1
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Hutchison P, Smith LE, Rooney CL, Wang H, Hammes-Schiffer S. Proton-Coupled Electron Transfer Mechanisms for CO 2 Reduction to Methanol Catalyzed by Surface-Immobilized Cobalt Phthalocyanine. J Am Chem Soc 2024. [PMID: 38984971 DOI: 10.1021/jacs.4c05444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Immobilized cobalt phthalocyanine (CoPc) is a highly promising architecture for the six-proton, six-electron reduction of CO2 to methanol. This electroreduction process relies on proton-coupled electron transfer (PCET) reactions that can occur by sequential or concerted mechanisms. Immobilization on a conductive support such as carbon nanotubes or graphitic flakes can fundamentally alter the PCET mechanisms. We use density functional theory (DFT) calculations of CoPc adsorbed on an explicit graphitic surface model to investigate intermediates in the electroreduction of CO2 to methanol. Our calculations show that the alignment of the CoPc and graphitic electronic states influences the reductive chemistry. These calculations also distinguish between charging the graphitic surface and reducing the CoPc and adsorbed intermediates as electrons are added to the system. This analysis allows us to identify the chemical transformations that are likely to be concerted PCET, defined for these systems as the mechanism in which protonation of a CO2 reduction intermediate is accompanied by electron abstraction from the graphitic surface to the adsorbate without thermodynamically stable intermediates. This work establishes a mechanistic pathway for methanol production that is consistent with experimental observations and provides fundamental insight into how immobilization of the CoPc impacts its CO2 reduction chemistry.
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Affiliation(s)
- Phillips Hutchison
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Logan E Smith
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Conor L Rooney
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale University, West Haven, Connecticut 06516, United States
| | - Hailiang Wang
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale University, West Haven, Connecticut 06516, United States
| | - Sharon Hammes-Schiffer
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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2
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Alvarez-Hernandez JL, Zhang X, Cui K, Deziel AP, Hammes-Schiffer S, Hazari N, Piekut N, Zhong M. Long-range electrostatic effects from intramolecular Lewis acid binding influence the redox properties of cobalt-porphyrin complexes. Chem Sci 2024; 15:6800-6815. [PMID: 38725508 PMCID: PMC11077573 DOI: 10.1039/d3sc06177a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/02/2024] [Indexed: 05/12/2024] Open
Abstract
A CoII-porphyrin complex (1) with an appended aza-crown ether for Lewis acid (LA) binding was synthesized and characterized. NMR spectroscopy and electrochemistry show that cationic group I and II LAs (i.e., Li+, Na+, K+, Ca2+, Sr2+, and Ba2+) bind to the aza-crown ether group of 1. The binding constant for Li+ is comparable to that observed for a free aza-crown ether. LA binding causes an anodic shift in the CoII/CoI couple of between 10 and 40 mV and also impacts the CoIII/CoII couple. The magnitude of the anodic shift of the CoII/CoI couple varies linearly with the strength of the LA as determined by the pKa of the corresponding metal-aqua complex, with dications giving larger shifts than monocations. The extent of the anodic shift of the CoII/CoI couple also increases as the ionic strength of the solution decreases. This is consistent with electric field effects being responsible for the changes in the redox properties of 1 upon LA binding and provides a novel method to tune the reduction potential. Density functional theory calculations indicate that the bound LA is 5.6 to 6.8 Å away from the CoII ion, demonstrating that long-range electrostatic effects, which do not involve changes to the primary coordination sphere, are responsible for the variations in redox chemistry. Compound 1 was investigated as a CO2 reduction electrocatalyst and shows high activity but rapid decomposition.
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Affiliation(s)
| | - Xiaowei Zhang
- Department of Chemical and Environmental Engineering, Yale University New Haven CT 06520 USA
| | - Kai Cui
- Department of Chemistry, Princeton University Princeton NJ 08544 USA
| | | | | | - Nilay Hazari
- Department of Chemistry, Yale University New Haven CT 06520 USA
| | - Nicole Piekut
- Department of Chemistry, Yale University New Haven CT 06520 USA
| | - Mingjiang Zhong
- Department of Chemical and Environmental Engineering, Yale University New Haven CT 06520 USA
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3
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Kumar P, Tyagi VP, Ghosh M. Exploring the Multifarious Role of the Ligand in Electrocatalytic Hydrogen Evolution Reaction Pathways. Chemistry 2023; 29:e202302195. [PMID: 37728113 DOI: 10.1002/chem.202302195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/18/2023] [Accepted: 09/18/2023] [Indexed: 09/21/2023]
Abstract
In recent years, researchers have shifted their focus towards investigating the redox properties of ancillary ligand backbones for small-molecule activation. Several metal complexes have been reported for the electrocatalytic H2 evolution reaction (HER), providing valuable mechanistic insights. This process involves efficient coupling of electrons and protons. Redox-active ligands stipulate internal electron transfer and promote effective orbital overlap between metal and ligand, thereby, enabling efficient proton-coupled electron transfer reactions. Understanding such catalytic mechanisms requires thorough spectroscopic and computational analyses. Herein, we summarize recent examples of molecular electrocatalysts based on 3d transition metals that have significantly influenced mechanistic pathways, thus, emphasizing the multifaceted role of metal-ligand cooperativity.
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Affiliation(s)
- Pankaj Kumar
- Department of Chemistry, Ashoka University, Plot #2, Rajiv Gandhi Education City, National Capital Region, 131029, Sonipat, Haryana, India
| | - Vyom Prakash Tyagi
- Department of Chemistry, Ashoka University, Plot #2, Rajiv Gandhi Education City, National Capital Region, 131029, Sonipat, Haryana, India
| | - Munmun Ghosh
- Department of Chemistry, Ashoka University, Plot #2, Rajiv Gandhi Education City, National Capital Region, 131029, Sonipat, Haryana, India
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4
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Alvarez-Hernandez JL, Salamatian AA, Sopchak AE, Bren KL. Hydrogen evolution catalysis by a cobalt porphyrin peptide: A proposed role for porphyrin propionic acid groups. J Inorg Biochem 2023; 249:112390. [PMID: 37801884 DOI: 10.1016/j.jinorgbio.2023.112390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/11/2023] [Accepted: 09/26/2023] [Indexed: 10/08/2023]
Abstract
Cobalt microperoxidase-11 (CoMP11-Ac) is a cobalt porphyrin-peptide catalyst for hydrogen (H2) evolution from water. Herein, we assess electrocatalytic activity of CoMP11-Ac from pH 1.0-10.0. This catalyst remains intact and active under highly acidic conditions (pH 1.0) that are desirable for maximizing H2 evolution activity. Analysis of electrochemical data indicate that H2 evolution takes place by two pH-dependent mechanisms. At pH < 4.3, a proton transfer mechanism involving the propionic acid groups of the porphyrin is proposed, decreasing the catalytic overpotential by 280 mV.
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Affiliation(s)
| | - Alison A Salamatian
- Department of Chemistry, University of Rochester. Rochester, NY 14627-0216, United States.
| | - Andrew E Sopchak
- Department of Chemistry, University of Rochester. Rochester, NY 14627-0216, United States.
| | - Kara L Bren
- Department of Chemistry, University of Rochester. Rochester, NY 14627-0216, United States.
