Hiago N. Silva
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Hiago N. Silva has a total of 11 co-authors. Here are the top co-authors by number of shared publications:
- Henrique Eisi Toma
Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
3 shared publications - Larissa K. A. da Silva
Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
2 shared publications - Artur Luís Hennemann
Department of Fundamental Chemistry. Institute of Chemistry, University of São Paulo, 05508-000, São Paulo, SP, Brazil
1 shared publication - Douglas Santana Franciscato
Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
1 shared publication - Josué Martins Gonçalves
Mackenzie Institute for Research in Graphene and Nanotechnologies (MackGraphe), Mackenzie Presbyterian Institute, Consolação Street 930, São Paulo, São Paulo 01302-907, Brazil
1 shared publication - João V. Mattioni
Department of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
1 shared publication
Latest Publications
- 19 May 2025
- Published by Springer Nature in Plasmonics
- Vol. 20 (11) , 9501-9507
Plasmonics—Short Communication do Nanoparticles'Lability Influence Plasmonics and SERS?
- 19 May 2025
- Published by Springer Nature in Plasmonics
- Vol. 20 (11) , 9501-9507
Plasmonics—Short Communication do Nanoparticles'Lability Influence Plasmonics and SERS?
- 3 January 2025
- Published by Taylor & Francis in Journal of Coordination Chemistry
- Vol. 78 (1-3) , 111-123
Coordination chemistry and molecular recognition properties of a multifunctional-N-heterocyclic bis(bipyridine)ruthenium(II) complex
- 3 January 2025
- Published by Taylor & Francis in Journal of Coordination Chemistry
- Vol. 78 (1-3) , 111-123
Coordination chemistry and molecular recognition properties of a multifunctional-N-heterocyclic bis(bipyridine)ruthenium(II) complex
- Open Access
A New Supramolecular Tetraruthenated Cobalt (II) Porphyrazine Displaying Outstanding Electrocatalytical Performance in Oxygen Evolution Reaction
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.
Open AccessA New Supramolecular Tetraruthenated Cobalt (II) Porphyrazine Displaying Outstanding Electrocatalytical Performance in Oxygen Evolution Reaction
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.