1
|
Skavenborg ML, Møller MS, Miller CJ, Hjelm J, Waite TD, McKenzie CJ. Electrocatalysis of the Oxygen Reduction Reaction by Copper Complexes with Tetradentate Tripodal Ligands. Inorg Chem 2023; 62:18219-18227. [PMID: 37877669 DOI: 10.1021/acs.inorgchem.3c02738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
The tetradentate tripodal ligand scaffold is capable of supporting the expected geometries of the copper ion during the oxygen reduction reaction (ORR) catalysis. As such, we probed the reactivity of copper complexes with these types of ligands by electronically and structurally tweaking the tris(pyridin 2-ylmethyl)amine (tmpa) scaffold by progressively replacing the terminal pyridines with carboxylate donors. This work shows that systems with one carboxylato donor (bpg = bis(pyridin-2-ylmethyl)glycine), (bpp = (3-(bis(pyridin-2-ylmethyl)amino)propanoic acid)) are active in electrocatalyzing the homogeneous ORR under circumneutral aqueous conditions. Turnover frequencies in the range from 105 to 106 s-1, on par with that for Cu-tmpa under identical conditions, were obtained. It is noteworthy that the CuII/CuI redox potentials for the Cu-bpg, Cu-bpp, and Cu-tmpa systems in phosphate-buffered water (pH 7, under Ar) are similar at -0.409, -0.375, and -0.401 V vs Ag/AgCl, respectively. This is rationalized by the influence of the Lewis acidity of the copper ions on the water coligand. Corroborating this are pKa values for [Cu(tmpa)(H2O)]2+, Cu(bpg)(H2O)]+, and [Cu(bpp)(H2O)]+ of 6.6, 8.8, and 10.2, respectively. Thus, the overall charge of the solution species for all three complexes will be +1 at pH 7 and this will be an important determinant for the redox potentials and, in turn, the catalytic overpotentials, which are also similar. A cis carboxylato donor offers H-bonding possibilities for exogenous resting state water and intermediate hydroperoxo coligands. This is reflected by the higher pKa values for Cu-bpp and Cu-bpg compared with that for Cu-tmpa, with the Cu-bpp system furnishing the least strained H-bonding.
Collapse
Affiliation(s)
- Mathias L Skavenborg
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense M 5230, Denmark
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Mads Sondrup Møller
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense M 5230, Denmark
| | - Christopher J Miller
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Johan Hjelm
- Technical University of Denmark, Department of Energy Conversion and Storage, Fysikvej, Building 310, 2800 Kgs Lyngby, Denmark
| | - T David Waite
- Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Christine J McKenzie
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense M 5230, Denmark
| |
Collapse
|
2
|
Hoefnagel ME, Rademaker D, Hetterscheid DGH. Directing the Selectivity of Oxygen Reduction to Water by Confining a Cu Catalyst in a Metal Organic Framework. CHEMSUSCHEM 2023; 16:e202300392. [PMID: 37326580 DOI: 10.1002/cssc.202300392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/17/2023]
Abstract
Electrocatalysis is to play a key role in the transition towards a sustainable chemical and energy industry and active, stable and selective redox catalysts are much needed. Porous structures such as metal organic frameworks (MOFs) are interesting materials as these may influence selectivity of chemical reactions through confinement effects. In this work, the oxygen reduction catalyst Cu-tmpa was incorporated into the NU1000 MOF. Confinement of the catalyst within NU1000 steers the selectivity of the oxygen reduction reaction (ORR) towards water rather than peroxide. This is attributed to retention of the obligatory H2 O2 intermediate in close proximity to the catalytic center. Moreover, the resulting NU1000|Cu-tmpa MOF shows an excellent activity and stability in prolonged electrochemical studies, illustrating the potential of this approach.