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5
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Montgomery CL, Amtawong J, Jordan AM, Kurtz DA, Dempsey JL. Proton transfer kinetics of transition metal hydride complexes and implications for fuel-forming reactions. Chem Soc Rev 2023; 52:7137-7169. [PMID: 37750006 DOI: 10.1039/d3cs00355h] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
Proton transfer reactions involving transition metal hydride complexes are prevalent in a number of catalytic fuel-forming reactions, where the proton transfer kinetics to or from the metal center can have significant impacts on the efficiency, selectivity, and stability associated with the catalytic cycle. This review correlates the often slow proton transfer rate constants of transition metal hydride complexes to their electronic and structural descriptors and provides perspective on how to exploit these parameters to control proton transfer kinetics to and from the metal center. A toolbox of techniques for experimental determination of proton transfer rate constants is discussed, and case studies where proton transfer rate constant determination informs fuel-forming reactions are highlighted. Opportunities for extending proton transfer kinetic measurements to additional systems are presented, and the importance of synergizing the thermodynamics and kinetics of proton transfer involving transition metal hydride complexes is emphasized.
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Affiliation(s)
- Charlotte L Montgomery
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599-3290, USA.
| | - Jaruwan Amtawong
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599-3290, USA.
| | - Aldo M Jordan
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599-3290, USA.
| | - Daniel A Kurtz
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599-3290, USA.
| | - Jillian L Dempsey
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, 27599-3290, USA.
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6
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Hutchison P, Kaminsky CJ, Surendranath Y, Hammes-Schiffer S. Concerted Proton-Coupled Electron Transfer to a Graphite Adsorbed Metalloporphyrin Occurs by Band to Bond Electron Redistribution. ACS CENTRAL SCIENCE 2023; 9:927-936. [PMID: 37252356 PMCID: PMC10214502 DOI: 10.1021/acscentsci.3c00186] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Indexed: 05/31/2023]
Abstract
Surface immobilized catalysts are highly promising candidates for a range of energy conversion reactions, and atomistic mechanistic understanding is essential for their rational design. Cobalt tetraphenylporphyrin (CoTPP) nonspecifically adsorbed on a graphitic surface has been shown to undergo concerted proton-coupled electron transfer (PCET) in aqueous solution. Herein, density functional theory calculations on both cluster and periodic models representing π-stacked interactions or axial ligation to a surface oxygenate are performed. As the electrode surface is charged due to applied potential, the adsorbed molecule experiences the electrical polarization of the interface and nearly the same electrostatic potential as the electrode, regardless of the adsorption mode. PCET occurs by electron abstraction from the surface to the CoTPP concerted with protonation to form a cobalt hydride, thereby circumventing Co(II/I) redox. Specifically, the Co(II) d-state localized orbital interacts with a proton from solution and an electron from the delocalized graphitic band states to produce a Co(III)-H bonding orbital below the Fermi level, corresponding to redistribution of electrons from the band states to the bonding states. These insights have broad implications for electrocatalysis by chemically modified electrodes and surface immobilized catalysts.
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Affiliation(s)
- Phillips Hutchison
- Department
of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Corey J. Kaminsky
- Department
of Chemistry, Massachusetts Institute of
Technology, Cambridge, Massachusetts 02139, United States
| | - Yogesh Surendranath
- Department
of Chemistry, Massachusetts Institute of
Technology, Cambridge, Massachusetts 02139, United States
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7
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Leone L, Sgueglia G, La Gatta S, Chino M, Nastri F, Lombardi A. Enzymatic and Bioinspired Systems for Hydrogen Production. Int J Mol Sci 2023; 24:ijms24108605. [PMID: 37239950 DOI: 10.3390/ijms24108605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/30/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
The extraordinary potential of hydrogen as a clean and sustainable fuel has sparked the interest of the scientific community to find environmentally friendly methods for its production. Biological catalysts are the most attractive solution, as they usually operate under mild conditions and do not produce carbon-containing byproducts. Hydrogenases promote reversible proton reduction to hydrogen in a variety of anoxic bacteria and algae, displaying unparallel catalytic performances. Attempts to use these sophisticated enzymes in scalable hydrogen production have been hampered by limitations associated with their production and stability. Inspired by nature, significant efforts have been made in the development of artificial systems able to promote the hydrogen evolution reaction, via either electrochemical or light-driven catalysis. Starting from small-molecule coordination compounds, peptide- and protein-based architectures have been constructed around the catalytic center with the aim of reproducing hydrogenase function into robust, efficient, and cost-effective catalysts. In this review, we first provide an overview of the structural and functional properties of hydrogenases, along with their integration in devices for hydrogen and energy production. Then, we describe the most recent advances in the development of homogeneous hydrogen evolution catalysts envisioned to mimic hydrogenases.
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Affiliation(s)
- Linda Leone
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Gianmattia Sgueglia
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Salvatore La Gatta
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Marco Chino
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Flavia Nastri
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
| | - Angela Lombardi
- Department of Chemical Sciences, University of Naples Federico II, 80126 Naples, Italy
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8
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Wu F, Jiang F, Yang J, Dai W, Lan D, Shen J, Fang Z. Investigation of Molecular Mechanism of Cobalt Porphyrin Catalyzed CO 2 Electrochemical Reduction in Ionic Liquid by In-Situ SERS. Molecules 2023; 28:molecules28062747. [PMID: 36985719 PMCID: PMC10059646 DOI: 10.3390/molecules28062747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/12/2023] [Accepted: 03/15/2023] [Indexed: 03/30/2023] Open
Abstract
This study explores the electrochemical reduction in CO2 using room temperature ionic liquids as solvents or electrolytes, which can minimize the environmental impact of CO2 emissions. To design effective CO2 electrochemical systems, it is crucial to identify intermediate surface species and reaction products in situ. The study investigates the electrochemical reduction in CO2 using a cobalt porphyrin molecular immobilized electrode in 1-n-butyl-3-methyl imidazolium tetrafluoroborate (BMI.BF4) room temperature ionic liquids, through in-situ surface-enhanced Raman spectroscopy (SERS) and electrochemical technique. The results show that the highest faradaic efficiency of CO produced from the electrochemical reduction in CO2 can reach 98%. With the potential getting more negative, the faradaic efficiency of CO decreases while H2 is produced as a competitive product. Besides, water protonates porphyrin macrocycle, producing pholorin as the key intermediate for the hydrogen evolution reaction, leading to the out-of-plane mode of the porphyrin molecule. Absorption of CO2 by the ionic liquids leads to the formation of BMI·CO2 adduct in BMI·BF4 solution, causing vibration modes at 1100, 1457, and 1509 cm-1. However, the key intermediate of CO2-· radical is not observed. The υ(CO) stretching mode of absorbed CO is affected by the electrochemical Stark effect, typical of CO chemisorbed on a top site.
