Oscillatory behavior in the electrochemical oxidation of formic acid on Pt(100): rotation and temperature effects
Само за регистроване кориснике
2001
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
We investigated the oscillatory behavior in the kinetics of formic acid electrooxidation on Pt(100) in 1 mM HClO4 solution. We studied the effect of different experimental parameters on the oscillatory behavior, viz. defined HCOOH mass-transport to the electrode surface by using the rotating disk electrode technique, the temperature of the supporting electrolyte, and the nature of anions. We suggest that the interdependence of the reaction steps during HCOOH oxidation, the adsorption of anions and the competition for adsorption sites among the reaction partners and intermediates lead to complex non-linear kinetics. It was evident that once the individual reactions in the dual path mechanism reach steady state the oscillations vanish. These conditions can be reached either by enhanced formic acid reaction rates induced by electrode rotation or by increased temperature. Under specific conditions of anion and formic acid concentration, relaxational oscillations can be transformed into mix...ed-mode oscillations.
Кључне речи:
oscillatory electrochemical reaction / formic acid / Pt(100) electrodeИзвор:
Journal of Electroanalytical Chemistry, 2001, 500, 1-2, 36-43Издавач:
- Elsevier Science Sa, Lausanne
DOI: 10.1016/S0022-0728(00)00342-9
ISSN: 1572-6657
WoS: 000168192000006
Scopus: 2-s2.0-0035278450
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Schmidt, TJ AU - Grgur, Branimir AU - Marković, NM AU - Rose, PN PY - 2001 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/359 AB - We investigated the oscillatory behavior in the kinetics of formic acid electrooxidation on Pt(100) in 1 mM HClO4 solution. We studied the effect of different experimental parameters on the oscillatory behavior, viz. defined HCOOH mass-transport to the electrode surface by using the rotating disk electrode technique, the temperature of the supporting electrolyte, and the nature of anions. We suggest that the interdependence of the reaction steps during HCOOH oxidation, the adsorption of anions and the competition for adsorption sites among the reaction partners and intermediates lead to complex non-linear kinetics. It was evident that once the individual reactions in the dual path mechanism reach steady state the oscillations vanish. These conditions can be reached either by enhanced formic acid reaction rates induced by electrode rotation or by increased temperature. Under specific conditions of anion and formic acid concentration, relaxational oscillations can be transformed into mixed-mode oscillations. PB - Elsevier Science Sa, Lausanne T2 - Journal of Electroanalytical Chemistry T1 - Oscillatory behavior in the electrochemical oxidation of formic acid on Pt(100): rotation and temperature effects EP - 43 IS - 1-2 SP - 36 VL - 500 DO - 10.1016/S0022-0728(00)00342-9 ER -
@article{ author = "Schmidt, TJ and Grgur, Branimir and Marković, NM and Rose, PN", year = "2001", abstract = "We investigated the oscillatory behavior in the kinetics of formic acid electrooxidation on Pt(100) in 1 mM HClO4 solution. We studied the effect of different experimental parameters on the oscillatory behavior, viz. defined HCOOH mass-transport to the electrode surface by using the rotating disk electrode technique, the temperature of the supporting electrolyte, and the nature of anions. We suggest that the interdependence of the reaction steps during HCOOH oxidation, the adsorption of anions and the competition for adsorption sites among the reaction partners and intermediates lead to complex non-linear kinetics. It was evident that once the individual reactions in the dual path mechanism reach steady state the oscillations vanish. These conditions can be reached either by enhanced formic acid reaction rates induced by electrode rotation or by increased temperature. Under specific conditions of anion and formic acid concentration, relaxational oscillations can be transformed into mixed-mode oscillations.", publisher = "Elsevier Science Sa, Lausanne", journal = "Journal of Electroanalytical Chemistry", title = "Oscillatory behavior in the electrochemical oxidation of formic acid on Pt(100): rotation and temperature effects", pages = "43-36", number = "1-2", volume = "500", doi = "10.1016/S0022-0728(00)00342-9" }
Schmidt, T., Grgur, B., Marković, N.,& Rose, P.. (2001). Oscillatory behavior in the electrochemical oxidation of formic acid on Pt(100): rotation and temperature effects. in Journal of Electroanalytical Chemistry Elsevier Science Sa, Lausanne., 500(1-2), 36-43. https://doi.org/10.1016/S0022-0728(00)00342-9
Schmidt T, Grgur B, Marković N, Rose P. Oscillatory behavior in the electrochemical oxidation of formic acid on Pt(100): rotation and temperature effects. in Journal of Electroanalytical Chemistry. 2001;500(1-2):36-43. doi:10.1016/S0022-0728(00)00342-9 .
Schmidt, TJ, Grgur, Branimir, Marković, NM, Rose, PN, "Oscillatory behavior in the electrochemical oxidation of formic acid on Pt(100): rotation and temperature effects" in Journal of Electroanalytical Chemistry, 500, no. 1-2 (2001):36-43, https://doi.org/10.1016/S0022-0728(00)00342-9 . .