to Nanosized Manganese Oxide Structures. Chem Rev 2016; 116:2886-936. [PMID: 26812090 DOI: 10.1021/acs.chemrev.5b00340] [Citation(s) in RCA: 332] [Impact Index Per Article: 41.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
All cyanobacteria, algae, and plants use a similar water-oxidizing catalyst for water oxidation. This catalyst is housed in Photosystem II, a membrane-protein complex that functions as a light-driven water oxidase in oxygenic photosynthesis. Water oxidation is also an important reaction in artificial photosynthesis because it has the potential to provide cheap electrons from water for hydrogen production or for the reduction of carbon dioxide on an industrial scale. The water-oxidizing complex of Photosystem II is a Mn-Ca cluster that oxidizes water with a low overpotential and high turnover frequency number of up to 25-90 molecules of O2 released per second. In this Review, we discuss the atomic structure of the Mn-Ca cluster of the Photosystem II water-oxidizing complex from the viewpoint that the underlying mechanism can be informative when designing artificial water-oxidizing catalysts. This is followed by consideration of functional Mn-based model complexes for water oxidation and the issue of Mn complexes decomposing to Mn oxide. We then provide a detailed assessment of the chemistry of Mn oxides by considering how their bulk and nanoscale properties contribute to their effectiveness as water-oxidizing catalysts.
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Affiliation(s)
| | - Gernot Renger
- Institute of Chemistry, Max-Volmer-Laboratory of Biophysical Chemistry, Technical University Berlin , Straße des 17. Juni 135, D-10623 Berlin, Germany
| | - Małgorzata Hołyńska
- Fachbereich Chemie und Wissenschaftliches Zentrum für Materialwissenschaften (WZMW), Philipps-Universität Marburg , Hans-Meerwein-Straße, D-35032 Marburg, Germany
| | | | - Eva-Mari Aro
- Department of Biochemistry and Food Chemistry, University of Turku , 20014 Turku, Finland
| | - Robert Carpentier
- Groupe de Recherche en Biologie Végétale (GRBV), Université du Québec à Trois-Rivières , C.P. 500, Trois-Rivières, Québec G9A 5H7, Canada
| | - Hiroshi Nishihara
- Department of Chemistry, School of Science, The University of Tokyo , 7-3-1, Hongo, Bunkyo-Ku, Tokyo 113-0033, Japan
| | - Julian J Eaton-Rye
- Department of Biochemistry, University of Otago , P.O. Box 56, Dunedin 9054, New Zealand
| | - Jian-Ren Shen
- Photosynthesis Research Center, Graduate School of Natural Science and Technology, Faculty of Science, Okayama University , Okayama 700-8530, Japan.,Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences , Beijing 100093, China
| | - Suleyman I Allakhverdiev
- Controlled Photobiosynthesis Laboratory, Institute of Plant Physiology, Russian Academy of Sciences , Botanicheskaya Street 35, Moscow 127276, Russia.,Institute of Basic Biological Problems, Russian Academy of Sciences , Pushchino, Moscow Region 142290, Russia.,Department of Plant Physiology, Faculty of Biology, M.V. Lomonosov Moscow State University , Leninskie Gory 1-12, Moscow 119991, Russia
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97
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Click KA, Beauchamp DR, Huang Z, Chen W, Wu Y. Membrane-Inspired Acidically Stable Dye-Sensitized Photocathode for Solar Fuel Production. J Am Chem Soc 2016; 138:1174-9. [PMID: 26744766 DOI: 10.1021/jacs.5b07723] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kevin A. Click
- Department
of Chemistry and Biochemistry, The Ohio State University, 100
West 18th Avenue, Columbus, Ohio 43210, United States
| | - Damian R. Beauchamp
- Department
of Chemistry and Biochemistry, The Ohio State University, 100
West 18th Avenue, Columbus, Ohio 43210, United States
| | - Zhongjie Huang
- Department
of Chemistry and Biochemistry, The Ohio State University, 100
West 18th Avenue, Columbus, Ohio 43210, United States
| | - Weilin Chen
- Key
Laboratory of Polyoxometalate Science of Ministry of Education, Department
of Chemistry, Northeast Normal University, Changchun, Jilin 130024, China
| | - Yiying Wu
- Department
of Chemistry and Biochemistry, The Ohio State University, 100
West 18th Avenue, Columbus, Ohio 43210, United States
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98
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Ishizuka T, Watanabe A, Kotani H, Hong D, Satonaka K, Wada T, Shiota Y, Yoshizawa K, Ohara K, Yamaguchi K, Kato S, Fukuzumi S, Kojima T. Homogeneous Photocatalytic Water Oxidation with a Dinuclear CoIII–Pyridylmethylamine Complex. Inorg Chem 2016; 55:1154-64. [DOI: 10.1021/acs.inorgchem.5b02336] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tomoya Ishizuka
- Department of Chemistry, Graduate School
of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Atsuko Watanabe
- Department of Chemistry, Graduate School
of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Hiroaki Kotani
- Department of Chemistry, Graduate School