Collapse
Affiliation(s)
- Marlene E Hoefnagel
- Leiden Institute of Chemistry, Leiden University, P.O Box 9502, 2300 RA, Leiden, The Netherlands
| | - Dana Rademaker
- Leiden Institute of Chemistry, Leiden University, P.O Box 9502, 2300 RA, Leiden, The Netherlands
| | - Dennis G H Hetterscheid
- Leiden Institute of Chemistry, Leiden University, P.O Box 9502, 2300 RA, Leiden, The Netherlands
| |
Collapse
|
3
|
Venegas R, Muñoz-Becerra K, Juillard S, Zhang L, Oñate R, Ponce I, Vivier V, Recio FJ, Sánchez-Sánchez CM. Proving ligand structure-reactivity correlation on multinuclear copper electrocatalysts supported on carbon black for the oxygen reduction reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
4
|
YAMADA H, MATSUMOTO K, KURATANI K, ARIYOSHI K, MATSUI M, MIZUHATA M. Preface for the 66th Special Feature “Novel Aspects and Approaches to Experimental Methods for Electrochemistry”. ELECTROCHEMISTRY 2022. [DOI: 10.5796/electrochemistry.22-66113] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
- Hirohisa YAMADA
- Department of Chemical Engineering, National Institute of Technology, Nara College
| | | | - Kentaro KURATANI
- Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology (AIST)
| | - Kingo ARIYOSHI
- Graduate School of Engineering, Osaka Metropolitan University
| | | | - Minoru MIZUHATA
- Department of Chemical Science and Engineering, Graduate School of Engineering, Kobe University
| |
Collapse
|
5
|
Vargo NP, Harland JB, Musselman BW, Lehnert N, Ertem MZ, Robinson JR. Calcium‐Ion Binding Mediates the Reversible Interconversion of
Cis
and
Trans
Peroxido Dicopper Cores. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Natasha P. Vargo
- Department of Chemistry Brown University 324 Brook Street Providence RI 02912 USA
| | - Jill B. Harland
- Department of Chemistry and Department of Biophysics University of Michigan 930 North University Avenue Ann Arbor MI 41809-1055 USA
| | - Bradley W. Musselman
- Department of Chemistry and Department of Biophysics University of Michigan 930 North University Avenue Ann Arbor MI 41809-1055 USA
| | - Nicolai Lehnert
- Department of Chemistry and Department of Biophysics University of Michigan 930 North University Avenue Ann Arbor MI 41809-1055 USA
| | - Mehmed Z. Ertem
- Chemistry Division, Energy & Photon Sciences Brookhaven National Laboratory PO Box 5000 Upton NY 11973-5000 USA
| | - Jerome R. Robinson
- Department of Chemistry Brown University 324 Brook Street Providence RI 02912 USA
| |
Collapse
|
6
|
Vargo NP, Harland JB, Musselman BW, Lehnert N, Ertem MZ, Robinson JR. Calcium-Ion Binding Mediates the Reversible Interconversion of Cis and Trans Peroxido Dicopper Cores. Angew Chem Int Ed Engl 2021; 60:19836-19842. [PMID: 34101958 DOI: 10.1002/anie.202105421] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/07/2021] [Indexed: 01/27/2023]
Abstract
Coupled dinuclear copper oxygen cores (Cu2 O2 ) featured in type III copper proteins (hemocyanin, tyrosinase, catechol oxidase) are vital for O2 transport and substrate oxidation in many organisms. μ-1,2-cis peroxido dicopper cores (C P) have been proposed as key structures in the early stages of O2 binding in these proteins; their reversible isomerization to other Cu2 O2 cores are directly relevant to enzyme function. Despite the relevance of such species to type III copper proteins and the broader interest in the properties and reactivity of bimetallic C P cores in biological and synthetic systems, the properties and reactivity of C P Cu2 O2 species remain largely unexplored. Herein, we report the reversible interconversion of μ-1,2-trans peroxido (T P) and C P dicopper cores. CaII mediates this process by reversible binding at the Cu2 O2 core, highlighting the unique capability for metal-ion binding events to stabilize novel reactive fragments and control O2 activation in biomimetic systems.