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Affiliation(s)
- Feng Wu
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Material and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Fengshuo Jiang
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Material and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Jiahao Yang
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Material and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Weiyan Dai
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Material and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Donghui Lan
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Material and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Jing Shen
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Material and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Zhengjun Fang
- Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, School of Material and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
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9
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Ahmad Lone I, Kumar R. Exploring the Electronic Influence of β‐Br Substitutions in CuTPP on Electrochemical Overall Water Splitting in Alkaline Medium. ChemistrySelect 2022. [DOI: 10.1002/slct.202202765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ishfaq Ahmad Lone
- Department of Chemistry National Institute of Technology Srinagar 190006 India
| | - Ravi Kumar
- Department of Chemistry National Institute of Technology Srinagar 190006 India
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10
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Singh K, Kundu A, Adhikari D. Ligand-Based Redox: Catalytic Applications and Mechanistic Aspects. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kirti Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, Manauli 140306, India
| | - Abhishek Kundu
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, Manauli 140306, India
| | - Debashis Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research Mohali, SAS Nagar, Manauli 140306, India
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11
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Sun R, Liu M, Zheng SL, Dogutan DK, Costentin C, Nocera DG. Proton-coupled electron transfer of macrocyclic ring hydrogenation: The chlorinphlorin. Proc Natl Acad Sci U S A 2022; 119:e2122063119. [PMID: 35533271 PMCID: PMC9171799 DOI: 10.1073/pnas.2122063119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/07/2022] [Indexed: 11/18/2022] Open
Abstract
SignificanceThe chemical reduction of unsaturated bonds occurs by hydrogenation with H2 as the reductant. Conversely, in biology, the unavailability of H2 engenders the typical reduction of unsaturated bonds with electrons and protons from different cofactors, requiring olefin hydrogenation to occur by proton-coupled electron transfer (PCET). Moreover, the redox noninnocence of tetrapyrrole macrocycles furnishes unusual PCET intermediates, including the phlorin, which is an intermediate in tetrapyrrole ring reductions. Whereas the phlorin of a porphyrin is well established, the phlorin of a chlorin is enigmatic. By controlling the PCET reactivity of a chlorin, including the use of a hangman functionality to manage the proton transfer, the formation of a chlorinphlorin by PCET is realized, and the mechanism for its formation is defined.
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Affiliation(s)
- Rui Sun
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138
| | - Mengran Liu
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138
| | - Shao-Liang Zheng
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138
| | - Dilek K. Dogutan
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138
| | - Cyrille Costentin
- Université Grenoble Alpes, CNRS, Grenoble, 38000 France
- Université Paris Cité, Paris, 75013 France
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138
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12
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Berthelot M, Akhssas F, Dimé AKD, Bousfiha A, Echaubard J, Souissi G, Cattey H, Lucas D, Fleurat-Lessard P, Devillers CH. Stepwise Oxidative C-C Coupling and/or C-N Fusion of Zn(II) meso-Pyridin-2-ylthio-porphyrins. Inorg Chem 2022; 61:7387-7405. [PMID: 35500211 DOI: 10.1021/acs.inorgchem.2c00435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and characterization of zinc(II) meso-pyridin-2-ylthio-porphyrins are presented in this manuscript. The (electro)chemical oxidation of [5-(pyridin-2-ylthio)-10,20-bis(p-tolyl)-15-phenylporphyrinato] zinc(II) or [5,15-bis(pyridin-2-ylthio)-10,20-bis(p-tolyl)porphyrinato] zinc(II) leads to the formation of one or two C-N bond(s) by intramolecular nucleophilic attack of the peripheral thiopyridinyl fragment(s) on the neighboring β-pyrrolic position(s) (C-N fusion reaction). In addition, the chemical oxidation of [5-(pyridin-2-ylthio)-10,20-bis(p-tolyl)porphyrinato] zinc(II), i.e., bearing one free meso position, mainly affords the meso,meso-dimer. Further stepwise electrochemical oxidation selectively produces the mono and bis C-N fused meso,meso-dimer. The resulting pyridinium derivatives exhibit important changes in their physicochemical properties (NMR, UV-vis, CV) as compared to their initial unfused precursors. Also, the X-ray crystallographic structures of three unfused monomers, one unfused meso,meso-dimer, and two C-N fused monomers are presented.
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Affiliation(s)
- Mathieu Berthelot
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Fatima Akhssas
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Abdou K D Dimé
- Département de Chimie, UFR SATIC, Université Alioune Diop de Bambey, MGWC+9M6 Bambey, Senegal
| | - Asmae Bousfiha
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Julie Echaubard
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Ghada Souissi
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Hélène Cattey
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Dominique Lucas
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Paul Fleurat-Lessard
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
| | - Charles H Devillers
- UMR6302, CNRS, Univ. Bourgogne Franche-Comté, Institut de Chimie Moléculaire de l'Université de Bourgogne, 9 avenue Alain Savary, 21000 Dijon, France
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13
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Porphyrin-catalyzed electrochemical hydrogen evolution reaction. Metal-centered and ligand-centered mechanisms. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214430] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Wu Q, Li M, He S, Xiong Y, Zhang P, Huang H, Chen L, Huang F, Li F. The hangman effect boosts hydrogen production by a manganese terpyridine complex. Chem Commun (Camb) 2022; 58:5128-5131. [PMID: 35380563 DOI: 10.1039/d2cc00757f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The manganese terpyridine complex 1 with a coordinated carboxylate in the axial position was obtained in situ. By virtue of a hangman effect, complex 1 catalyzes electrochemical hydrogen evolution from phenol in acetonitrile solution with a turnover frequency of 525 s-1 at a low overpotential of ca. 230 mV.
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Affiliation(s)
- Qianqian Wu
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Minghong Li
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Shuanglin He
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Ying Xiong
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Ping Zhang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Heyan Huang
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Lin Chen
- State Key Laboratory of Environment-Friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P. R. China.
| | - Fang Huang
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, P. R. China
| | - Fei Li
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, P. R. China
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15
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Gorantla KR, Mallik BS. Catalytic Mechanism of Competing Proton Transfer Events from Water and Acetic Acid by [Co II(bpbH 2)Cl 2] for Water Splitting Processes. J Phys Chem A 2022; 126:1321-1328. [PMID: 35172100 DOI: 10.1021/acs.jpca.1c07353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We performed first principles simulations to explore the water reduction process of the cobalt complex [CoII(bpbH2)Cl2], where bpbH2 = N,N'-bis(2'-pyridine carboxamide)-1,2-benzene. We considered the sequence steps of electron reduction followed by the proton addition process to observe the hydrogen evolution process. An experimental study of the catalyst showed that the increase in the acetic acid concentration triggers catalytic current and reduction of Co(II) to Co(I), and protonation occurred, yielding a Co(III)-H intermediate. Therefore, we used water and acetic acid as the proton sources. We compare the proton transfer kinetics from both the water and acetic acid. The reduction potentials and proton transfer kinetics from water or acetic acid to the reaction center were studied in a DMF solvent through the implicit solvent model. The first proton transfer from the acetic acid is more favorable, forming a CoIII-H complex and further reducing to CoII-H. The second proton transfer from water to the CoII-H moiety requires less free energy than acetic acid and is the rate-limiting step. The nature of the reduction process is also examined through the charge analysis, which reveals that the ligand becomes softer due to the C═O groups.
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Affiliation(s)
- Koteswara Rao Gorantla
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
| | - Bhabani S Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Sangareddy 502285, Telangana, India
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16
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Bhunia S, Rana A, Hematian S, Karlin KD, Dey A. Proton Relay in Iron Porphyrins for Hydrogen Evolution Reaction. Inorg Chem 2021; 60:13876-13887. [PMID: 34097396 DOI: 10.1021/acs.inorgchem.1c01079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The efficiency of the hydrogen evolution reaction (HER) can be facilitated by the presence of proton-transfer groups in the vicinity of the catalyst. A systematic investigation of the nature of the proton-transfer groups present and their interplay with bulk proton sources is warranted. The HERs electrocatalyzed by a series of iron porphyrins that vary in the nature and number of pendant amine groups are investigated using proton sources whose pKa values vary from ∼9 to 15 in acetonitrile. Electrochemical data indicate that a simple iron porphyrin (FeTPP) can catalyze the HER at this FeI state where the rate-determining step is the intermolecular protonation of a FeIII-H- species produced upon protonation of the iron(I) porphyrin and does not need to be reduced to its formal Fe0 state. A linear free-energy correlation of the observed rate with pKa of the acid source used suggests that the rate of the HER becomes almost independent of pKa of the external acid used in the presence of the protonated distal residues. Protonation to the FeIII-H- species during the HER changes from intermolecular in FeTPP to intramolecular in FeTPP derivatives with pendant basic groups. However, the inclusion of too many pendant groups leads to a decrease in HER activity because the higher proton binding affinity of these residues slows proton transfer for the HER. These results enrich the existing understanding of how second-sphere proton-transfer residues alter both the kinetics and thermodynamics of transition-metal-catalyzed HER.