of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Dachao Hong
- Department of Chemistry, Graduate School
of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Kenta Satonaka
- Department of Chemistry, Graduate School
of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
| | - Tohru Wada
- Department of Chemistry,
College of Science, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501, Japan
| | - Yoshihito Shiota
- Institute for Materials
Chemistry and Engineering, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials
Chemistry and Engineering, Kyushu University, Motooka, Nishi-ku, Fukuoka 819-0395, Japan
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Nishi-ku, Kyoto 615-8520, Japan
| | - Kazuaki Ohara
- Faculty
of Pharmaceutical Science at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Kentaro Yamaguchi
- Faculty
of Pharmaceutical Science at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan
| | - Satoshi Kato
- Department
of Material and Life Science, Graduate School of Engineering, Osaka University, and ALCA, Japan Science and Technology Agency, Suita, Osaka 565-0871, Japan
| | - Shunichi Fukuzumi
- Department
of Material and Life Science, Graduate School of Engineering, Osaka University, and ALCA, Japan Science and Technology Agency, Suita, Osaka 565-0871, Japan
- Faculty of Science and Technology, Meijo University, ALCA and SENTAN, Japan Science and Technology Agency (JST), Tempaku, Nagoya, Aichi 468-8502, Japan
- Department
of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Takahiko Kojima
- Department of Chemistry, Graduate School
of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
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99
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Kim HJ, Seo J, Rose MJ. H2 Photogeneration Using a Phosphonate-Anchored Ni-PNP Catalyst on a Band-Edge-Modified p-Si(111)|AZO Construct. ACS APPLIED MATERIALS & INTERFACES 2016; 8:1061-1066. [PMID: 26741653 DOI: 10.1021/acsami.5b09902] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We report the fabrication of a {semiconductor}|{metal oxide}|{molecular catalyst} construct for the photogeneration of dihydrogen (H2) under illumination, including band-edge modulation of the semiconductor electrode depending on the identity of Si(111)-R and the metal oxide. Briefly, a synergistic band-edge modulation is observed upon (i) the introduction of a p-Si|n-AZO heterojunction and (ii) introduction of an organic dimethoxyphenyl (diMeOPh) group at the heterojunction interface; the AZO also serves as a transparent and conductive conduit, which was capped with an ultrathin layer (20 Å) of amorphous TiO2 for stability. A phosphonate-appended PNP ligand and its Ni complex were then adsorbed to the p/n heterojunction for photoelectrochemical H2 generation (figures of merit: Vonset ≈ + 0.03 V vs NHE, Jmax ≈ 8 mA cm(-2) at 60 mM TsOH).
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Affiliation(s)
- Hark Jin Kim
- Department of Chemistry, University of Texas at Austin , Austin, Texas 78712, United States
| | - Junhyeok Seo
- Department of Chemistry, University of Texas at Austin , Austin, Texas 78712, United States
| | - Michael J Rose
- Department of Chemistry, University of Texas at Austin , Austin, Texas 78712, United States
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100
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Rao CNR, Lingampalli SR. Generation of Hydrogen by Visible Light-Induced Water Splitting with the Use of Semiconductors and Dyes. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:16-23. [PMID: 26425963 DOI: 10.1002/smll.201500420] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 05/20/2015] [Indexed: 05/12/2023]
Abstract
Photosynthesis that occurs in plants involves both the oxidation of water and the reduction of carbon dioxide. Plants carry out these reactions with ease, by involving electron-transport chains. In this article, hydrogen generation by the reduction of water in the laboratory by using semiconductor nanostructures through artificial photosynthesis is examined. Dye-sensitized photochemical generation of hydrogen from water is also discussed. Hydrogen generation by these means has great technological relevance, since it is an environmentally friendly fuel. The way in which oxygen can be generated by the oxidation of water using metal oxide catalysts is also shown.
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Affiliation(s)
- C N R Rao
- CSIR Centre of Excellence in Chemistry, New Chemistry Unit, International Centre for Materials Science and Sheikh Saqr Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur PO, Bangalore, 560 064, India
| | - Srinivasa Rao Lingampalli
- CSIR Centre of Excellence in Chemistry, New Chemistry Unit, International Centre for Materials Science and Sheikh Saqr Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur PO, Bangalore, 560 064, India
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