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Masood Z, Ge Q. Mechanism and Selectivity of Electrochemical Reduction of CO 2 on Metalloporphyrin Catalysts from DFT Studies. Molecules 2023; 28:molecules28010375. [PMID: 36615568 PMCID: PMC9823635 DOI: 10.3390/molecules28010375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Electrochemical reduction of CO2 to value-added chemicals has been hindered by poor product selectivity and competition from hydrogen evolution reactions. This study aims to unravel the origin of the product selectivity and competitive hydrogen evolution reaction on [MP]0 catalysts (M = Fe, Co, Rh and Ir; P is porphyrin ligand) by analyzing the mechanism of CO2 reduction and H2 formation based on the results of density functional theory calculations. Reduction of CO2 to CO and HCOO- proceeds via the formation of carboxylate adduct ([MP-COOH]0 and ([MP-COOH]-) and metal-hydride [MP-H]-, respectively. Competing proton reduction to gaseous hydrogen shares the [MP-H]- intermediate. Our results show that the pKa of [MP-H]0 can be used as an indicator of the CO or HCOO-/H2 preference. Furthermore, an ergoneutral pH has been determined and used to determine the minimum pH at which selective CO2 reduction to HCOO- becomes favorable over the H2 production. These analyses allow us to understand the product selectivity of CO2 reduction on [FeP]0, [CoP]0, [RhP]0 and [IrP]0; [FeP]0 and [CoP]0 are selective for CO whereas [RhP]0 and [IrP]0 are selective for HCOO- while suppressing H2 formation. These descriptors should be applicable to other catalysts in an aqueous medium.
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2
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Improving the Enzymatic Cascade of Reactions for the Reduction of CO2 to CH3OH in Water: From Enzymes Immobilization Strategies to Cofactor Regeneration and Cofactor Suppression. Molecules 2022; 27:molecules27154913. [PMID: 35956865 PMCID: PMC9370104 DOI: 10.3390/molecules27154913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/29/2022] [Accepted: 07/29/2022] [Indexed: 11/17/2022] Open
Abstract
The need to decrease the concentration of CO2 in the atmosphere has led to the search for strategies to reuse such molecule as a building block for chemicals and materials or a source of carbon for fuels. The enzymatic cascade of reactions that produce the reduction of CO2 to methanol seems to be a very attractive way of reusing CO2; however, it is still far away from a potential industrial application. In this review, a summary was made of all the advances that have been made in research on such a process, particularly on two salient points: enzyme immobilization and cofactor regeneration. A brief overview of the process is initially given, with a focus on the enzymes and the cofactor, followed by a discussion of all the advances that have been made in research, on the two salient points reported above. In particular, the enzymatic regeneration of NADH is compared to the chemical, electrochemical, and photochemical conversion of NAD+ into NADH. The enzymatic regeneration, while being the most used, has several drawbacks in the cost and life of enzymes that suggest attempting alternative solutions. The reduction in the amount of NADH used (by converting CO2 electrochemically into formate) or even the substitution of NADH with less expensive mimetic molecules is discussed in the text. Such an approach is part of the attempt made to take stock of the situation and identify the points on which work still needs to be conducted to reach an exploitation level of the entire process.
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3
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Liao Q, Liu W, Meng Z. Strategies for overcoming the limitations of enzymatic carbon dioxide reduction. Biotechnol Adv 2022; 60:108024. [PMID: 35907470 DOI: 10.1016/j.biotechadv.2022.108024] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 12/23/2022]
Abstract
The overexploitation of fossil fuels has led to a significant increase in atmospheric carbon dioxide (CO2) concentrations, thereby causing problems, such as the greenhouse effect. Rapid global climate change has caused researchers to focus on utilizing CO2 in a green and efficient manner. One of the ways to achieve this is by converting CO2 into valuable chemicals via chemical, photochemical, electrochemical, or enzymatic methods. Among these, the enzymatic method is advantageous because of its high specificity and selectivity as well as the mild reaction conditions required. The reduction of CO2 to formate, formaldehyde, and methanol using formate dehydrogenase (FDH), formaldehyde dehydrogenase (FaldDH), and alcohol dehydrogenase (ADH) are attractive routes, respectively. In this review, strategies for overcoming the common limitations of enzymatic CO2 reduction are discussed. First, we present a brief background on the importance of minimizing of CO2 emissions and introduce the three bottlenecks limiting enzymatic CO2 reduction. Thereafter, we explore the different strategies for enzyme immobilization on various support materials. To solve the problem of cofactor consumption, different state-of-the-art cofactor regeneration strategies as well as research on the development of cofactor substitutes and cofactor-free systems are extensively discussed. Moreover, aiming at improving CO2 solubility, biological, physical, and engineering measures are reviewed. Finally, conclusions and future perspectives are presented.
