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Silva HN, Toma SH, Hennemann AL, Gonçalves JM, Nakamura M, Araki K, Toyama MM, Toma HE. A New Supramolecular Tetraruthenated Cobalt (II) Porphyrazine Displaying Outstanding Electrocatalytical Performance in Oxygen Evolution Reaction. Molecules 2022; 27:molecules27144598. [PMID: 35889469 PMCID: PMC9318768 DOI: 10.3390/molecules27144598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 12/10/2022] Open
Abstract
A new supramolecular electrocatalyst for Oxygen Evolution Reaction (OER) was synthesized from a central multibridging cobalt tetrapyridylporphyrazine (CoTPyPz) species by attaching four [Ru(bpy)2Cl]+ groups. Both CoTPyPz and the tetraruthenated cobalt porphyrazine species, TRuCoTPyPz, form very homogenous molecular films just by dropcasting their methanol solutions onto GCE electrodes. Such films exhibited low overpotentials for O2 evolution, e.g., 560 e 340 mV, respectively, displaying high stability, typically exceeding 15 h. The kinetic parameters obtained from the Tafel plots showed that the peripheral complexes are very important for the electrocatalytic activity. Hyperspectral Raman images taken along the electrochemical process demonstrated that the cobalt center is the primary active catalyst site, but its performance is enhanced by the ruthenium complexes, which act as electron-donating groups, in the supramolecular system.
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Affiliation(s)
- Hiago N. Silva
- Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, Butanta, São Paulo 05508-000, SP, Brazil; (H.N.S.); (S.H.T.); (A.L.H.); (J.M.G.); (M.N.); (K.A.)
| | - Sérgio Hiroshi Toma
- Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, Butanta, São Paulo 05508-000, SP, Brazil; (H.N.S.); (S.H.T.); (A.L.H.); (J.M.G.); (M.N.); (K.A.)
| | - Artur Luís Hennemann
- Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, Butanta, São Paulo 05508-000, SP, Brazil; (H.N.S.); (S.H.T.); (A.L.H.); (J.M.G.); (M.N.); (K.A.)
| | - Josué M. Gonçalves
- Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, Butanta, São Paulo 05508-000, SP, Brazil; (H.N.S.); (S.H.T.); (A.L.H.); (J.M.G.); (M.N.); (K.A.)
| | - Marcelo Nakamura
- Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, Butanta, São Paulo 05508-000, SP, Brazil; (H.N.S.); (S.H.T.); (A.L.H.); (J.M.G.); (M.N.); (K.A.)
| | - Koiti Araki
- Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, Butanta, São Paulo 05508-000, SP, Brazil; (H.N.S.); (S.H.T.); (A.L.H.); (J.M.G.); (M.N.); (K.A.)
| | - Marcos Makoto Toyama
- Maua Institute of Technology, Praça Mauá, 1-Mauá, São Caetano do Sul 09580-900, SP, Brazil
- Correspondence: (M.M.T.); (H.E.T.)
| | - Henrique Eisi Toma
- Department of Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Lineu Prestes 748, Butanta, São Paulo 05508-000, SP, Brazil; (H.N.S.); (S.H.T.); (A.L.H.); (J.M.G.); (M.N.); (K.A.)
- Correspondence: (M.M.T.); (H.E.T.)
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Abstract
Abstract
Supramolecular polymetallated pyridylporphyrins have been specially designed for exploring the binding and synergism between the macrocyclic system and the peripheral metal complexes. Their chemistry has been reviewed, focusing on the outstanding behavior in solution or as thin organized films generated with several nanomaterials, for application as molecular devices and in energy conversion processes.
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Naue JA, Toma SH, Bonacin JA, Araki K, Toma HE. Probing the binding of tetraplatinum(pyridyl)porphyrin complexes to DNA by means of surface plasmon resonance. J Inorg Biochem 2009; 103:182-9. [DOI: 10.1016/j.jinorgbio.2008.10.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Revised: 09/26/2008] [Accepted: 10/06/2008] [Indexed: 10/21/2022]
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Formiga ALB, Nogueira AF, Araki K, Toma HE. Contrasting photoelectrochemical behaviour of two isomeric supramolecular dyes based on meso-tetra(pyridyl)porphyrin incorporating four (μ3-oxo)- triruthenium(iii) clusters. NEW J CHEM 2008. [DOI: 10.1039/b709888j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Romualdo LL, Bogado AL, Valle EM, Moreira IS, Ellena J, Castellano EE, de Araujo MP, Batista AA. Novel manganese (III) porphyrin containing peripheral “[RuCl(dppb)(X-bipy)]+” cations [dppb=1,4-bis(diphenylphosphino)butane and X=–CH3, –OMe, –Cl]. X-ray structure of the cis-[RuCl(dppb)(bipy)(4-Mepy)]PF6 complex. Polyhedron 2008. [DOI: 10.1016/j.poly.2007.08.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mayer I, Nakamura M, Toma HE, Araki K. Multielectronic redox and electrocatalytic supramolecular films based on a tetraruthenated iron porphyrin. Electrochim Acta 2006. [DOI: 10.1016/j.electacta.2006.05.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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