Collapse
Affiliation(s)
- Natasha P Vargo
- Department of Chemistry, Brown University, 324 Brook Street, Providence, RI, 02912, USA
| | - Jill B Harland
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 North University Avenue, Ann Arbor, MI, 41809-1055, USA
| | - Bradley W Musselman
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 North University Avenue, Ann Arbor, MI, 41809-1055, USA
| | - Nicolai Lehnert
- Department of Chemistry and Department of Biophysics, University of Michigan, 930 North University Avenue, Ann Arbor, MI, 41809-1055, USA
| | - Mehmed Z Ertem
- Chemistry Division, Energy & Photon Sciences, Brookhaven National Laboratory, PO Box 5000, Upton, NY, 11973-5000, USA
| | - Jerome R Robinson
- Department of Chemistry, Brown University, 324 Brook Street, Providence, RI, 02912, USA
| |
Collapse
|
7
|
Man Ngo F, Tse ECM. Bioinorganic Platforms for Sensing, Biomimicry, and Energy Catalysis. CHEM LETT 2021. [DOI: 10.1246/cl.200875] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Fung Man Ngo
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, P. R. China
- Advanced Functional Materials Laboratory, HKU Zhejiang Institute of Research and Innovation, Zhejiang 311305, P. R. China
| | - Edmund C. M. Tse
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, University of Hong Kong, Hong Kong SAR, P. R. China
- Advanced Functional Materials Laboratory, HKU Zhejiang Institute of Research and Innovation, Zhejiang 311305, P. R. China
| |
Collapse
|
8
|
Zhang T, Le Corre L, Reinaud O, Colasson B. A Promising Approach for Controlling the Second Coordination Sphere of Biomimetic Metal Complexes: Encapsulation in a Dynamic Hydrogen-Bonded Capsule. Chemistry 2021; 27:434-443. [PMID: 33048410 DOI: 10.1002/chem.202004370] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/12/2020] [Indexed: 11/09/2022]
Abstract
The design of biomimetic models of metalloenzymes needs to take into account many factors and is therefore a challenging task. We propose in this work an original strategy to control the second coordination sphere of a metal centre and its distal environment. A biomimetic complex, reproducing the first coordination sphere, is encapsulated in a self-assembled hydrogen-bonded capsule. The cationic complex is co-encapsulated with its counter-anion or with solvent molecules. The capsule is dynamic, allowing a fast in/out exchange of the co-encapsulated species. It also provides both a hydrogen-bonding site in the second coordination sphere and a source of proton as it can be deprotonated in the presence of the complex, providing a globally neutral host-guest assembly. This simple and broad scope strategy is unprecedented in biomimetic studies. The approach appears to be a very promising method for the stabilisation of reactive species and for the study of their reactivity.
Collapse
Affiliation(s)
- Tongtong Zhang
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
| | - Laurent Le Corre
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
| | - Olivia Reinaud
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
| | - Benoit Colasson
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
| |
Collapse
|
9
|
Smits NWG, van Dijk B, de Bruin I, Groeneveld SLT, Siegler MA, Hetterscheid DGH. Influence of Ligand Denticity and Flexibility on the Molecular Copper Mediated Oxygen Reduction Reaction. Inorg Chem 2020; 59:16398-16409. [PMID: 33108871 PMCID: PMC7672700 DOI: 10.1021/acs.inorgchem.0c02204] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
To date, the copper complex with
the tris(2-pyridylmethyl)amine
(tmpa) ligand (Cu-tmpa) catalyzes
the ORR with the highest reported turnover frequency (TOF) for any
molecular copper catalyst. To gain insight into the importance of
the tetradentate nature and high flexibility of the tmpa ligand for efficient four-electron ORR catalysis, the redox and
electrocatalytic ORR behavior of the copper complexes of 2,2′:6′,2″-terpyridine
(terpy) and bis(2-pyridylmethyl)amine (bmpa) (Cu-terpy and Cu-bmpa, respectively) were investigated in the present study. With a combination
of cyclic voltammetry and rotating ring disk electrode measurements,
we demonstrate that the presence of the terpy and bmpa ligands results in a decrease in catalytic ORR activity
and an increase in Faradaic efficiency for H2O2 production. The lower catalytic activity is shown to be the result
of a stabilization of the CuI state of the complex compared
to the earlier reported Cu-tmpa catalyst.
