The oscillatory Bray-Liebhafsky reaction as a matrix for analyzing enzyme and polymeric catalysts for hydrogen peroxide
Апстракт
The Bray-Liebhafsky (BL) oscillatory reaction, as a reaction where hydrogen peroxide decomposes into the water and oxygen in the presence of iodate and hydrogen ions through a complex mechanism involving a number of intermediates, such as I-, I2, HIO and HIO2, was used as the matrix for analysis of kinetic properties of the catalysts for hydrogen peroxide decomposition. The examined catalysts were enzyme peroxidase (isolated from the horseradish root) and polymeric catalyst (acid form of poly-4-vynil-pyridine functionalized by fericsulfate). The change of kinetic state of the system caused by the presence of added catalyst is reflected in the form of oscillograms, in the time elapsed from the beginning of the reaction to the first oscillation, in the time elapsed from the beginning of the reaction to the end of oscillatory evolution, the number of oscillations, the average period between oscillations and its frequency. Since all these kinetic properties depend on the added amounts of b...oth mentioned catalysts in a complex but analogous manner, a similar reaction mechanism could be expected in both cases.
Braj-Liebhafski (BL) oscilatorna reakcija, kao reakcija u kojoj se vodonik-peroksid, u prisustvu jodata i vodoničnih jona, razlaže na vodu i kiseonik, po kompleksnom mehanizmu koji uključuje nastanak brojnih intermedijera kao što su I-, I2, HIO i HIO2 je korišćena kao matrica za analizu kinetičkih osobina katalizatora za razlaganje vodonik-peroksida. Ispitivani katalizatori su peroksidaza izolovana iz korena rena i sintetički polimer (kiseli oblik poli-4-vinil-piridina funkcionalizovanog sa ferisulfatom). Promene kinetičkog stanja sistema izazvane prisustvom dodatih količina katalizatora se reflektuju na formu oscilograma, na vreme proteklo od početka reakcije do pojave prve oscilacije, na vreme proteklo od početka reakcije do kraja oscilatorne evolucije, broj oscilacija, srednjeg perioda oscilovanja i njihovu frekvenciju. Kako sva ova kinetička svojstva zavise od dodatih količina katalizatora na kompleksan ali analogan način, sličan reakcioni mehanizam se može očekivati u oba slučaja.
Кључне речи:
nonlinear dynamics / kinetics / Bray-Liebhafsky reaction / catalysts / peroxidases / nelinearna dinamika / kinetika / Braj-Liebhafski reakcija / katalizatori / peroksidazaИзвор:
Science of Sintering, 2001, 33, 2, 107-115Издавач:
- International Institute for the Science of Sintering, Beograd
Институција/група
IHTMTY - JOUR AU - Pejić, Nataša AU - Čupić, Željko AU - Anić, Slobodan AU - Vukojević, V. AU - Kolar-Anić, Ljiljana PY - 2001 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/39 AB - The Bray-Liebhafsky (BL) oscillatory reaction, as a reaction where hydrogen peroxide decomposes into the water and oxygen in the presence of iodate and hydrogen ions through a complex mechanism involving a number of intermediates, such as I-, I2, HIO and HIO2, was used as the matrix for analysis of kinetic properties of the catalysts for hydrogen peroxide decomposition. The examined catalysts were enzyme peroxidase (isolated from the horseradish root) and polymeric catalyst (acid form of poly-4-vynil-pyridine functionalized by fericsulfate). The change of kinetic state of the system caused by the presence of added catalyst is reflected in the form of oscillograms, in the time elapsed from the beginning of the reaction to the first oscillation, in the time elapsed from the beginning of the reaction to the end of oscillatory evolution, the number of oscillations, the average period between oscillations and its frequency. Since all these kinetic properties depend on the added amounts of both mentioned catalysts in a complex but analogous manner, a similar reaction mechanism could be expected in both cases. AB - Braj-Liebhafski (BL) oscilatorna reakcija, kao reakcija u kojoj se vodonik-peroksid, u prisustvu jodata i vodoničnih jona, razlaže na vodu i kiseonik, po kompleksnom mehanizmu koji uključuje nastanak brojnih intermedijera kao što su I-, I2, HIO i HIO2 je korišćena kao matrica za analizu kinetičkih osobina katalizatora za razlaganje vodonik-peroksida. Ispitivani katalizatori su peroksidaza izolovana iz korena rena i sintetički polimer (kiseli oblik poli-4-vinil-piridina