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Affiliation(s)
- Sarmistha Bhunia
- School of Chemical Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Atanu Rana
- School of Chemical Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Shabnam Hematian
- Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, North Carolina 27402, United States
| | - Kenneth D Karlin
- Department of Chemistry, John Hopkins University, Baltimore, Maryland 21218, United States
| | - Abhishek Dey
- School of Chemical Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
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17
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Tok GC, Reiter S, Freiberg ATS, Reinschlüssel L, Gasteiger HA, de Vivie-Riedle R, Hess CR. H 2 Evolution from Electrocatalysts with Redox-Active Ligands: Mechanistic Insights from Theory and Experiment vis-à-vis Co-Mabiq. Inorg Chem 2021; 60:13888-13902. [PMID: 34297556 DOI: 10.1021/acs.inorgchem.1c01157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electrocatalytic hydrogen production via transition metal complexes offers a promising approach for chemical energy storage. Optimal platforms to effectively control the proton and electron transfer steps en route to H2 evolution still need to be established, and redox-active ligands could play an important role in this context. In this study, we explore the role of the redox-active Mabiq (Mabiq = 2-4:6-8-bis(3,3,4,4-tetramethlyldihydropyrrolo)-10-15-(2,2-biquinazolino)-[15]-1,3,5,8,10,14-hexaene1,3,7,9,11,14-N6) ligand in the hydrogen evolution reaction (HER). Using spectro-electrochemical studies in conjunction with quantum chemical calculations, we identified two precatalytic intermediates formed upon the addition of two electrons and one proton to [CoII(Mabiq)(THF)](PF6) (CoMbq). We further examined the acid strength effect on the generation of the intermediates. The generation of the first intermediate, CoMbq-H1, involves proton addition to the bridging imine-nitrogen atom of the ligand and requires strong proton activity. The second intermediate, CoMbq-H2, acquires a proton at the diketiminate carbon for which a weaker proton activity is sufficient. We propose two decoupled H2 evolution pathways based on these two intermediates, which operate at different overpotentials. Our results show how the various protonation sites of the redox-active Mabiq ligand affect the energies and activities of HER intermediates.
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Affiliation(s)
- G Ceren Tok
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Sebastian Reiter
- Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Anna T S Freiberg
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Leonhard Reinschlüssel
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Hubert A Gasteiger
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
| | - Regina de Vivie-Riedle
- Department of Chemistry, Ludwig-Maximilians-Universität München, Butenandtstr. 5-13, 81377 München, Germany
| | - Corinna R Hess
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, 85748 Garching, Germany
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18
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Pistner AJ, Martin MI, Yap GP, Rosenthal J. Synthesis, structure, electronic characterization, and halogenation of gold(III) phlorin complexes. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s1088424621500565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The metalation chemistry of the phlorin, which is a non-aromatic tetrapyrrole macrocycle containing a single sp3-hybridized meso-carbon has remained underdeveloped, as compared to that of more traditional tetrapyrroles such as porphyrins, corroles and phthalocyanines. There have been few prior efforts to prepare metallophlorins, and those that have been reported have relied on either reduction or nucleophilic attack of parent metalloporphyrins, rather than direct metalation of freebase phlorin constructs. In this work, an alternate synthetic approach for preparation of gold(III) phlorin complexes that involves the first direct metalation of two different freebase phlorin derivatives (3H(Phl[Formula: see text] and 3H(Phl[Formula: see text] with AuBr3 to produce the stable and fully isolable gold(III) phlorin complexes Au(Phl[Formula: see text] and Au(Phl[Formula: see text] is reported. The first structural characterization of a metallophlorin bearing geminal dimethyl substituents at the sp3-hybridized meso-carbon via X-ray crystallography is also reported. In addition to the preparation of Au(Phl[Formula: see text] and Au(Phl[Formula: see text], the UV-vis absorption and redox properties of these two gold(III) phlorins in comparison to those of their freebase homologues is also detailed. Notably, the metallophlorins are characterized by panchromatic absorbance profiles and intense and broad bands that span the long-visible and into the near-IR regions, as well as two fully reversible oxidation and reduction waves as probed by cyclic voltammetry. Finally, the chlorination of Au(Phl[Formula: see text] using PhI(Cl[Formula: see text] was probed and it was found that this regioslective reaction generates monochlorinated (Au(Phl[Formula: see text]Cl)) and dichlorinated (Au(Phl[Formula: see text]Cl[Formula: see text] products, which were both structurally characterized by X-ray crystallography.
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Affiliation(s)
- Allen J. Pistner
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Maxwell I. Martin
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Glenn P.A. Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
| | - Joel Rosenthal
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, 19716, USA
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19
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Lu X, Ahsaine HA, Dereli B, Garcia-Esparza AT, Reinhard M, Shinagawa T, Li D, Adil K, Tchalala MR, Kroll T, Eddaoudi M, Sokaras D, Cavallo L, Takanabe K. Operando Elucidation on the Working State of Immobilized Fluorinated Iron Porphyrin for Selective Aqueous Electroreduction of CO 2 to CO. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01157] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiaofei Lu
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hassan Ait Ahsaine
- KAUST Catalysis Center (KCC) and Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Busra Dereli
- KAUST Catalysis Center (KCC) and Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Angel T. Garcia-Esparza
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Marco Reinhard
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Tatsuya Shinagawa
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Duanxing Li
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Karim Adil
- Functional Materials Design, Discovery and Development Research Group (FMD3), Advanced Membranes and Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Mohamed Rachid Tchalala
- Functional Materials Design, Discovery and Development Research Group (FMD3), Advanced Membranes and Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Thomas Kroll
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Mohamed Eddaoudi
- Functional Materials Design, Discovery and Development Research Group (FMD3), Advanced Membranes and Porous Materials Center (AMPMC), Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Dimosthenis Sokaras
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, California 94025, United States
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC) and Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), 4700 KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Kazuhiro Takanabe
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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20
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Zhang Z, Koide T, Zhou Z, Shimakoshi H, Hisaeda Y. Redox behavior of iridium octaethylporphycene and electrocatalytic hydrogen evolution. J PORPHYR PHTHALOCYA 2021. [DOI: 10.1142/s108842462150053x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The electrochemical properties of [Formula: see text]-octaethylporphycene iridium complex (Ir-OEPo) were determined. Based on the electro-spectro measurement results, the reduction of Ir-OEPo did not occur at the central metal but at the ligand, while the reduction of [Formula: see text]-octaethylporphyrin iridium complex (Ir-OEPor) occurred at the central iridium. A catalytic current was observed during the cyclic voltammetry (CV) measurements with trifluoroacetic acid (TFA) under a reductive condition, indicating the catalytic reactivity of Ir-OEPo for the hydrogen evolution reaction (HER). By constant potential electrolysis, hydrogen gas was detected by gas chromatography (GC) and the catalytic reactivity of Ir-OEPo was confirmed. The HER mechanism via ligand reduction of macrocyclic aromatic complexes could be one of the concepts for the development of new catalysts.