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Affiliation(s)
- Qiyong Liao
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Liangxiang Higher Education Park, Fangshan District, Beijing 102488, PR China
| | - Wenfang Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Liangxiang Higher Education Park, Fangshan District, Beijing 102488, PR China.
| | - Zihui Meng
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Liangxiang Higher Education Park, Fangshan District, Beijing 102488, PR China
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Nikoloudakis E, López-Duarte I, Charalambidis G, Ladomenou K, Ince M, Coutsolelos AG. Porphyrins and phthalocyanines as biomimetic tools for photocatalytic H 2 production and CO 2 reduction. Chem Soc Rev 2022; 51:6965-7045. [PMID: 35686606 DOI: 10.1039/d2cs00183g] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The increasing energy demand and environmental issues caused by the over-exploitation of fossil fuels render the need for renewable, clean, and environmentally benign energy sources unquestionably urgent. The zero-emission energy carrier, H2 is an ideal alternative to carbon-based fuels especially when it is generated photocatalytically from water. Additionally, the photocatalytic conversion of CO2 into chemical fuels can reduce the CO2 emissions and have a positive environmental and economic impact. Inspired by natural photosynthesis, plenty of artificial photocatalytic schemes based on porphyrinoids have been investigated. This review covers the recent advances in photocatalytic H2 production and CO2 reduction systems containing porphyrin or phthalocyanine derivatives. The unique properties of porphyrinoids enable their utilization both as chromophores and as catalysts. The homogeneous photocatalytic systems are initially described, presenting the various approaches for the improvement of photosensitizing activity and the enhancement of catalytic performance at the molecular level. On the other hand, for the development of the heterogeneous systems, numerous methods were employed such as self-assembled supramolecular porphyrinoid nanostructures, construction of organic frameworks, combination with 2D materials and adsorption onto semiconductors. The dye sensitization on semiconductors opened the way for molecular-based dye-sensitized photoelectrochemical cells (DSPECs) devices based on porphyrins and phthalocyanines. The research in photocatalytic systems as discussed herein remains challenging since there are still many limitations making them unfeasible to be used at a large scale application before finding a large-scale application.
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Affiliation(s)
- Emmanouil Nikoloudakis
- University of Crete, Department of Chemistry, Laboratory of Bioinorganic Chemistry, Voutes Campus, Heraklion, Crete, Greece.
| | - Ismael López-Duarte
- Departamento de Química en Ciencias Farmacéuticas, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Georgios Charalambidis
- University of Crete, Department of Chemistry, Laboratory of Bioinorganic Chemistry, Voutes Campus, Heraklion, Crete, Greece.
| | - Kalliopi Ladomenou
- International Hellenic University, Department of Chemistry, Laboratory of Inorganic Chemistry, Agios Loucas, 65404, Kavala Campus, Greece.
| | - Mine Ince
- Department of Natural and Mathematical Sciences, Faculty of Engineering, Tarsus University, Mersin, Turkey.
| | - Athanassios G Coutsolelos
- University of Crete, Department of Chemistry, Laboratory of Bioinorganic Chemistry, Voutes Campus, Heraklion, Crete, Greece. .,Institute of Electronic Structure and Laser (IESL) Foundation for Research and Technology - Hellas (FORTH), Vassilika Vouton, Heraklion, Crete, Greece
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5
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Alpdağtaş S, Turunen O, Valjakka J, Binay B. The challenges of using NAD +-dependent formate dehydrogenases for CO 2 conversion. Crit Rev Biotechnol 2021; 42:953-972. [PMID: 34632901 DOI: 10.1080/07388551.2021.1981820] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In recent years, CO2 reduction and utilization have been proposed as an innovative solution for global warming and the ever-growing energy and raw material demands. In contrast to various classical methods, including chemical, electrochemical, and photochemical methods, enzymatic methods offer a green and sustainable option for CO2 conversion. In addition, enzymatic hydrogenation of CO2 into platform chemicals could be used to produce economically useful hydrogen storage materials, making it a win-win strategy. The thermodynamic and kinetic stability of the CO2 molecule makes its utilization a challenging task. However, Nicotine adenine dinucleotide (NAD+)-dependent formate dehydrogenases (FDHs), which have high selectivity and specificity, are attractive catalysts to overcome this issue and convert CO2 into fuels and renewable chemicals. It is necessary to improve the stability, cofactor necessity, and CO2 conversion efficiency of these enzymes, such as by combining them with appropriate hybrid systems. However, metal-independent, NAD+-dependent FDHs, and their CO2 reduction activity have received limited attention to date. This review outlines the CO2 reduction ability of these enzymes as well as their properties, reaction mechanisms, immobilization strategies, and integration with electrochemical and photochemical systems for the production of formic acid or formate. The biotechnological applications of FDH, future perspectives, barriers to CO2 reduction with FDH, and aspects that must be further developed are briefly summarized. We propose that constructing hybrid systems that include NAD+-dependent FDHs is a promising approach to convert CO2 and strengthen the sustainable carbon bio-economy.
