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Reuillard B, Costentin C, Artero V. Deciphering Reversible Homogeneous Catalysis of the Electrochemical H 2 Evolution and Oxidation: Role of Proton Relays and Local Concentration Effects. Angew Chem Int Ed Engl 2023; 62:e202302779. [PMID: 37073946 DOI: 10.1002/anie.202302779] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 04/20/2023]
Abstract
Nickel bisdiphosphine complexes bearing pendant amines form a unique series of catalysts (so-called DuBois' catalysts) capable of bidirectional/reversible electrocatalytic oxidation and production of dihydrogen. This unique behaviour is directly linked to the presence of proton relays installed close to the metal center. We report here for the arginine derivative [Ni(P2 Cy N2 Arg )2 ]6+ on a mechanistic model and its kinetic treatment that may apply to all DuBois' catalysts and show that it allows for a good fit of experimental data measured at different pH values, catalyst concentrations and partial hydrogen pressures. The bidirectionality of catalysis results from balanced equilibria related to hydrogen uptake/evolution on one side and (metal)-hydride installation/capture on the other side, both controlled by concentration effects resulting from the presence of proton relays and connected by two square schemes corresponding to proton-coupled electron transfer processes. We show that the catalytic bias is controlled by the kinetic of the H2 uptake/evolution step. Reversibility does not require that the energy landscape be flat, with redox transitions occurring at potentials up to 250 mV away for the equilibrium potential, although such large deviations from a flat energy landscape can negatively impacts the rate of catalysis when coupled with slow interfacial electron transfer kinetics.
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Affiliation(s)
| | | | - Vincent Artero
- Univ Grenoble Alpes, CNRS, CEA, IRIG, LCBM, 38000, Grenoble, France
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2
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Wiedner ES, Appel AM, Raugei S, Shaw WJ, Bullock RM. Molecular Catalysts with Diphosphine Ligands Containing Pendant Amines. Chem Rev 2022; 122:12427-12474. [PMID: 35640056 DOI: 10.1021/acs.chemrev.1c01001] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Pendant amines play an invaluable role in chemical reactivity, especially for molecular catalysts based on earth-abundant metals. As inspired by [FeFe]-hydrogenases, which contain a pendant amine positioned for cooperative bifunctionality, synthetic catalysts have been developed to emulate this multifunctionality through incorporation of a pendant amine in the second coordination sphere. Cyclic diphosphine ligands containing two amines serve as the basis for a class of catalysts that have been extensively studied and used to demonstrate the impact of a pendant base. These 1,5-diaza-3,7-diphosphacyclooctanes, now often referred to as "P2N2" ligands, have profound effects on the reactivity of many catalysts. The resulting [Ni(PR2NR'2)2]2+ complexes are electrocatalysts for both the oxidation and production of H2. Achieving the optimal benefit of the pendant amine requires that it has suitable basicity and is properly positioned relative to the metal center. In addition to the catalytic efficacy demonstrated with [Ni(PR2NR'2)2]2+ complexes for the oxidation and production of H2, catalysts with diphosphine ligands containing pendant amines have also been demonstrated for several metals for many different reactions, both in solution and immobilized on surfaces. The impact of pendant amines in catalyst design continues to expand.
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3
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Nie W, McCrory C. Strategies for Breaking Molecular Scaling Relationships for the Electrochemical CO 2 Reduction Reaction. Dalton Trans 2022; 51:6993-7010. [DOI: 10.1039/d2dt00333c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electrocatalytic CO2 reduction reaction (CO2RR) is a promising strategy for converting CO2 to fuels and value-added chemicals using renewable energy sources. Molecular electrocatalysts show promise for the selective conversion...