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Affiliation(s)
- Zhi Zhang
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Taro Koide
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Zihan Zhou
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hisashi Shimakoshi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yoshio Hisaeda
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Molecular Systems (CMS), Kyushu University, Moto-oka 744, Nishi-ku, Fukuoka 819-0395, Japan
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21
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Beyene BB, Yibeltal AW, Hung C. Highly efficient electrocatalytic hydrogen evolution from neutral aqueous solution by water soluble copper (II) porphyrin. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2020.119929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Das A, Hessin C, Ren Y, Desage-El Murr M. Biological concepts for catalysis and reactivity: empowering bioinspiration. Chem Soc Rev 2020; 49:8840-8867. [PMID: 33107878 DOI: 10.1039/d0cs00914h] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Biological systems provide attractive reactivity blueprints for the design of challenging chemical transformations. Emulating the operating mode of natural systems may however not be so easy and direct translation of structural observations does not always afford the anticipated efficiency. Metalloenzymes rely on earth-abundant metals to perform an incredibly wide range of chemical transformations. To do so, enzymes in general have evolved tools and tricks to enable control of such reactivity. The underlying concepts related to these tools are usually well-known to enzymologists and bio(inorganic) chemists but may be a little less familiar to organometallic chemists. So far, the field of bioinspired catalysis has greatly focused on the coordination sphere and electronic effects for the design of functional enzyme models but might benefit from a paradigm shift related to recent findings in biological systems. The goal of this review is to bring these fields closer together as this could likely result in the development of a new generation of highly efficient bioinspired systems. This contribution covers the fields of redox-active ligands, entatic state reactivity, energy conservation through electron bifurcation, and quantum tunneling for C-H activation.
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Affiliation(s)
- Agnideep Das
- Université de Strasbourg, Institut de Chimie, UMR CNRS 7177, 67000 Strasbourg, France.
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23
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Lei H, Wang Y, Zhang Q, Cao R. First-row transition metal porphyrins for electrocatalytic hydrogen evolution — a SPP/JPP Young Investigator Award paper. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424620500157] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A series of first-row transition metal complexes of tetrakis(pentafluorophenyl)porphyrin (1), denoted as 1-M (M [Formula: see text] Mn, Fe, Co, Ni, Cu, and Zn), were synthesized and examined as electrocatalysts for the hydrogen evolution reaction (HER). All these transition metal porphyrins were shown to be active for HER in acetonitrile using trifluoroacetic acid (TFA) as the proton source. The molecular nature and the stability of these metal porphyrins when functioning as HER catalysts were confirmed, and all catalysts gave Faradaic efficiency of >97% for H2 generation during bulk electrolysis. Importantly, by using 1-Cu, a remarkably high turnover frequency (TOF) of 48500 s[Formula: see text] 1-Cu the most efficient among this series of metal porphyrin catalysts. This TOF value also represents one of the highest values reported in the literature. In addition, electrochemical analysis demonstrated that catalytic HER mechanisms with these 1-M complexes are different. These results show that with the same porphyrin ligand, the change of metal ions will have significant impact on both catalytic efficiency and mechanism. This work for the first time provides direct comparison of electrocatalytic HER features of transition metal complexes of tetrakis(pentafluorophenyl)porphyrin under identical conditions, and will be valuable for future design and development of more efficient HER electrocatalysts of this series.
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Affiliation(s)
- Haitao Lei
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Yabo Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Qingxin Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
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24
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Xie L, Tian J, Ouyang Y, Guo X, Zhang W, Apfel U, Zhang W, Cao R. Water‐Soluble Polymers with Appending Porphyrins as Bioinspired Catalysts for the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202003836] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Lisi Xie
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
| | - Jia Tian
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Yingjie Ouyang
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Xinai Guo
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Ulf‐Peter Apfel
- Ruhr-Universität Bochum Fakultät für Chemie und Biochemie Anorganische Chemie I Universitätsstrasse 150 44801 Bochum Germany
- Fraunhofer UMSICHT Osterfelder Strasse 3 46047 Oberhausen Germany
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
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25
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Xie L, Tian J, Ouyang Y, Guo X, Zhang W, Apfel U, Zhang W, Cao R. Water‐Soluble Polymers with Appending Porphyrins as Bioinspired Catalysts for the Hydrogen Evolution Reaction. Angew Chem Int Ed Engl 2020; 59:15844-15848. [DOI: 10.1002/anie.202003836] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 05/10/2020] [Indexed: 01/09/2023]
Affiliation(s)
- Lisi Xie
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
| | - Jia Tian
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Yingjie Ouyang
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Xinai Guo
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
| | - Weian Zhang
- Shanghai Key Laboratory of Functional Materials Chemistry School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China
| | - Ulf‐Peter Apfel
- Ruhr-Universität Bochum Fakultät für Chemie und Biochemie Anorganische Chemie I Universitätsstrasse 150 44801 Bochum Germany
- Fraunhofer UMSICHT Osterfelder Strasse 3 46047 Oberhausen Germany
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
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26
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Osterloh WR, Desbois N, Quesneau V, Brandès S, Fleurat-Lessard P, Fang Y, Blondeau-Patissier V, Paolesse R, Gros CP, Kadish KM. Old Dog, New Tricks: Innocent, Five-coordinate Cyanocobalt Corroles. Inorg Chem 2020; 59:8562-8579. [PMID: 32452674 DOI: 10.1021/acs.inorgchem.0c01037] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Three mono-CN ligated anionic cobalt A3-triarylcorroles were synthesized and investigated as to their spectroscopic and electrochemical properties in CH2Cl2, pyridine (Py), and dimethyl sulfoxide (DMSO). The newly synthesized corroles provide the first examples of air-stable cobalt corroles with an anionic axial ligand and are represented as [(Ar)3CorCoIII(CN)]-TBA+, where Cor is the trivalent corrole macrocycle, Ar is p-(CN)Ph, p-(CF3)Ph, or p-(OMe)Ph, and TBA+ is the tetra-n-butylammonium (TBA) cation. Multiple redox reactions are observed for each mono-CN derivative with a key feature being a more facile first oxidation and a more difficult first reduction in all three solvents as compared to all previously examined corroles with similar meso- and β-pyrrole substituents. Formation constants (log K) for conversion of the five-coordinate mono-CN complex to its six-coordinate bis-CN form ranged from 102.8 for Ar = p-(OMe)Ph to 104.7 for Ar = p-(CN)Ph in DMSO as determined by spectroscopic methodologies. The in situ generated bis-CN complexes, represented as [(Ar)3CorCoIII(CN)2]2-(TBA+)2, and the mixed ligand complexes, represented as [(Ar)3CorCoIII(CN)(Py)]-TBA+, were also investigated as to their electrochemical and spectroscopic properties. UV-visible spectra and electrode reactions of the synthesized mono-CN derivatives are compared with the neutral mono-DMSO cobalt corrole complexes and the in situ generated bis-CN and bis-Py complexes, and the noninnocent (or innocent) nature of each cobalt corrole system is addressed. The data demonstrate the ability of the CN- axial ligand(s) to stabilize the high-valent forms of the metallocorrole, leading to systems with innocent macrocyclic ligands. Although a number of six-coordinate cobalt(III) corroles with N-donor ligands were characterized in the solid state, a dissociation of one axial ligand readily occurs in nonaqueous solvents, and this behavior contrasts with the high stability of the currently studied bis-CN adducts in CH2Cl2, pyridine, or DMSO. Linear free energy relationships were elucidated between the meso-phenyl Hammett substituent constants (Σσ) and the measured binding constants, the redox potentials, and the energy of the band positions in the mono-CN and bis-CN complexes in their neutral or singly oxidized forms, revealing highly predictable trends in the physicochemical properties of the anionic corroles.