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Affiliation(s)
- Saadet Alpdağtaş
- Department of Biology, Van Yuzuncu Yil University, Tusba, Turkey
| | - Ossi Turunen
- School of Forest Sciences, University of Eastern Finland, Joensuu, Finland
| | - Jarkko Valjakka
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Barış Binay
- Department of Bioengineering, Gebze Technical University, Gebze, Turkey
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6
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Electrochemically driven efficient enzymatic conversion of CO2 to formic acid with artificial cofactors. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101679] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Toyodome T, Amao Y, Higashi M. Photoelectrochemical reduction of CO 2 to formate over a hybrid system of CuInS 2 photocathode and formate dehydrogenase under visible-light irradiation. NEW J CHEM 2021. [DOI: 10.1039/d1nj02481g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A hybrid system with a CdS-modified CuInS2 photocathode and biocatalytic FDH was prepared for photoelectrochemical reduction of CO2 to formate.
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Affiliation(s)
- Takumi Toyodome
- Graduate School of Science
- Osaka City University
- 3-3-138 Sugimoto
- Sumiyoshi-ku
- Osaka 558-8585
| | - Yutaka Amao
- Graduate School of Science
- Osaka City University
- 3-3-138 Sugimoto
- Sumiyoshi-ku
- Osaka 558-8585
| | - Masanobu Higashi
- Research Centre for Artificial Photosynthesis (ReCAP)
- Osaka City University
- 3-3-138 Sugimoto
- Sumiyoshi-ku
- Osaka 558-8585
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8
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Miyaji A, Amao Y. Visible-light driven reduction of CO2 to formate by a water-soluble zinc porphyrin and formate dehydrogenase system with electron-mediated amino and carbamoyl group-modified viologen. NEW J CHEM 2021. [DOI: 10.1039/d1nj00889g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Visible-light-driven CO2 reduction to formate with a system consisting of water-soluble zinc porphyrin, formate dehydrogenase from Candida boidinii and 1-amino-1′-carbamoyl-4,4′-bipyridinium salt as an electron mediator in the presence of triethanolamine was developed.
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Affiliation(s)
- Akimitsu Miyaji
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Yutaka Amao
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
- Research Centre of Artificial Photosynthesis (ReCAP)
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9
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Secundo F, Amao Y. Visible-light-driven CO 2 reduction to formate with a system of water-soluble zinc porphyrin and formate dehydrogenase in ionic liquid/aqueous media. RSC Adv 2020; 10:42354-42362. [PMID: 35516778 PMCID: PMC9057955 DOI: 10.1039/d0ra08594d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 11/09/2020] [Indexed: 01/27/2023] Open
Abstract
Visible-light-driven CO2 reduction to formate with a system consisting of water-soluble zinc tetraphenylporphyrin tetrasulfonate (ZnTPPS), formate dehydrogenase from Candida boidinii (CbFDH) and methylviologen (MV) in the presence of triethanolamine (TEOA) as an electron donor in an ionic liquid, 1-ethyl-3-methylimidazolium dimethyl phosphate ([EMlm][Me2PO4])/aqueous media was investigated. The catalytic activity of CbFDH for formate oxidation to CO2 and CO2 reduction to formate did not decrease significantly even in [EMlm][Me2PO4]/aqueous media, compared with that in aqueous media. The visible-light-driven MV reduction by the photosensitization of ZnTPPS in [EMlm][Me2PO4]/aqueous media proceeds more efficiently than in the aqueous media system. In the visible-light-driven CO2 reduction to formate system of ZnTPPS, MV and CbFDH with [EMlm][Me2PO4]/aqueous media, moreover, the formate production concentration after 180 min decreased by only 20% as compared with the system in aqueous media.