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4
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Schild J, Reuillard B, Morozan A, Chenevier P, Gravel E, Doris E, Artero V. Approaching Industrially Relevant Current Densities for Hydrogen Oxidation with a Bioinspired Molecular Catalytic Material. J Am Chem Soc 2021; 143:18150-18158. [PMID: 34677065 DOI: 10.1021/jacs.1c07093] [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
Integration of efficient platinum-group-metal (PGM)-free catalysts to fuel cells and electrolyzers is a prerequisite to their large-scale deployment. Here, we describe the development of a molecular-based anode for the hydrogen oxidation reaction (HOR) through noncovalent integration of a DuBois type Ni bioinspired molecular catalyst at the surface of a carbon nanotube modified gas diffusion layer. This mild immobilization strategy enabled us to gain high control over the loading in catalytic sites. Additionally, through the adjustment of the hydration level of the active layer, a new record current density of 214 ± 20 mA cm-2 could be reached at 0.4 V vs RHE with the PGM-free anode, at 25 °C. Near industrially relevant current densities were obtained at 55 °C with 150 ± 20 and 395 ± 30 mA cm-2 at 0.1 and 0.4 V overpotentials, respectively. These results further demonstrate the relevance of such molecular approaches for the development of electrocatalytic platforms for energy conversion.
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Affiliation(s)
- Jérémy Schild
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie des Métaux, 17 rue des Martyrs F-38054 Grenoble Cedex, France.,Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Bertrand Reuillard
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie des Métaux, 17 rue des Martyrs F-38054 Grenoble Cedex, France
| | - Adina Morozan
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie des Métaux, 17 rue des Martyrs F-38054 Grenoble Cedex, France
| | - Pascale Chenevier
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, SyMMES, 17 rue des Martyrs, F-38054 Grenoble Cedex, France
| | - Edmond Gravel
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Eric Doris
- Université Paris-Saclay, CEA, INRAE, Département Médicaments et Technologies pour la Santé (DMTS), SCBM, 91191 Gif-sur-Yvette, France
| | - Vincent Artero
- Univ. Grenoble Alpes, CNRS, CEA, IRIG, Laboratoire de Chimie et Biologie des Métaux, 17 rue des Martyrs F-38054 Grenoble Cedex, France
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5
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Lashgari A, Williams CK, Glover JL, Wu Y, Chai J, Jiang JJ. Enhanced Electrocatalytic Activity of a Zinc Porphyrin for CO 2 Reduction: Cooperative Effects of Triazole Units in the Second Coordination Sphere. Chemistry 2020; 26:16774-16781. [PMID: 32701198 DOI: 10.1002/chem.202002813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Indexed: 11/05/2022]
Abstract
The control of the second coordination sphere in a coordination complex plays an important role in improving catalytic efficiency. Herein, we report a zinc porphyrin complex ZnPor8T with multiple flexible triazole units comprising the second coordination sphere, as an electrocatalyst for the highly selective electrochemical reduction of carbon dioxide (CO2 ) to carbon monoxide (CO). This electrocatalyst converted CO2 to CO with a Faradaic efficiency of 99 % and a current density of -6.2 mA cm-2 at -2.4 V vs. Fc/Fc+ in N,N-dimethylformamide using water as the proton source. Structure-function relationship studies were carried out on ZnPor8T analogs containing different numbers of triazole units and distinct triazole geometries; these unveiled that the triazole units function cooperatively to stabilize the CO2 -catalyst adduct in order to facilitate intramolecular proton transfer. Our findings demonstrate that incorporating triazole units that function in a cooperative manner is a versatile strategy to enhance the activity of electrocatalytic CO2 conversion.