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Affiliation(s)
- W Ryan Osterloh
- Department of Chemistry, University of Houston, Houston 77204-5003, Texas, United States
| | - Nicolas Desbois
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Valentin Quesneau
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Stéphane Brandès
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Paul Fleurat-Lessard
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Yuanyuan Fang
- Department of Chemistry, University of Houston, Houston 77204-5003, Texas, United States
| | - Virginie Blondeau-Patissier
- Department Time-Frequency, Université Bourgogne Franche-Comté, Institut FEMTO-ST (UMR CNRS 6174), 26 Chemin de l'épitaphe, Besançon Cedex 25030, France
| | - Roberto Paolesse
- Department of Chemical Science and Technology, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, Rome 00133, Italy
| | - Claude P Gros
- Université Bourgogne Franche-Comté, ICMUB (UMR CNRS 6302), 9 Avenue Alain Savary, BP 47870, Dijon, Cedex 21078, France
| | - Karl M Kadish
- Department of Chemistry, University of Houston, Houston 77204-5003, Texas, United States
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27
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Alvarez-Hernandez JL, Sopchak AE, Bren KL. Buffer pKa Impacts the Mechanism of Hydrogen Evolution Catalyzed by a Cobalt Porphyrin-Peptide. Inorg Chem 2020; 59:8061-8069. [DOI: 10.1021/acs.inorgchem.0c00362] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Andrew E. Sopchak
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
| | - Kara L. Bren
- Department of Chemistry, University of Rochester, Rochester, New York 14627-0216, United States
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28
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Beyene BB, Hung CH. Recent progress on metalloporphyrin-based hydrogen evolution catalysis. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213234] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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29
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Le JM, Alachouzos G, Chino M, Frontier AJ, Lombardi A, Bren KL. Tuning Mechanism through Buffer Dependence of Hydrogen Evolution Catalyzed by a Cobalt Mini-enzyme. Biochemistry 2020; 59:1289-1297. [DOI: 10.1021/acs.biochem.0c00060] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jennifer M. Le
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Georgios Alachouzos
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Marco Chino
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 45, 80126 Naples, Italy
| | - Alison J. Frontier
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Angela Lombardi
- Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 45, 80126 Naples, Italy
| | - Kara L. Bren
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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30
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Drosou M, Kamatsos F, Mitsopoulou CA. Recent advances in the mechanisms of the hydrogen evolution reaction by non-innocent sulfur-coordinating metal complexes. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01113g] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review comments on the homogeneous HER mechanisms for catalysts carrying S-non-innocent ligands in the light of experimental and computational data.
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Affiliation(s)
- Maria Drosou
- Inorganic Chemistry Laboratory
- Department of Chemistry
- National and Kapodistrian University of Athens
- Panepistimiopolis
- Greece
| | - Fotios Kamatsos
- Inorganic Chemistry Laboratory
- Department of Chemistry
- National and Kapodistrian University of Athens
- Panepistimiopolis
- Greece
| | - Christiana A. Mitsopoulou
- Inorganic Chemistry Laboratory
- Department of Chemistry
- National and Kapodistrian University of Athens
- Panepistimiopolis
- Greece
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31
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Shao Y, de Groot HJ, Buda F. Proton Acceptor near the Active Site Lowers Dramatically the O-O Bond Formation Energy Barrier in Photocatalytic Water Splitting. J Phys Chem Lett 2019; 10:7690-7697. [PMID: 31763842 PMCID: PMC6926955 DOI: 10.1021/acs.jpclett.9b02914] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 11/25/2019] [Indexed: 05/21/2023]
Abstract
The O-O bond formation process via water nucleophilic attack represents a thermodynamic and kinetic bottleneck in photocatalytic water oxidation because of the considerably high activation free energy barrier. It is therefore of fundamental significance and yet challenging to find strategies to facilitate this reaction. The microscopic details of the photocatalytic water oxidation step involving the O-O bond formation in a catalyst-dye supramolecular complex are here elucidated by density functional theory-based Car-Parrinello molecular dynamics simulations in the presence of an extra proton acceptor. Introducing a proton acceptor group (OH-) in the hydration shell near the catalytic active site accelerates the rate-limiting O-O bond formation by inducing a cooperative event proceeding via a concerted proton-coupled electron-transfer mechanism and thus significantly lowering the activation free energy barrier. The in-depth insight provides a strategy for facilitating the photocatalytic water oxidation and for improving the efficiency of dye-sensitized photoelectrochemical cells.
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Affiliation(s)
- Yang Shao
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300
RA Leiden, The Netherlands
| | - Huub J.M. de Groot
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300
RA Leiden, The Netherlands
| | - Francesco Buda
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300
RA Leiden, The Netherlands
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32
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Loewen ND, Berben LA. Secondary Coordination Sphere Design to Modify Transport of Protons and CO2. Inorg Chem 2019; 58:16849-16857. [DOI: 10.1021/acs.inorgchem.9b03102] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Natalia D. Loewen
- Department of Chemistry, University of California, Davis, California 95616, United States
| | - Louise A. Berben
- Department of Chemistry, University of California, Davis, California 95616, United States
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33
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Mazzeo A, Pellegrino J, Doctorovich F. Water-Soluble Nitroxyl Porphyrin Complexes Fe IITPPSHNO and Fe IITPPSNO - Obtained from Isolated Fe IITPPSNO •. J Am Chem Soc 2019; 141:18521-18530. [PMID: 31657216 DOI: 10.1021/jacs.9b09161] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The first biomimetic water-soluble FeII-porphyrin nitroxyl complexes were obtained and characterized by UV-vis in protonated and deprotonated forms by reduction of previously isolated and characterized FeIITPPSNO•. The pKa involved in the FeII-HNO ⇄ FeII-NO- + H+ equilibrium was estimated to be around 9.7. The FeIITPPSHNO complex spontaneously reoxidizes to the nitrosyl form following a first-order kinetic decay with a measured kinetic constant of k = 0.017 s-1. Experiments show that the HNO adduct undergoes unimolecular homolytic cleavage of the H-NO bond. DFT calculations suggest a phlorin radical intermediate for this reaction. The deprotonated NO- complex resulted to be more stable, with a half-life of about 10 min.