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Affiliation(s)
- Francesco Secundo
- Istituto di Scienze e Tecnologie Chimiche "Giulio Natta" CNR Via Mario Bianco 9 20131 Milano Italy
| | - Yutaka Amao
- Graduate School of Science, Osaka City University 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585 Japan.,Research Centre of Artificial Photosynthesis (ReCAP), Osaka City University 3-3-138 Sugimoto, Sumiyoshi-ku Osaka 558-8585 Japan
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10
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Miyaji A, Amao Y. How does methylviologen cation radical supply two electrons to the formate dehydrogenase in the catalytic reduction process of CO 2 to formate? Phys Chem Chem Phys 2020; 22:18595-18605. [PMID: 32785412 DOI: 10.1039/d0cp02665d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Formate dehydrogenase from Candida boidinii (EC.1.2.1.2; CbFDH) is a commercially available enzyme and can be easily handled as a catalyst for the CO2 reduction to formate in the presence of NADH, single-electron reduced methylviologen (MV+˙) and so on. It was found that the formate oxidation to CO2 with CbFDH was suppressed using the oxidized MV as a co-enzyme and the single-electron reduced MV (MV+˙) was effective for the catalytic activity of CbFDH for the CO2 reduction to formate compared with that using the natural co-enzyme of NADH [Y. Amao, Chem. Lett., 2017, 46, 780-788]. The CO2 reduction to formate catalyzed by CbFDH requires two molecules of the MV+˙. In order to clarify the two-electron reduction process using MV+˙ in the CO2 reduction to formate catalyzed with CbFDH, we attempted enzyme reaction kinetics, electrochemical and quantum chemical analyses. Kinetic parameters obtained from the enzymatic kinetic analysis metric revealed an index of affinity of MV+˙ for CbFDH in the CO2 reduction to formate. From the results of the electrochemical analysis, it was predicted that only one molecule of MV+˙ was bound to CbFDH, and the MV bound to CbFDH was to be necessarily re-reduced by the electron source outside of CbFDH to supply the second electron in the CO2 reduction to formate. From the results of docking simulation and density functional theory (DFT) calculations, it was indicated that one molecule of MV bound to the position close to CO2 in the inner part of the substrate binding pocket of CbFDH contributed to the two-electron CO2 reduction to formate.
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Affiliation(s)
- Akimitsu Miyaji
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 G1-14, Nagatsuda, Midori-Ku, Yokohama 226-8502, Japan
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11
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Miyaji A, Amao Y. Theoretical study on CO2 reduction catalyzed by formate dehydrogenase using the cation radical of a bipyridinium salt with an ionic substituent as a co-enzyme. Phys Chem Chem Phys 2020; 22:26987-26994. [DOI: 10.1039/d0cp05261b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Mechanism for formate dehydrogenase from Candida boidinii catalyzed CO2 reduction to formate with the cation radical of a 4,4′-bipyridinium salt with an ionic substituent as a co-enzyme was clarified by theoretical studies.
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Affiliation(s)
- Akimitsu Miyaji
- School of Materials and Chemical Technology
- Tokyo Institute of Technology
- Yokohama 226-8502
- Japan
| | - Yutaka Amao
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
- Research Centre of Artificial Photosynthesis (ReCAP)
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12
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Katagiri T, Amao Y. Trivalent metal ions promote the malic enzyme-catalyzed building of carbon–carbon bonds from CO2and pyruvate. NEW J CHEM 2020. [DOI: 10.1039/d0nj03449e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
ME is an attractive biocatalyst for building carbon–carbon bonds through carboxylation of pyruvate with CO2. The carboxylation of pyruvate with CO2was promoted by adding a trivalent metal ion. In particular, Al3+accelerates ME-catalyzed carboxylation of pyruvate with CO2.