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Affiliation(s)
- Amir Lashgari
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, OH, 45221, United States
| | - Caroline K Williams
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, OH, 45221, United States
| | - Jenna L Glover
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, OH, 45221, United States
| | - Yueshen Wu
- Department of Chemistry, Yale University, New Haven, Connecticut, 06520, United States
| | - Jingchao Chai
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, OH, 45221, United States
| | - Jianbing Jimmy Jiang
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, OH, 45221, United States
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6
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The roles of long-range proton-coupled electron transfer in the directionality and efficiency of [FeFe]-hydrogenases. Proc Natl Acad Sci U S A 2020; 117:20520-20529. [PMID: 32796105 DOI: 10.1073/pnas.2007090117] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
As paradigms for proton-coupled electron transfer in enzymes and benchmarks for a fully renewable H2 technology, [FeFe]-hydrogenases behave as highly reversible electrocatalysts when immobilized on an electrode, operating in both catalytic directions with minimal overpotential requirement. Using the [FeFe]-hydrogenases from Clostridium pasteurianum (CpI) and Chlamydomonas reinhardtii (CrHydA1) we have conducted site-directed mutagenesis and protein film electrochemistry to determine how efficient catalysis depends on the long-range coupling of electron and proton transfer steps. Importantly, the electron and proton transfer pathways in [FeFe]-hydrogenases are well separated from each other in space. Variants with conservative substitutions (glutamate to aspartate) in either of two positions in the proton-transfer pathway retain significant activity and reveal the consequences of slowing down proton transfer for both catalytic directions over a wide range of pH and potential values. Proton reduction in the variants is impaired mainly by limiting the turnover rate, which drops sharply as the pH is raised, showing that proton capture from bulk solvent becomes critical. In contrast, hydrogen oxidation is affected in two ways: by limiting the turnover rate and by a large overpotential requirement that increases as the pH is raised, consistent with the accumulation of a reduced and protonated intermediate. A unique observation having fundamental significance is made under conditions where the variants still retain sufficient catalytic activity in both directions: An inflection appears as the catalytic current switches direction at the 2H+/H2 thermodynamic potential, clearly signaling a departure from electrocatalytic reversibility as electron and proton transfers begin to be decoupled.
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7
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Edwards EH, Bren KL. Light-driven catalysis with engineered enzymes and biomimetic systems. Biotechnol Appl Biochem 2020; 67:463-483. [PMID: 32588914 DOI: 10.1002/bab.1976] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/21/2020] [Indexed: 01/01/2023]
Abstract
Efforts to drive catalytic reactions with light, inspired by natural processes like photosynthesis, have a long history and have seen significant recent growth. Successfully engineering systems using biomolecular and bioinspired catalysts to carry out light-driven chemical reactions capitalizes on advantages offered from the fields of biocatalysis and photocatalysis. In particular, driving reactions under mild conditions and in water, in which enzymes are operative, using sunlight as a renewable energy source yield environmentally friendly systems. Furthermore, using enzymes and bioinspired systems can take advantage of the high efficiency and specificity of biocatalysts. There are many challenges to overcome to fully capitalize on the potential of light-driven biocatalysis. In this mini-review, we discuss examples of enzymes and engineered biomolecular catalysts that are activated via electron transfer from a photosensitizer in a photocatalytic system. We place an emphasis on selected forefront chemical reactions of high interest, including CH oxidation, proton reduction, water oxidation, CO2 reduction, and N2 reduction.
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Affiliation(s)
- Emily H Edwards
- Department of Chemistry, University of Rochester, Rochester, NY, USA
| | - Kara L Bren
- Department of Chemistry, University of Rochester, Rochester, NY, USA
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8
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Reuillard B, Blanco M, Calvillo L, Coutard N, Ghedjatti A, Chenevier P, Agnoli S, Otyepka M, Granozzi G, Artero V. Noncovalent Integration of a Bioinspired Ni Catalyst to Graphene Acid for Reversible Electrocatalytic Hydrogen Oxidation. ACS APPLIED MATERIALS & INTERFACES 2020; 12:5805-5811. [PMID: 31912737 PMCID: PMC7009173 DOI: 10.1021/acsami.9b18922] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 01/07/2020] [Indexed: 06/10/2023]
Abstract
Efficient heterogeneous catalysis of hydrogen oxidation reaction (HOR) by platinum group metal (PGM)-free catalysts in proton-exchange membrane (PEM) fuel cells represents a significant challenge toward the development of a sustainable hydrogen economy. Here, we show that graphene acid (GA) can be used as an electrode scaffold for the noncovalent immobilization of a bioinspired nickel bis-diphosphine HOR catalyst. The highly functionalized structure of this material and optimization of the electrode-catalyst assembly sets new benchmark electrocatalytic performances for heterogeneous molecular HOR, with current densities above 30 mA cm-2 at 0.4 V versus reversible hydrogen electrode in acidic aqueous conditions and at room temperature. This study also shows the great potential of GA for catalyst loading improvement and porosity management within nanostructured electrodes toward achieving high current densities with a noble-metal free molecular catalyst.