funkcionalizovanog sa ferisulfatom). Promene kinetičkog stanja sistema izazvane prisustvom dodatih količina katalizatora se reflektuju na formu oscilograma, na vreme proteklo od početka reakcije do pojave prve oscilacije, na vreme proteklo od početka reakcije do kraja oscilatorne evolucije, broj oscilacija, srednjeg perioda oscilovanja i njihovu frekvenciju. Kako sva ova kinetička svojstva zavise od dodatih količina katalizatora na kompleksan ali analogan način, sličan reakcioni mehanizam se može očekivati u oba slučaja. PB - International Institute for the Science of Sintering, Beograd T2 - Science of Sintering T1 - The oscillatory Bray-Liebhafsky reaction as a matrix for analyzing enzyme and polymeric catalysts for hydrogen peroxide VL - 33 IS - 2 SP - 107 EP - 115 UR - https://hdl.handle.net/21.15107/rcub_cer_39 ER -
@article{ author = "Pejić, Nataša and Čupić, Željko and Anić, Slobodan and Vukojević, V. and Kolar-Anić, Ljiljana", year = "2001", abstract = "The Bray-Liebhafsky (BL) oscillatory reaction, as a reaction where hydrogen peroxide decomposes into the water and oxygen in the presence of iodate and hydrogen ions through a complex mechanism involving a number of intermediates, such as I-, I2, HIO and HIO2, was used as the matrix for analysis of kinetic properties of the catalysts for hydrogen peroxide decomposition. The examined catalysts were enzyme peroxidase (isolated from the horseradish root) and polymeric catalyst (acid form of poly-4-vynil-pyridine functionalized by fericsulfate). The change of kinetic state of the system caused by the presence of added catalyst is reflected in the form of oscillograms, in the time elapsed from the beginning of the reaction to the first oscillation, in the time elapsed from the beginning of the reaction to the end of oscillatory evolution, the number of oscillations, the average period between oscillations and its frequency. Since all these kinetic properties depend on the added amounts of both mentioned catalysts in a complex but analogous manner, a similar reaction mechanism could be expected in both cases., Braj-Liebhafski (BL) oscilatorna reakcija, kao reakcija u kojoj se vodonik-peroksid, u prisustvu jodata i vodoničnih jona, razlaže na vodu i kiseonik, po kompleksnom mehanizmu koji uključuje nastanak brojnih intermedijera kao što su I-, I2, HIO i HIO2 je korišćena kao matrica za analizu kinetičkih osobina katalizatora za razlaganje vodonik-peroksida. Ispitivani katalizatori su peroksidaza izolovana iz korena rena i sintetički polimer (kiseli oblik poli-4-vinil-piridina funkcionalizovanog sa ferisulfatom). Promene kinetičkog stanja sistema izazvane prisustvom dodatih količina katalizatora se reflektuju na formu oscilograma, na vreme proteklo od početka reakcije do pojave prve oscilacije, na vreme proteklo od početka reakcije do kraja oscilatorne evolucije, broj oscilacija, srednjeg perioda oscilovanja i njihovu frekvenciju. Kako sva ova kinetička svojstva zavise od dodatih količina katalizatora na kompleksan ali analogan način, sličan reakcioni mehanizam se može očekivati u oba slučaja.", publisher = "International Institute for the Science of Sintering, Beograd", journal = "Science of Sintering", title = "The oscillatory Bray-Liebhafsky reaction as a matrix for analyzing enzyme and polymeric catalysts for hydrogen peroxide", volume = "33", number = "2", pages = "107-115", url = "https://hdl.handle.net/21.15107/rcub_cer_39" }
Pejić, N., Čupić, Ž., Anić, S., Vukojević, V.,& Kolar-Anić, L.. (2001). The oscillatory Bray-Liebhafsky reaction as a matrix for analyzing enzyme and polymeric catalysts for hydrogen peroxide. in Science of Sintering International Institute for the Science of Sintering, Beograd., 33(2), 107-115. https://hdl.handle.net/21.15107/rcub_cer_39
Pejić N, Čupić Ž, Anić S, Vukojević V, Kolar-Anić L. The oscillatory Bray-Liebhafsky reaction as a matrix for analyzing enzyme and polymeric catalysts for hydrogen peroxide. in Science of Sintering. 2001;33(2):107-115. https://hdl.handle.net/21.15107/rcub_cer_39 .
Pejić, Nataša, Čupić, Željko, Anić, Slobodan, Vukojević, V., Kolar-Anić, Ljiljana, "The oscillatory Bray-Liebhafsky reaction as a matrix for analyzing enzyme and polymeric catalysts for hydrogen peroxide" in Science of Sintering, 33, no. 2 (2001):107-115, https://hdl.handle.net/21.15107/rcub_cer_39 .