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Affiliation(s)
| | - Yutaka Amao
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
- Research Centre of Artificial Photosynthesis (ReCAP)
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13
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Ishibashi T, Higashi M, Ikeda S, Amao Y. Photoelectrochemical CO
2
Reduction to Formate with the Sacrificial Reagent Free System of Semiconductor Photocatalysts and Formate Dehydrogenase. ChemCatChem 2019. [DOI: 10.1002/cctc.201901563] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Tomoya Ishibashi
- Graduate School of ScienceOsaka City University 3-3-138 Sugimoto Sumiyoshi-ku Osaka-shi 558-8585 Japan
| | - Masanobu Higashi
- The Advanced Research Institute for Natural Science and Technology DepartmentOsaka City University 3-3-138 Sugimoto Sumiyoshi-ku Osaka-shi 558-8585 Japan
| | - Shigeru Ikeda
- Faculty of Science and TechnologyKonan University 8-9-1 Okamoto, Higashinada-ku Kobe-shi 658-8501 Japan
| | - Yutaka Amao
- Graduate School of ScienceOsaka City University 3-3-138 Sugimoto Sumiyoshi-ku Osaka-shi 558-8585 Japan
- The Advanced Research Institute for Natural Science and Technology DepartmentOsaka City University 3-3-138 Sugimoto Sumiyoshi-ku Osaka-shi 558-8585 Japan
- Research Centre for Artificial Photosynthesis (ReCAP)Osaka City University 3-3-138 Sugimoto Sumiyoshi-ku Osaka-shi 558-8585 Japan
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14
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Jayathilake BS, Bhattacharya S, Vaidehi N, Narayanan SR. Efficient and Selective Electrochemically Driven Enzyme-Catalyzed Reduction of Carbon Dioxide to Formate using Formate Dehydrogenase and an Artificial Cofactor. Acc Chem Res 2019; 52:676-685. [PMID: 30741524 DOI: 10.1021/acs.accounts.8b00551] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Increasing levels of carbon dioxide in the atmosphere and the growing need for energy necessitate a shift toward reliance on renewable energy sources and the utilization of carbon dioxide. Thus, producing carbonaceous fuel by the electrochemical reduction of carbon dioxide has been very appealing. We have focused on addressing the principal challenges of poor selectivity and poor energy efficiency in the electrochemical reduction of carbon dioxide. We have demonstrated here a viable pathway for the efficient and continuous electrochemical reduction of CO2 to formate using the metal-independent enzyme type of formate dehydrogenase (FDH) derived from C andida boidinii yeast. This type of FDH is attractive because it is commercially produced. In natural metabolic processes, this type of metal-independent FDH oxidizes formate to carbon dioxide using NAD+ as a cofactor. We show that FDH can catalyze the reverse process to generate formate when the natural cofactor NADH is replaced with an artificial cofactor, the methyl viologen radical cation. The methyl viologen radical cation is generated in situ, electrochemically. Our approach relies on the special properties of methyl viologen as a "unidirectional" redox cofactor for the conversion of CO2 to formate. Methyl viologen (in the oxidized form) does not catalyze formate oxidation, while the methyl viologen radical cation is an effective cofactor for the reduction of carbon dioxide. Thus, although the thermodynamic driving force is favorable for the oxidized form of methyl viologen to oxidize formate to carbon dioxide, the kinetic factors are not favorable. Only the reverse reaction of carbon dioxide reduction to formate is kinetically viable with the cofactor, methyl viologen radical cation. Binding free energy calculated from atomistic molecular dynamics (MD) simulations consolidate our understanding of these special binding properties of the methyl viologen radical cation and its ability to facilitate the two-electron reduction of carbon dioxide to formate in metal-independent FDH. By carrying out the reactions in a novel three-compartment cell, we have demonstrated the continuous production of formate at high energy efficiency and yield. This cell configuration uses judiciously selected ion-exchange membranes to separate the reaction compartments to preserve the yields of the methyl viologen radical cation and formate. By the electroregeneration of the methyl viologen radical cation at -0.44 V versus the normal hydrogen electrode, we could produce formate at 20 mV negative to the reversible electrode potential for carbon dioxide reduction to formate. Our results are in sharp contrast to the large overpotentials of -800 to -1000 mV required on metal catalysts, vindicating the selectivity and kinetic facility provided by FDH. Formate yields as high as 97% ± 1% could be realized by avoiding the adventitious reoxidation of the methyl viologen radical cation by molecular oxygen. We anticipate that the insights from the electrochemical studies and the MD simulations to be useful in redesigning the metal-independent FDH and alternate artificial cofactors to achieve even higher rates of conversion.