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Affiliation(s)
- Bertrand Reuillard
- Univ. Grenoble
Alpes, CEA, CNRS, IRIG, Laboratoire de Chimie et Biologie des Métaux, F-38000 Grenoble, France
| | - Matías Blanco
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Laura Calvillo
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Nathan Coutard
- Univ. Grenoble
Alpes, CEA, CNRS, IRIG, Laboratoire de Chimie et Biologie des Métaux, F-38000 Grenoble, France
| | - Ahmed Ghedjatti
- Univ. Grenoble
Alpes, CEA, CNRS, IRIG, Laboratoire de Chimie et Biologie des Métaux, F-38000 Grenoble, France
| | - Pascale Chenevier
- Univ. Grenoble Alpes, CEA,
CNRS, IRIG, SYMMES, F-38000 Grenoble, France
| | - Stefano Agnoli
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Michal Otyepka
- Regional Centre
of Advanced Technologies and Materials, Department of Physical Chemistry, Palacký University Olomouc, 17. listopadu 1192/12, 771 46 Olomouc, Czech Republic
| | - Gaetano Granozzi
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Vincent Artero
- Univ. Grenoble
Alpes, CEA, CNRS, IRIG, Laboratoire de Chimie et Biologie des Métaux, F-38000 Grenoble, France
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9
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Slater JW, Marguet SC, Gray ME, Monaco HA, Sotomayor M, Shafaat HS. Power of the Secondary Sphere: Modulating Hydrogenase Activity in Nickel-Substituted Rubredoxin. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01720] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jeffrey W. Slater
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Sean C. Marguet
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Michelle E. Gray
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Haleigh A. Monaco
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Marcos Sotomayor
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Hannah S. Shafaat
- The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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10
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Dutta A, Shaw WJ. Chemical Method for Evaluating Catalytic Turnover Frequencies (TOF) of Moderate to Slow H 2 Oxidation Electrocatalysts. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00580] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arnab Dutta
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Wendy J. Shaw
- Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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11
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Walsh AP, Laureanti JA, Katipamula S, Chambers G, Priyadarshani N, Lense S, Bays JT, Linehan JC, Shaw WJ. Evaluating the impacts of amino acids in the second and outer coordination spheres of Rh-bis(diphosphine) complexes for CO2 hydrogenation. Faraday Discuss 2019; 215:123-140. [DOI: 10.1039/c8fd00164b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The influence of a biologically inspired second and outer coordination sphere on Rh-bis(diphosphine) CO2 hydrogenation catalysts was explored.
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Affiliation(s)
- Aaron P. Walsh
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Joseph A. Laureanti
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Sriram Katipamula
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Geoffrey M. Chambers
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Nilusha Priyadarshani
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Sheri Lense
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - J. Timothy Bays
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - John C. Linehan
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Wendy J. Shaw
- Physical and Computational Sciences Directorate
- Pacific Northwest National Laboratory
- Richland
- USA
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12
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13
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Khusnutdinova D, Wadsworth BL, Flores M, Beiler AM, Reyes Cruz EA, Zenkov Y, Moore GF. Electrocatalytic Properties of Binuclear Cu(II) Fused Porphyrins for Hydrogen Evolution. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01776] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Diana Khusnutdinova
- School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Brian L. Wadsworth
- School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Marco Flores
- School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Anna M. Beiler
- School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Edgar A. Reyes Cruz
- School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Yegor Zenkov
- School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Gary F. Moore
- School of Molecular Sciences and the Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
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14
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Esmieu C, Raleiras P, Berggren G. From protein engineering to artificial enzymes - biological and biomimetic approaches towards sustainable hydrogen production. SUSTAINABLE ENERGY & FUELS 2018; 2:724-750. [PMID: 31497651 PMCID: PMC6695573 DOI: 10.1039/c7se00582b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 01/31/2018] [Indexed: 06/09/2023]
Abstract
Hydrogen gas is used extensively in industry today and is often put forward as a suitable energy carrier due its high energy density. Currently, the main source of molecular hydrogen is fossil fuels via steam reforming. Consequently, novel production methods are required to improve the sustainability of hydrogen gas for industrial processes, as well as paving the way for its implementation as a future solar fuel. Nature has already developed an elaborate hydrogen economy, where the production and consumption of hydrogen gas is catalysed by hydrogenase enzymes. In this review we summarize efforts on engineering and optimizing these enzymes for biological hydrogen gas production, with an emphasis on their inorganic cofactors. Moreover, we will describe how our understanding of these enzymes has been applied for the preparation of bio-inspired/-mimetic systems for efficient and sustainable hydrogen production.
