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Pregled bibliografske jedinice broj: 673775

Cyclic multipulse voltammetric techniques. Part II : EC mechanism


Jadreško, Dijana; Zelić, Marina
Cyclic multipulse voltammetric techniques. Part II : EC mechanism // Journal of electroanalytical chemistry, 714/715 (2014), 30-37 doi:10.1016/j.jelechem.2013.12.022 (međunarodna recenzija, članak, znanstveni)


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Naslov
Cyclic multipulse voltammetric techniques. Part II : EC mechanism

Autori
Jadreško, Dijana ; Zelić, Marina

Izvornik
Journal of electroanalytical chemistry (1572-6657) 714/715 (2014); 30-37

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
cyclic multi pulse voltammetry; cyclic differential multi pulse voltammetry; cyclic square-wave voltammetry; EC mechanism; rate constant

Sažetak
A theoretical analysis of electrode processes controlled by kinetics of follow-up homogeneous chemical reaction under conditions of (simple) cyclic multi pulse voltammetry (CMPV), cyclic differential multi pulse voltammetry (CDMPV) and cyclic square-wave voltammetry (CSWV) is presented. The study was performed under linear diffusion conditions and for equal diffusion coefficients of all participants of the electrode process. Chemical reaction changes the shape and position of CMPV response, compared to a simple reversible electrode reaction. As the chemical process becomes faster, forward/reduction wave decreases whereas a pronounced maximum appears on it. On the other hand, the influence of following chemical reaction on the shape of CDMPV and CSWV reduction signal is not significant, while their voltammograms shifted towards more positive potentials as well. Experimentally, the rate constant of follow-up chemical reaction (kf) can be estimated from the linear dependence of limiting to maximum reduction currents ratio (il, c/imax, c) on log(tp) in CMPV, as well as of anodic to cathodic net peak currents ratio (∆ip, a/ ∆ip, c) on log(tp) in CDMPV and on log(f) in CSWV. Combination of two or more cyclic multipulse voltammetric techniques gives more information about kinetics i.e. more precise determination/estimation of the rate constant of follow-up chemical reaction, compared with application of only one technique.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
098-0982904-2907 - Elektroanalitička istraživanja mikrokristala i tragova otopljenih supstanci (Lovrić, Milivoj, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb

Profili:

Avatar Url Dijana Jadreško (autor)

Avatar Url Marina Zelić (autor)

Citiraj ovu publikaciju:

Jadreško, Dijana; Zelić, Marina
Cyclic multipulse voltammetric techniques. Part II : EC mechanism // Journal of electroanalytical chemistry, 714/715 (2014), 30-37 doi:10.1016/j.jelechem.2013.12.022 (međunarodna recenzija, članak, znanstveni)
Jadreško, D. & Zelić, M. (2014) Cyclic multipulse voltammetric techniques. Part II : EC mechanism. Journal of electroanalytical chemistry, 714/715, 30-37 doi:10.1016/j.jelechem.2013.12.022.
@article{article, author = {Jadre\v{s}ko, Dijana and Zeli\'{c}, Marina}, year = {2014}, pages = {30-37}, DOI = {10.1016/j.jelechem.2013.12.022}, keywords = {cyclic multi pulse voltammetry, cyclic differential multi pulse voltammetry, cyclic square-wave voltammetry, EC mechanism, rate constant}, journal = {Journal of electroanalytical chemistry}, doi = {10.1016/j.jelechem.2013.12.022}, volume = {714/715}, issn = {1572-6657}, title = {Cyclic multipulse voltammetric techniques. Part II : EC mechanism}, keyword = {cyclic multi pulse voltammetry, cyclic differential multi pulse voltammetry, cyclic square-wave voltammetry, EC mechanism, rate constant} }
@article{article, author = {Jadre\v{s}ko, Dijana and Zeli\'{c}, Marina}, year = {2014}, pages = {30-37}, DOI = {10.1016/j.jelechem.2013.12.022}, keywords = {cyclic multi pulse voltammetry, cyclic differential multi pulse voltammetry, cyclic square-wave voltammetry, EC mechanism, rate constant}, journal = {Journal of electroanalytical chemistry}, doi = {10.1016/j.jelechem.2013.12.022}, volume = {714/715}, issn = {1572-6657}, title = {Cyclic multipulse voltammetric techniques. Part II : EC mechanism}, keyword = {cyclic multi pulse voltammetry, cyclic differential multi pulse voltammetry, cyclic square-wave voltammetry, EC mechanism, rate constant} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Citati:





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