This stabilization is most likely caused by the lower electron donating
character of the tridentate terpy and bmpa ligands compared to the tetradentate tmpa ligand. The
Laviron plots of the redox behavior of Cu-terpy and Cu-bmpa indicated that the formation
of the ORR active catalyst involves relatively slow electron transfer
kinetics which is caused by the inability of Cu-terpy and Cu-bmpa to form the preferred
tetrahedral coordination geometry for a CuI complex easily.
Our study illustrates that both the tetradentate nature of the tmpa ligand and the ability of Cu-tmpa to form the preferred tetrahedral coordination geometry for a CuI complex are of utmost importance for ORR catalysis with very
high catalytic rates. Redox and electrocatalytic
ORR behavior of the mononuclear
copper complexes of 2,2′:6′,2″-terpyridine (terpy) and bis(2-pyridylmethyl)amine (bmpa) in
neutral aqueous buffer solution: High Faradaic efficiencies for H2O2 production were revealed along the ORR active
potential window using the rotating ring disk electrode (RRDE), and
the foot-of-the-wave analysis (FOWA) was applied to describe the catalytic
activity quantitatively. Additionally, the stability of the catalysts
under operating conditions receives considerable attention.
Collapse
Affiliation(s)
- Nicole W G Smits
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Bas van Dijk
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Iris de Bruin
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Samantha L T Groeneveld
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Maxime A Siegler
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, United States
| | - Dennis G H Hetterscheid
- Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| |
Collapse
|
10
|
Electrocatalytic Oxygen Reduction at Multinuclear Metal Active Sites Inspired by Metalloenzymes. E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY 2020. [DOI: 10.1380/ejssnt.2020.81] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
11
|
Smits NWG, den Boer D, Wu L, Hofmann JP, Hetterscheid DGH. Elucidation of the Structure of a Thiol Functionalized Cu-tmpa Complex Anchored to Gold via a Self-Assembled Monolayer. Inorg Chem 2019; 58:13007-13019. [PMID: 31549820 PMCID: PMC6784813 DOI: 10.1021/acs.inorgchem.9b01921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
![]()
The structure of the copper complex
of the 6-((1-butanethiol)oxy)-tris(2-pyridylmethyl)amine ligand (Cu-tmpa-O(CH2)4SH) anchored to a gold surface has been investigated.
To enable covalent attachment of the complex to the gold surface,
a heteromolecular self-assembled monolayer (SAM) of butanethiol and
a thiol-substituted tmpa ligand was used. Subsequent formation of
the immobilized copper complex by cyclic voltammetry in the presence
of Cu(OTf)2 resulted in the formation of the anchored Cu-tmpa-O(CH2)4SH system which, according to scanning electron
microscopy and X-ray diffraction, did not contain any accumulated
copper nanoparticles or crystalline copper material. Electrochemical
investigation of the heterogenized system barely showed any redox
activity and lacked the typical CuII/I redox couple in
contrast to the homogeneous complex in solution. The difference between
the heterogenized system and the homogeneous complex was confirmed
by X-ray photoelectron spectroscopy; the XPS spectrum did not show
any satellite features of a CuII species but instead showed
the presence of a CuI ion in a ∼2:3 ratio to nitrogen
and a ∼2:7 ratio to sulfur. The +I oxidation state of the copper
species was confirmed by the edge position in the X-ray absorption
near-edge structure (XANES) region of the X-ray absorption spectrum.
These results show that upon immobilization of Cu-tmpa-O(CH2)4SH, the resulting structure is not identical to the
homogeneous CuII-tmpa complex. Upon anchoring, a novel
CuI species is formed instead. This illustrates the importance
of a thorough characterization of heterogenized molecular systems
before drawing any conclusions regarding the structure–function
relationships. Both the oxidation state and the structure of the CuII complex of tris(2-pyridylmethyl)amine (Cu-tmpa) change upon
anchoring it to a gold surface via a self-assembled monolayer. It
was shown by XPS and XANES that a CuI species is formed
upon anchoring instead in which each tmpa ligand contains roughly
two to three copper ions.