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Affiliation(s)
- Agostina Mazzeo
- Departamento de Química Inorgánica, Analítica, y Química Física, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , INQUIMAE-CONICET, Ciudad Universitaria, Pab. 2, C1428EHA , Buenos Aires , Argentina
| | - Juan Pellegrino
- Departamento de Química Inorgánica, Analítica, y Química Física, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , INQUIMAE-CONICET, Ciudad Universitaria, Pab. 2, C1428EHA , Buenos Aires , Argentina
| | - Fabio Doctorovich
- Departamento de Química Inorgánica, Analítica, y Química Física, Facultad de Ciencias Exactas y Naturales , Universidad de Buenos Aires , INQUIMAE-CONICET, Ciudad Universitaria, Pab. 2, C1428EHA , Buenos Aires , Argentina
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34
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Tok GC, Freiberg ATS, Gasteiger HA, Hess CR. Electrocatalytic H
2
Evolution by the Co‐Mabiq Complex Requires Tempering of the Redox‐Active Ligand. ChemCatChem 2019. [DOI: 10.1002/cctc.201900953] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- G. Ceren Tok
- Chair of Technical Electrochemistry Chemistry Department and Catalysis Research CenterTechnical University of Munich Lichtenbergstr. 4 Garching bei Munich Germany
- Chemistry Department and Catalysis Research CenterTechnical University of Munich Lichtenbergstr. 4 Garching bei Munich Germany
| | - Anna T. S. Freiberg
- Chair of Technical Electrochemistry Chemistry Department and Catalysis Research CenterTechnical University of Munich Lichtenbergstr. 4 Garching bei Munich Germany
| | - Hubert A. Gasteiger
- Chair of Technical Electrochemistry Chemistry Department and Catalysis Research CenterTechnical University of Munich Lichtenbergstr. 4 Garching bei Munich Germany
| | - Corinna R. Hess
- Chemistry Department and Catalysis Research CenterTechnical University of Munich Lichtenbergstr. 4 Garching bei Munich Germany
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35
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Maher AG, Liu M, Nocera DG. Ligand Noninnocence in Nickel Porphyrins: Nickel Isobacteriochlorin Formation under Hydrogen Evolution Conditions. Inorg Chem 2019; 58:7958-7968. [DOI: 10.1021/acs.inorgchem.9b00717] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Andrew G. Maher
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Mengran Liu
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
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36
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Sconyers DJ, Blakemore JD. Distinguishing deposition, corrosion, and stripping of transient heterogeneous materials during molecular electrocatalysis. Dalton Trans 2019; 48:6372-6382. [PMID: 30942228 DOI: 10.1039/c9dt00584f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Understanding the behavior of molecular hydrogen-evolving electrocatalysts is often challenging, because secondary heterogeneous materials can form during reductive electrode polarization and contribute to catalysis. Here, we use an electrochemical quartz crystal microbalance to interrogate secondary heterogeneous materials formed in situ during hydrogen generation with the proton- and difluoroboryl-bridged dimethylglyoxime cobalt catalysts in acetonitrile electrolyte. Detrimental protonation reactions of the molecular precatalysts lead to formation of the transient heterogeneous materials, and the structure of the molecular cobaloxime precursors affects the potential dependence and kinetics of deposition and loss of heterogeneous material from the electrode surface. The strength of the acid in the electrolyte (needed as the proton source for H2 generation) also contributes to the stability and corrosion rate of the heterogeneous materials, as revealed in multistep polarization studies. Overall, these results support involvement of an interplay of electrodeposition, proton-driven (chemical) corrosion, and anodic (electrochemical) stripping in influencing the catalytic activity and the behavior of transient heterogeneous materials that may be generated during catalysis.
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Affiliation(s)
- David J Sconyers
- Department of Chemistry, University of Kansas, 1567 Irving Hill Road, Lawrence, Kansas 66045, USA.
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37
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Koshiba K, Yamauchi K, Sakai K. Ligand‐Based PCET Reduction in a Heteroleptic Ni(bpy)(dithiolene) Electrocatalyst Giving Rise to Higher Metal Basicity Required for Hydrogen Evolution. ChemElectroChem 2019. [DOI: 10.1002/celc.201900400] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Keita Koshiba
- Department of Chemistry Faculty of ScienceKyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Kosei Yamauchi
- Department of Chemistry Faculty of ScienceKyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Ken Sakai
- Department of Chemistry Faculty of ScienceKyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
- Center for Molecular Systems (CMS)Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
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38
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Zhong YQ, Hossain MS, Chen Y, Fan QH, Zhan SZ, Liu HY. A comparative study of electrocatalytic hydrogen evolution by iron complexes of corrole and porphyrin from acetic acid and water. TRANSIT METAL CHEM 2019. [DOI: 10.1007/s11243-019-00307-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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39
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Kasemthaveechok S, Fabre B, Loget G, Gramage-Doria R. Remote ion-pair interactions in Fe-porphyrin-based molecular catalysts for the hydrogen evolution reaction. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02164c] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The influence of ion-pair interactions between carboxy-containing iron porphyrins and the proton source in the hydrogen evolution reaction is described.
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Affiliation(s)
| | - Bruno Fabre
- Univ Rennes
- CNRS
- ISCR-UMR 6226
- F-35000 Rennes
- France
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40
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Thammavongsy Z, Mercer IP, Yang JY. Promoting proton coupled electron transfer in redox catalysts through molecular design. Chem Commun (Camb) 2019; 55:10342-10358. [DOI: 10.1039/c9cc05139b] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mini-review on using the secondary coordination sphere to facilitate multi-electron, multi-proton catalysis.
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Affiliation(s)
| | - Ian P. Mercer
- Department of Chemistry
- University of California
- Irvine
- USA
| | - Jenny Y. Yang
- Department of Chemistry
- University of California
- Irvine
- USA
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41
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Xu G, Lei H, Zhou G, Zhang C, Xie L, Zhang W, Cao R. Boosting hydrogen evolution by using covalent frameworks of fluorinated cobalt porphyrins supported on carbon nanotubes. Chem Commun (Camb) 2019; 55:12647-12650. [DOI: 10.1039/c9cc06916j] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A covalent framework using fluorinated cobalt porphyrins is synthesized and shows significantly improved efficiency for the hydrogen evolution reaction in aqueous solution.
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Affiliation(s)
- Gelun Xu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Haitao Lei
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Guojun Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Chaochao Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Lisi Xie
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710119
- China
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42
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Koshiba K, Yamauchi K, Sakai K. Consecutive ligand-based PCET processes affording a doubly reduced nickel pyrazinedithiolate which transforms into a metal hydride required to evolve H2. Dalton Trans 2019; 48:635-640. [DOI: 10.1039/c8dt04497j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Consecutive Ligand-based PCET Processes Affording a Doubly Reduced Nickel Pyrazinedithiolate which Transforms into a Metal Hydride Required to Evolve H2.
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Affiliation(s)
- Keita Koshiba
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Kosei Yamauchi
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Ken Sakai
- Department of Chemistry
- Faculty of Science
- Kyushu University
- Fukuoka 819-0395
- Japan
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43
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Ilic S, Alherz A, Musgrave CB, Glusac KD. Importance of proton-coupled electron transfer in cathodic regeneration of organic hydrides. Chem Commun (Camb) 2019; 55:5583-5586. [DOI: 10.1039/c9cc00928k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
This communication reports a combined experimental and computational study of mechanisms by which biomimetic NADH analogs can be electrochemically regenerated.
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Affiliation(s)
- Stefan Ilic
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
- Chemical Sciences and Engineering Division
| | - Abdulaziz Alherz
- Department of Chemical and Biological Engineering
- University of Colorado
- Boulder
- USA
| | - Charles B. Musgrave
- Department of Chemical and Biological Engineering
- University of Colorado
- Boulder
- USA
- Department of Chemistry
| | - Ksenija D. Glusac
- Department of Chemistry
- University of Illinois at Chicago
- Chicago
- USA
- Chemical Sciences and Engineering Division
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44
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Luo GG, Zhang HL, Tao YW, Wu QY, Tian D, Zhang Q. Recent progress in ligand-centered homogeneous electrocatalysts for hydrogen evolution reaction. Inorg Chem Front 2019. [DOI: 10.1039/c8qi01220b] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Recent advances in metal and metal-free ligand-centred electrocatalytic H2 evolution have been reviewed.
