On the kinetics of the hydrogen evolution reaction on nickel in alkaline solution - Part II. Effect of temperature
Abstract
The effect of temperature on the kinetics of the hydrogen evolution reaction (her) on nickel in 1.0 mol dm (-3) NaOH solution was studied. In this article, four sets of experiments were done in a non-isothermal cell. In all experiments only the compartment of the Ni working electrode was thermostated at 278.5, 303.0, 313.0 and 323.0 K, while the reference electrode (Hg \ HgO) was held constantly at 298.0 K. It was found that the transfer coefficient, alpha decreased with temperature. Using the calculated chemical rate constants and the corresponding partial standard rate constants for the Volmer, Heyrovsky and Tafel steps in both directions and the corresponding Arrhenius relationship, the chemical enthalpies of activation and the corresponding pre-exponential factors were determined. It was demonstrated that the limiting current for the her at potentials more negative than - 1.6 V occurs because the her takes place as an activationless process.
Keywords:
hydrogen evolution reaction / chemical rate constant / partial standard rate constant / electrochemical energy of activation / chemical enthalpy of activation / activationless processSource:
Journal of Electroanalytical Chemistry, 2001, 512, 1-2, 27-35Publisher:
- Elsevier S.A.
DOI: 10.1016/S0022-0728(01)00591-5
ISSN: 1572-6657
WoS: 000171971700003
Scopus: 2-s2.0-0035812588
Institution/Community
Tehnološko-metalurški fakultetTY - JOUR AU - Krstajić, Nedeljko AU - Popović, Milica AU - Grgur, Branimir AU - Vojnović, Milan AU - Šepa, Darko PY - 2001 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/376 AB - The effect of temperature on the kinetics of the hydrogen evolution reaction (her) on nickel in 1.0 mol dm (-3) NaOH solution was studied. In this article, four sets of experiments were done in a non-isothermal cell. In all experiments only the compartment of the Ni working electrode was thermostated at 278.5, 303.0, 313.0 and 323.0 K, while the reference electrode (Hg \ HgO) was held constantly at 298.0 K. It was found that the transfer coefficient, alpha decreased with temperature. Using the calculated chemical rate constants and the corresponding partial standard rate constants for the Volmer, Heyrovsky and Tafel steps in both directions and the corresponding Arrhenius relationship, the chemical enthalpies of activation and the corresponding pre-exponential factors were determined. It was demonstrated that the limiting current for the her at potentials more negative than - 1.6 V occurs because the her takes place as an activationless process. PB - Elsevier S.A. T2 - Journal of Electroanalytical Chemistry T1 - On the kinetics of the hydrogen evolution reaction on nickel in alkaline solution - Part II. Effect of temperature EP - 35 IS - 1-2 SP - 27 VL - 512 DO - 10.1016/S0022-0728(01)00591-5 ER -
@article{ author = "Krstajić, Nedeljko and Popović, Milica and Grgur, Branimir and Vojnović, Milan and Šepa, Darko", year = "2001", abstract = "The effect of temperature on the kinetics of the hydrogen evolution reaction (her) on nickel in 1.0 mol dm (-3) NaOH solution was studied. In this article, four sets of experiments were done in a non-isothermal cell. In all experiments only the compartment of the Ni working electrode was thermostated at 278.5, 303.0, 313.0 and 323.0 K, while the reference electrode (Hg \ HgO) was held constantly at 298.0 K. It was found that the transfer coefficient, alpha decreased with temperature. Using the calculated chemical rate constants and the corresponding partial standard rate constants for the Volmer, Heyrovsky and Tafel steps in both directions and the corresponding Arrhenius relationship, the chemical enthalpies of activation and the corresponding pre-exponential factors were determined. It was demonstrated that the limiting current for the her at potentials more negative than - 1.6 V occurs because the her takes place as an activationless process.", publisher = "Elsevier S.A.", journal = "Journal of Electroanalytical Chemistry", title = "On the kinetics of the hydrogen evolution reaction on nickel in alkaline solution - Part II. Effect of temperature", pages = "35-27", number = "1-2", volume = "512", doi = "10.1016/S0022-0728(01)00591-5" }
Krstajić, N., Popović, M., Grgur, B., Vojnović, M.,& Šepa, D.. (2001). On the kinetics of the hydrogen evolution reaction on nickel in alkaline solution - Part II. Effect of temperature. in Journal of Electroanalytical Chemistry Elsevier S.A.., 512(1-2), 27-35. https://doi.org/10.1016/S0022-0728(01)00591-5
Krstajić N, Popović M, Grgur B, Vojnović M, Šepa D. On the kinetics of the hydrogen evolution reaction on nickel in alkaline solution - Part II. Effect of temperature. in Journal of Electroanalytical Chemistry. 2001;512(1-2):27-35. doi:10.1016/S0022-0728(01)00591-5 .
Krstajić, Nedeljko, Popović, Milica, Grgur, Branimir, Vojnović, Milan, Šepa, Darko, "On the kinetics of the hydrogen evolution reaction on nickel in alkaline solution - Part II. Effect of temperature" in Journal of Electroanalytical Chemistry, 512, no. 1-2 (2001):27-35, https://doi.org/10.1016/S0022-0728(01)00591-5 . .