On the kinetics of the hydrogen evolution reaction on zinc in sulfate solutions
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The kinetics and mechanism of the hydrogen evolution reaction (her) were studied on zinc in 1.0 mol dm-3 Na2SO4 at 298 K, in the pH range 4.4 - 10. It was found that a combination of classical potentiostatic steady-state voltammetry (PSV) and electrochemical impedance spectroscopy (EIS) can help to elucidate dilemmas concerning the mechanism of this reaction. Thus, over the whole potential region, the reaction path of the her on zinc cannot be presented by the classical Volmer-Tafel-Heyrovsky route. It was found that the very complex S-shape of the polarization curves could be explained by two parallel reaction mechanisms for the her. The first reaction mechanism is a consecutive combination of three steps, in which the surface zinc oxide plays an active role in the her, and second reaction mechanism is a consecutive combination of a Volmer step, followed by a Heyrovsky step. The second mechanism is dominant in the more negative potential region where the active sites for the her are m...etallic zinc.
Ključne reči:
hydrogen evolution reaction / zinc electrode / sulfate solution / spectroscopy of electrochemical impedance / mechanism / NLS fitting / rate constantsIzvor:
Journal of the Serbian Chemical Society, 2001, 66, 11-12, 811-823Izdavač:
- Belgrade : Serbian Chemical Society
DOI: 10.2298/jsc0112811t
ISSN: 0352-5139; 1820-7421 (Online)
WoS: 000172840000007
Scopus: 2-s2.0-0035567626
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Trišović, Tomislav AU - Gajić Krstajić, Ljiljana AU - Krstajić, Nedeljko AU - Vojnović, Milan PY - 2001 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5355 AB - The kinetics and mechanism of the hydrogen evolution reaction (her) were studied on zinc in 1.0 mol dm-3 Na2SO4 at 298 K, in the pH range 4.4 - 10. It was found that a combination of classical potentiostatic steady-state voltammetry (PSV) and electrochemical impedance spectroscopy (EIS) can help to elucidate dilemmas concerning the mechanism of this reaction. Thus, over the whole potential region, the reaction path of the her on zinc cannot be presented by the classical Volmer-Tafel-Heyrovsky route. It was found that the very complex S-shape of the polarization curves could be explained by two parallel reaction mechanisms for the her. The first reaction mechanism is a consecutive combination of three steps, in which the surface zinc oxide plays an active role in the her, and second reaction mechanism is a consecutive combination of a Volmer step, followed by a Heyrovsky step. The second mechanism is dominant in the more negative potential region where the active sites for the her are metallic zinc. PB - Belgrade : Serbian Chemical Society T2 - Journal of the Serbian Chemical Society T1 - On the kinetics of the hydrogen evolution reaction on zinc in sulfate solutions EP - 823 IS - 11-12 SP - 811 VL - 66 DO - 10.2298/jsc0112811t UR - https://hdl.handle.net/21.15107/rcub_dais_286 ER -
@article{ author = "Trišović, Tomislav and Gajić Krstajić, Ljiljana and Krstajić, Nedeljko and Vojnović, Milan", year = "2001", abstract = "The kinetics and mechanism of the hydrogen evolution reaction (her) were studied on zinc in 1.0 mol dm-3 Na2SO4 at 298 K, in the pH range 4.4 - 10. It was found that a combination of classical potentiostatic steady-state voltammetry (PSV) and electrochemical impedance spectroscopy (EIS) can help to elucidate dilemmas concerning the mechanism of this reaction. Thus, over the whole potential region, the reaction path of the her on zinc cannot be presented by the classical Volmer-Tafel-Heyrovsky route. It was found that the very complex S-shape of the polarization curves could be explained by two parallel reaction mechanisms for the her. The first reaction mechanism is a consecutive combination of three steps, in which the surface zinc oxide plays an active role in the her, and second reaction mechanism is a consecutive combination of a Volmer step, followed by a Heyrovsky step. The second mechanism is dominant in the more negative potential region where the active sites for the her are metallic zinc.", publisher = "Belgrade : Serbian Chemical Society", journal = "Journal of the Serbian Chemical Society", title = "On the kinetics of the hydrogen evolution reaction on zinc in sulfate solutions", pages = "823-811", number = "11-12", volume = "66", doi = "10.2298/jsc0112811t", url = "https://hdl.handle.net/21.15107/rcub_dais_286" }
Trišović, T., Gajić Krstajić, L., Krstajić, N.,& Vojnović, M.. (2001). On the kinetics of the hydrogen evolution reaction on zinc in sulfate solutions. in Journal of the Serbian Chemical Society Belgrade : Serbian Chemical Society., 66(11-12), 811-823. https://doi.org/10.2298/jsc0112811t https://hdl.handle.net/21.15107/rcub_dais_286
Trišović T, Gajić Krstajić L, Krstajić N, Vojnović M. On the kinetics of the hydrogen evolution reaction on zinc in sulfate solutions. in Journal of the Serbian Chemical Society. 2001;66(11-12):811-823. doi:10.2298/jsc0112811t https://hdl.handle.net/21.15107/rcub_dais_286 .
Trišović, Tomislav, Gajić Krstajić, Ljiljana, Krstajić, Nedeljko, Vojnović, Milan, "On the kinetics of the hydrogen evolution reaction on zinc in sulfate solutions" in Journal of the Serbian Chemical Society, 66, no. 11-12 (2001):811-823, https://doi.org/10.2298/jsc0112811t ., https://hdl.handle.net/21.15107/rcub_dais_286 .