Collapse
Affiliation(s)
- Nicole W G Smits
- Leiden Institute of Chemistry , Leiden University , P.O. Box 9502, 2300 RA Leiden , The Netherlands
| | - Daan den Boer
- Leiden Institute of Chemistry , Leiden University , P.O. Box 9502, 2300 RA Leiden , The Netherlands
| | - Longfei Wu
- Laboratory for Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry , Eindhoven University of Technology , P.O. Box 513 , 5600 MB Eindhoven , The Netherlands
| | - Jan P Hofmann
- Laboratory for Inorganic Materials and Catalysis, Department of Chemical Engineering and Chemistry , Eindhoven University of Technology , P.O. Box 513 , 5600 MB Eindhoven , The Netherlands
| | - Dennis G H Hetterscheid
- Leiden Institute of Chemistry , Leiden University , P.O. Box 9502, 2300 RA Leiden , The Netherlands
| |
Collapse
|
12
|
Langerman M, Hetterscheid DGH. Fast Oxygen Reduction Catalyzed by a Copper(II) Tris(2-pyridylmethyl)amine Complex through a Stepwise Mechanism. Angew Chem Int Ed Engl 2019; 58:12974-12978. [PMID: 31339205 DOI: 10.1002/anie.201904075] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Indexed: 11/10/2022]
Abstract
Catalytic pathways for the reduction of dioxygen can either lead to the formation of water or peroxide as the reaction product. We demonstrate that the electrocatalytic reduction of O2 by the pyridylalkylamine copper complex [Cu(tmpa)(L)]2+ in a neutral aqueous solution follows a stepwise 4 e- /4 H+ pathway, in which H2 O2 is formed as a detectable intermediate and subsequently reduced to H2 O in two separate catalytic reactions. These homogeneous catalytic reactions are shown to be first order in catalyst. Coordination of O2 to CuI was found to be the rate-determining step in the formation of the peroxide intermediate. Furthermore, electrochemical studies of the reaction kinetics revealed a high turnover frequency of 1.5×105 s-1 , the highest reported for any molecular copper catalyst.
Collapse
Affiliation(s)
- Michiel Langerman
- Leiden Institute of Chemistry, Leiden University, Gorlaeus Laboratories, P.O Box 9502, 2300, RA, Leiden, The Netherlands
| | - Dennis G H Hetterscheid
- Leiden Institute of Chemistry, Leiden University, Gorlaeus Laboratories, P.O Box 9502, 2300, RA, Leiden, The Netherlands
| |
Collapse
|
13
|
Langerman M, Hetterscheid DGH. Fast Oxygen Reduction Catalyzed by a Copper(II) Tris(2‐pyridylmethyl)amine Complex through a Stepwise Mechanism. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904075] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Michiel Langerman
- Leiden Institute of Chemistry Leiden University Gorlaeus Laboratories P.O Box 9502 2300 RA Leiden The Netherlands
| | - Dennis G. H. Hetterscheid
- Leiden Institute of Chemistry Leiden University Gorlaeus Laboratories P.O Box 9502 2300 RA Leiden The Netherlands
| |
Collapse
|
14
|
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]
|
15
|
Asahi M, Yamazaki SI, Morimoto Y, Itoh S, Ioroi T. Crystal structure and oxygen reduction reaction (ORR) activity of copper(II) complexes of pyridylmethylamine ligands containing a carboxy group. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.10.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
16
|
Fukuzumi S, Lee YM, Nam W. Mechanisms of Two-Electron versus Four-Electron Reduction of Dioxygen Catalyzed by Earth-Abundant Metal Complexes. ChemCatChem 2017. [DOI: 10.1002/cctc.201701064] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shunichi Fukuzumi
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
- Faculty of Science and Engineering; Meijo University; SENTAN, Japan, Science and Technology Agency, JST; Nagoya Aichi 468-8502 Japan
| | - Yong-Min Lee
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Wonwoo Nam
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| |
Collapse
|