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Affiliation(s)
- C Esmieu
- Department of Chemistry , Ångström Laboratory , Uppsala University , Box 523 , SE-75120 Uppsala , Sweden .
| | - P Raleiras
- Department of Chemistry , Ångström Laboratory , Uppsala University , Box 523 , SE-75120 Uppsala , Sweden .
| | - G Berggren
- Department of Chemistry , Ångström Laboratory , Uppsala University , Box 523 , SE-75120 Uppsala , Sweden .
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15
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Robinson SJC, Heinekey DM. Hydride & dihydrogen complexes of earth abundant metals: structure, reactivity, and applications to catalysis. Chem Commun (Camb) 2018; 53:669-676. [PMID: 27928559 DOI: 10.1039/c6cc07529k] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recent developments in the chemistry of hydride and dihydrogen complexes of iron, cobalt, and nickel are summarized. Applications in homogeneous catalysis are emphasized.
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Affiliation(s)
| | - D M Heinekey
- University of Washington, Department of Chemistry, Seattle, WA, USA
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16
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Schnidrig S, Bachmann C, Müller P, Weder N, Spingler B, Joliat-Wick E, Mosberger M, Windisch J, Alberto R, Probst B. Structure-Activity and Stability Relationships for Cobalt Polypyridyl-Based Hydrogen-Evolving Catalysts in Water. CHEMSUSCHEM 2017; 10:4570-4580. [PMID: 29052339 DOI: 10.1002/cssc.201701511] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 10/14/2017] [Indexed: 06/07/2023]
Abstract
A series of eight new and three known cobalt polypyridyl-based hydrogen-evolving catalysts (HECs) with distinct electronic and structural differences are benchmarked in photocatalytic runs in water. Methylene-bridged bis-bipyridyl is the preferred scaffold, both in terms of stability and rate. For a cobalt complex of the tetradentate methanol-bridged bispyridyl-bipyridyl complex [CoII Br(tpy)]Br, a detailed mechanistic picture is obtained by combining electrochemistry, spectroscopy, and photocatalysis. In the acidic branch, a proton-coupled electron transfer, assigned to formation of CoIII -H, is found upon reduction of CoII , in line with a pKa (CoIII -H) of approximately 7.25. Subsequent reduction (-0.94 V vs. NHE) and protonation close the catalytic cycle. Methoxy substitution on the bipyridyl scaffold results in the expected cathodic shift of the reduction, but fails to change the pKa (CoIII -H). An analysis of the outcome of the benchmarking in view of this postulated mechanism is given along with an outlook for design criteria for new generations of catalysts.