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Affiliation(s)
- Buddhinie S. Jayathilake
- Loker Hydrocarbon Research Institute, Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Supriyo Bhattacharya
- Department of Computational and Quantitative Medicine, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, California 91010, United States
| | - Nagarajan Vaidehi
- Department of Computational and Quantitative Medicine, Beckman Research Institute of the City of Hope, 1500 E. Duarte Road, Duarte, California 91010, United States
| | - S. R. Narayanan
- Loker Hydrocarbon Research Institute, Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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15
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Ishibashi T, Ikeyama S, Ito M, Ikeda S, Amao Y. Light-driven CO2 Reduction to Formic Acid with a Hybrid System of Biocatalyst and Semiconductor Based Photocatalyst. CHEM LETT 2018. [DOI: 10.1246/cl.180731] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Tomoya Ishibashi
- Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Shusaku Ikeyama
- Advanced Research Institute for Natural Science and Technology, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Manami Ito
- Advanced Research Institute for Natural Science and Technology, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Shigeru Ikeda
- Faculty of Science and Engineering, Konan University, Okamoto, Higashinada-ku, Kobe 658-0072, Japan
| | - Yutaka Amao
- Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
- Advanced Research Institute for Natural Science and Technology, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
- Research Centre for Artificial Photosynthesis (ReCAP), Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
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16
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Das S, Balaraju T, Barman S, Sreejith SS, Pochamoni R, Roy S. A Molecular CO 2 Reduction Catalyst Based on Giant Polyoxometalate {Mo 368}. Front Chem 2018; 6:514. [PMID: 30450356 PMCID: PMC6224680 DOI: 10.3389/fchem.2018.00514] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 10/05/2018] [Indexed: 11/21/2022] Open
Abstract
Photocatalytic CO2 reduction in water is one of the most attractive research pursuits of our time. In this article we report a giant polyoxometalate {Mo368} based homogeneous catalytic system, which efficiently reduces CO2 to formic acid with a maximum turnover number (TON) of 27,666, turnover frequency (TOF) of 4,611 h-1 and external quantum efficiency of the reaction is 0.6%. The catalytic system oxidizes water and releases electrons, and these electrons are further utilized for the reduction of CO2 to formic acid. A maximum of 8.3 mmol of formic acid was observed with the loading of 0.3 μmol of the catalyst. Our catalyst material is also stable throughout the reaction. The starting materials for this experiment are CO2 and H2O and the end products are HCOOH and O2. The formic acid formed in this reaction is an important H2 gas carrier and thus significant in renewable energy research.
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Affiliation(s)
- Santu Das
- Eco-Friendly Applied Materials Laboratory, College of Chemistry, Central China Normal University, Wuhan, China
- Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, Materials Science Centre, Mohanpur, Indian Institute of Science Education & Research, Kolkata, India
| | - Tuniki Balaraju
- Eco-Friendly Applied Materials Laboratory, College of Chemistry, Central China Normal University, Wuhan, China
- Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, Materials Science Centre, Mohanpur, Indian Institute of Science Education & Research, Kolkata, India
| | - Soumitra Barman
- Eco-Friendly Applied Materials Laboratory, College of Chemistry, Central China Normal University, Wuhan, China
- Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, Materials Science Centre, Mohanpur, Indian Institute of Science Education & Research, Kolkata, India
| | - S. S. Sreejith
- Eco-Friendly Applied Materials Laboratory, College of Chemistry, Central China Normal University, Wuhan, China
- Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, Materials Science Centre, Mohanpur, Indian Institute of Science Education & Research, Kolkata, India
| | - Ramudu Pochamoni
- Eco-Friendly Applied Materials Laboratory, College of Chemistry, Central China Normal University, Wuhan, China
- Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, Materials Science Centre, Mohanpur, Indian Institute of Science Education & Research, Kolkata, India
| | - Soumyajit Roy
- Eco-Friendly Applied Materials Laboratory, College of Chemistry, Central China Normal University, Wuhan, China
- Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, Materials Science Centre, Mohanpur, Indian Institute of Science Education & Research, Kolkata, India
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Ishibashi T, Ikeyama S, Amao Y. Activation of the catalytic function of formaldehyde dehydrogenase for formate reduction by single-electron reduced methylviologen. NEW J CHEM 2018. [DOI: 10.1039/c8nj02211a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The kinetic properties of formate reduction to formaldehyde with formaldehyde dehydrogenase (FldDH) using single-electron reduced methylviologen (MV˙) as a co-enzyme were clarified.
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Affiliation(s)
- T. Ishibashi
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
| | - S. Ikeyama
- The Advanced Research Institute for Natural Science and Technology
- Osaka City University
- Osaka 558-8585
- Japan
| | - Y. Amao
- Graduate School of Science
- Osaka City University
- Osaka 558-8585
- Japan
- The Advanced Research Institute for Natural Science and Technology
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