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Affiliation(s)
- Geng-Geng Luo
- Key Laboratory of Environmental Friendly Function Materials Ministry of Education
- College of Materials Science and Engineering
- Huaqiao University
- Xiamen 361021
- P.R. China
| | - Hai-Lin Zhang
- Key Laboratory of Environmental Friendly Function Materials Ministry of Education
- College of Materials Science and Engineering
- Huaqiao University
- Xiamen 361021
- P.R. China
| | - Yun-Wen Tao
- Department of Chemistry
- New York University
- New York
- USA
| | - Qiao-Yu Wu
- Key Laboratory of Environmental Friendly Function Materials Ministry of Education
- College of Materials Science and Engineering
- Huaqiao University
- Xiamen 361021
- P.R. China
| | - Dan Tian
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials
| | - Qichun Zhang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
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45
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Directing the reactivity of metal hydrides for selective CO 2 reduction. Proc Natl Acad Sci U S A 2018; 115:12686-12691. [PMID: 30463952 DOI: 10.1073/pnas.1811396115] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A critical challenge in electrocatalytic CO2 reduction to renewable fuels is product selectivity. Desirable products of CO2 reduction require proton equivalents, but key catalytic intermediates can also be competent for direct proton reduction to H2 Understanding how to manage divergent reaction pathways at these shared intermediates is essential to achieving high selectivity. Both proton reduction to hydrogen and CO2 reduction to formate generally proceed through a metal hydride intermediate. We apply thermodynamic relationships that describe the reactivity of metal hydrides with H+ and CO2 to generate a thermodynamic product diagram, which outlines the free energy of product formation as a function of proton activity and hydricity (∆GH-), or hydride donor strength. The diagram outlines a region of metal hydricity and proton activity in which CO2 reduction is favorable and H+ reduction is suppressed. We apply our diagram to inform our selection of [Pt(dmpe)2](PF6)2 as a potential catalyst, because the corresponding hydride [HPt(dmpe)2]+ has the correct hydricity to access the region where selective CO2 reduction is possible. We validate our choice experimentally; [Pt(dmpe)2](PF6)2 is a highly selective electrocatalyst for CO2 reduction to formate (>90% Faradaic efficiency) at an overpotential of less than 100 mV in acetonitrile with no evidence of catalyst degradation after electrolysis. Our report of a selective catalyst for CO2 reduction illustrates how our thermodynamic diagrams can guide selective and efficient catalyst discovery.
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46
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Yamazaki SI. Metalloporphyrins and related metallomacrocycles as electrocatalysts for use in polymer electrolyte fuel cells and water electrolyzers. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.09.016] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Hammes-Schiffer S. Controlling Electrons and Protons through Theory: Molecular Electrocatalysts to Nanoparticles. Acc Chem Res 2018; 51:1975-1983. [PMID: 30110147 DOI: 10.1021/acs.accounts.8b00240] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The development of renewable energy sources that are environmentally friendly and economical is of critical importance. The effective utilization of such energy sources relies on catalysts to facilitate the interconversion between electrical and chemical energy through multielectron, multiproton reactions. The design of effective catalysts for these types of energy conversion processes requires the ability to control the localization and movement of electrons and protons, as well as the coupling between them. Theoretical calculations, in conjunction with experimental validation and feedback, are playing a key role in these catalyst design efforts. A general theory has been developed for describing proton-coupled electron transfer (PCET) reactions, which encompass all reactions involving the coupled transfer of electrons and protons, including sequential and concerted mechanisms for multielectron, multiproton processes. In addition, computational methods have been devised to compute the input quantities for the PCET rate constant expressions and to generate free energy pathways for molecular electrocatalysts. These methods have been extended to heterogeneous PCET reactions to enable the modeling of PCET processes at electrode and nanoparticle surfaces. Three distinct theoretical studies of PCET reactions relevant to catalyst design for energy conversion processes are discussed. In the first application, theoretical calculations of hydrogen production catalyzed by hangman metalloporphyrins predicted that the porphyrin ligand is reduced, leading to dearomatization and proton transfer from the carboxylic acid hanging group to the meso carbon of the porphyrin rather than the metal center, producing a phlorin intermediate. Subsequent experiments isolated and characterized the phlorin intermediate, validating this theoretical prediction. These molecular electrocatalysts exemplify the potential use of noninnocent ligands to localize electrons and protons on different parts of the catalyst and to direct their motions accordingly. In the second application, theoretical calculations on substituted benzimidazole phenol molecules predicted that certain substituents would lead to multiple intramolecular proton transfer reactions upon oxidation. Subsequent experiments verified these multiproton reactions, as well as the predicted shifts in the redox potentials and kinetic isotope effects. These bioinspired molecular systems demonstrate the potential use of multiproton relays to enable the transport of protons over longer distances along specified pathways, as well as the tuning of redox potentials through this movement of positive charge. In the third application, theoretical studies of heterogeneous PCET in photoreduced ZnO nanoparticles illustrated the significance of proton diffusion through the bulk of the nanoparticle as well as interfacial PCET to an organic radical in solution at its surface. These theoretical calculations were consistent with prior experimental studies of this system, although theoretical methods for heterogeneous PCET have not yet attained the level of predictive capability highlighted for the molecular electrocatalysts. These examples suggest that theory will play a significant role in the design of both molecular and heterogeneous catalysts to control the movement and coupling of electrons and protons. The resulting catalysts will be essential for the development of renewable energy sources to address current energy challenges.
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Affiliation(s)
- Sharon Hammes-Schiffer
- Department of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520, United States
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48
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Ab initio study of ligand dissociation/exchange and the hydrogen production process of the Co(dmgH)2(py)Cl cobaloxime in the acetonitrile-water solvent. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.03.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Margarit CG, Schnedermann C, Asimow NG, Nocera DG. Carbon Dioxide Reduction by Iron Hangman Porphyrins. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00334] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Charles G. Margarit
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Christoph Schnedermann
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Naomi G. Asimow
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Daniel G. Nocera
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
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50
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Wu Y, Rodríguez-López N, Villagrán D. Hydrogen gas generation using a metal-free fluorinated porphyrin. Chem Sci 2018; 9:4689-4695. [PMID: 29899963 PMCID: PMC5969493 DOI: 10.1039/c8sc00093j] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 04/20/2018] [Indexed: 12/20/2022] Open
Abstract
Free-base meso-tetra(pentafluorophenyl)porphyrin, 1, is electrocatalytically active for hydrogen gas generation in the presence of p-toluenesulfonic acid. The electrochemical potential of hydrogen evolution (-1.31 V vs. Fc/Fc+ in THF) is comparable to those of metal containing electrocatalysts such as metallated porphyrins or other metallated macrocycles. Combining experimental observations and DFT computations, we propose the most favorable hydrogen generation mechanism to be a (1) reduction, (2) protonation, (3) reduction, (4) protonation (E-P-E-P) pathway.
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Affiliation(s)
- Yanyu Wu
- Department of Chemistry and Biochemistry , The University of Texas at El Paso , El Paso , TX 79968 , USA .
| | - Nancy Rodríguez-López
- Department of Chemistry and Biochemistry , The University of Texas at El Paso , El Paso , TX 79968 , USA .
| | - Dino Villagrán
- Department of Chemistry and Biochemistry , The University of Texas at El Paso , El Paso , TX 79968 , USA .
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