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Affiliation(s)
- Stephan Schnidrig
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Cyril Bachmann
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Peter Müller
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Nicola Weder
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Bernhard Spingler
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Evelyne Joliat-Wick
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Mathias Mosberger
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Johannes Windisch
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Roger Alberto
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
| | - Benjamin Probst
- Department of Chemistry, University of Zürich, Winterthurerstrasse 190, Switzerland
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17
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Pegis ML, Wise CF, Koronkiewicz B, Mayer JM. Identifying and Breaking Scaling Relations in Molecular Catalysis of Electrochemical Reactions. J Am Chem Soc 2017; 139:11000-11003. [DOI: 10.1021/jacs.7b05642] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Michael L. Pegis
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Catherine F. Wise
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - Brian Koronkiewicz
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
| | - James M. Mayer
- Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
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18
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Gentil S, Lalaoui N, Dutta A, Nedellec Y, Cosnier S, Shaw WJ, Artero V, Le Goff A. Carbon-Nanotube-Supported Bio-Inspired Nickel Catalyst and Its Integration in Hybrid Hydrogen/Air Fuel Cells. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611532] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Solène Gentil
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
- Laboratoire de Chimie et Biologie des Métaux; Univ. Grenoble Alpes, CNRS UMR5249, CEA; 38000 Grenoble France
| | - Noémie Lalaoui
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
| | - Arnab Dutta
- Pacific Northwest National Laboratory; Richland WA 99532 USA
- Current address: Chemistry Department; IIT Gandhinagar; Gujarat 382355 India
| | - Yannig Nedellec
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
| | - Serge Cosnier
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
| | - Wendy J. Shaw
- Pacific Northwest National Laboratory; Richland WA 99532 USA
| | - Vincent Artero
- Laboratoire de Chimie et Biologie des Métaux; Univ. Grenoble Alpes, CNRS UMR5249, CEA; 38000 Grenoble France
| | - Alan Le Goff
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
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19
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Gentil S, Lalaoui N, Dutta A, Nedellec Y, Cosnier S, Shaw WJ, Artero V, Le Goff A. Carbon-Nanotube-Supported Bio-Inspired Nickel Catalyst and Its Integration in Hybrid Hydrogen/Air Fuel Cells. Angew Chem Int Ed Engl 2017; 56:1845-1849. [DOI: 10.1002/anie.201611532] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Revised: 12/12/2016] [Indexed: 12/25/2022]
Affiliation(s)
- Solène Gentil
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
- Laboratoire de Chimie et Biologie des Métaux; Univ. Grenoble Alpes, CNRS UMR5249, CEA; 38000 Grenoble France
| | - Noémie Lalaoui
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
| | - Arnab Dutta
- Pacific Northwest National Laboratory; Richland WA 99532 USA
- Current address: Chemistry Department; IIT Gandhinagar; Gujarat 382355 India
| | - Yannig Nedellec
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
| | - Serge Cosnier
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
| | - Wendy J. Shaw
- Pacific Northwest National Laboratory; Richland WA 99532 USA
| | - Vincent Artero
- Laboratoire de Chimie et Biologie des Métaux; Univ. Grenoble Alpes, CNRS UMR5249, CEA; 38000 Grenoble France
| | - Alan Le Goff
- Univ. Grenoble Alpes, CNRS, DCM UMR 5250; 38000 Grenoble France
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20
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Boralugodage NP, Arachchige RJ, Dutta A, Buchko GW, Shaw WJ. Evaluating the role of acidic, basic, and polar amino acids and dipeptides on a molecular electrocatalyst for H2 oxidation. Catal Sci Technol 2017. [DOI: 10.1039/c6cy02579j] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Outer coordination sphere interactions reduce the overpotential for H2 oxidation catalysts (brown ellipse) compared to those that have –COOH groups but don't have stabilizing interactions (blue ellipse).
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Affiliation(s)
| | | | - Arnab Dutta
- Pacific Northwest National Laboratory
- Richland
- 99352 USA
| | | | - Wendy J. Shaw
- Pacific Northwest National Laboratory
- Richland
- 99352 USA
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21
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Wadsworth BL, Beiler AM, Khusnutdinova D, Jacob SI, Moore GF. Electrocatalytic and Optical Properties of Cobaloxime Catalysts Immobilized at a Surface-Grafted Polymer Interface. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02194] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Brian L. Wadsworth
- School of Molecular Sciences
and Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Anna M. Beiler
- School of Molecular Sciences
and Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Diana Khusnutdinova
- School of Molecular Sciences
and Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Samuel I. Jacob
- School of Molecular Sciences
and Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Gary F. Moore
- School of Molecular Sciences
and Biodesign Institute Center for Applied Structural Discovery (CASD), Arizona State University, Tempe, Arizona 85287-1604, United States
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22
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Priyadarshani N, Dutta A, Ginovska B, Buchko GW, O’Hagan M, Raugei S, Shaw WJ. Achieving Reversible H2/H+ Interconversion at Room Temperature with Enzyme-Inspired Molecular Complexes: A Mechanistic Study. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01433] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nilusha Priyadarshani
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Arnab Dutta
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Bojana Ginovska
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Garry W. Buchko
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Molly O’Hagan
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Simone Raugei
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Wendy J. Shaw
- Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
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