ORALS
SESSION:
PhysicalSatPM2-R10
| Vayenas International Symposium on Physical Chemistry and its applications for sustainable development |
| Sat Oct, 26 2019 / Room: Aphrodite B (100/Gr. F) | |
| Session Chairs: Renat Sultanov; Libor Kvitek; Session Monitor: TBA |
16:20: [PhysicalSatPM210] Plenary
Reaction Mechanisms in Electrocatalysis: Insights from Electrochemical Methods, Kinetic Modeling and Operando Spectroscopies Elena
Savinova1 ;
1University of Strasbourg, Strasbourg, France;
Paper Id: 11
[Abstract] Electrocatalysis plays a pivotal role in electrochemical energy conversion devices such as fuel and electrolysis cells by decreasing the overpotential of electrode reactions. Understanding mechanisms of the electrode reactions and the nature of active sites and intermediates is an important clue in designing efficient and durable electrode materials for practical applications. Various approaches can be utilized in order to obtain information regarding the mechanisms of electrocatalytic reactions and the nature of the active sites; among them are electrochemical methods, operando spectroscopies, ab initio calculations and kinetic modeling.
In this presentation, we will illustrate these approaches by considering reactions of outstanding practical importance [1-6] such as the oxygen reduction (ORR) and the oxygen evolution reaction (OER), the hydrogen evolution (HER) and the hydrogen oxidation reaction (HOR).
References:
[1] D. Salmazo, M.F. Juarez, A.G. Oshchepkov, O.V. Cherstiouk, A. Bonnefont, S.A. Shermukhamedov, R.R. Nazmutdinov, W. Schmickler, E. R. Savinova, Electrochimica Acta (2019).
[2] A. Bonnefont, A. S. Ryabova, T. Schott, G. Karanguaven, S. Ya. Istomin, E. V. Antipov, E. R. Savinova, Current Opinion in Electrochemistry, , 14 (2019) 23-31.
[3] V. A. Nikitina, A. A. Kurilovich, A. Bonnefont, A. S. Ryabova, R. R. Nazmutdinov, E. R. Savinova, G. A. Tsirlina, J. Electrochem. Soc. 165 (2018) J3199-J3208.
[4] V. A. Saveleva, L. Wang, D. Teschner, T. Jones, A. S. Gago, K. A. Friedrich, S. Zafeiratos, R.Schloigl, E. R. Savinova, ., J. Phys. Chem. Lett, 9 (2018), 3154-3160.
[5] V. A. Saveleva, L. Wang, W. Luo, S. Zafeiratos, C. Ulhaq-Bouillet, A. S. Gago, K. A. Friedrich, E. R. Savinova, .J.Phys.Chem.Lett. 7 (2016) 3240-3245.
[6] A. S. Ryabova, F. S. Napolskiy, T. Poux, S. Ya. Istomin, A. Bonnefont, D. Antipin, A. Ye. Baranchikov, E. E. Levin, A. M. Abakumov, G. Karanguaven, E. V. Antipov, G. A. Tsirlina, E. R. Savinova, Electrochimica Acta, 187 (2016) 161-172.
