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Nova metoda za monitoring procesa redukcije kiseonika u vodenim rastvorima

dc.creatorMojović, Zorica
dc.creatorJovanović, Dušan M.
dc.creatorJovanović, Larisa
dc.creatorMentus, Slavko
dc.date.accessioned2019-01-30T17:19:17Z
dc.date.available2019-01-30T17:19:17Z
dc.date.issued2009
dc.identifier.issn0354-3285
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/488
dc.description.abstractComposite electrode material based on NaX zeolite and silver dispersed both inside zeolite cavities and between the zeolite crystals, in nitrogen purged 0.1M NaOH solution, yielded the cyclic voltammograms corresponding to silver of very developed real surface area. The same electrode material in oxygen saturated 0.1M NaOH solution, by use of rotating disc technique, yielded the voltammograms which indicate 4e-route of oxygen reduction reaction. Therefore, this composite may be considered as promising one for determination of oxygen in aqueous solutions. Proceeding from the fact that bulk silver is fair electrocatalyst for oxygen reduction in alkaline solution, in this paper we impregnated zeolite NaX with Ag-acetylacetonate/ acetone solution and decomposed Ag-acetylacetonate, in order to obtain finely dispersed silver based catalyst for oxygen reduction. .en
dc.description.abstractKompozitni elektrodni materijal na bazi NaX zeolita i srebra dispergovanog unutar kaveza zeolita i između kristala zeolita, u rastvoru 0.1M NaOH, daje ciklične voltamograme koji odgovaraju srebru sa vrlo razvijenom površinom. Isti elektrodni materijal u 0.1M NaOH rastvoru zasićenom kiseonikom, uz pomoć tehnike rotirajućeg diska, daje voltamograme koji odgovaraju 4e-mehanizmu reakcije redukcije kiseonika. Zato se ovaj kompozit može smatrati pogodnim za monitoring kiseonika u vodenim rastvorima. Polazeći od činjenice da je srebro dobar elektrokatalizator za redukciju kiseonika u alkalnim rastvorima, mi smo impregnirali zeolit NaX rastvorom Agacetilacetonata/acetona i rastvorenim Ag-acetilacetonatom, da bismo dobili katalizator od fino dispergovanog srebra za redukciju kiseonika. .sr
dc.publisherNaučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd
dc.rightsopenAccess
dc.sourceEcologica
dc.subjectzeoliteen
dc.subjecteuthroficationen
dc.subjectmetal nanoclusteren
dc.subjectincorporationen
dc.subjectoxygen reductionreactionen
dc.subjectzeolitsr
dc.subjecteutrofikacijasr
dc.subjectmetalni nanoklastersr
dc.subjectinkorporiranjesr
dc.subjectreakcija redukcije kiseonikasr
dc.titleNew method for monitoring of the oxygen reduction process in aqueous solutionsen
dc.titleNova metoda za monitoring procesa redukcije kiseonika u vodenim rastvorimasr
dc.typearticle
dc.rights.licenseARR
dcterms.abstractЈовановић, Лариса; Мојовић, Зорица; Јовановић, Д.; Ментус, Славко; Нова метода за мониторинг процеса редукције кисеоника у воденим растворима; Нова метода за мониторинг процеса редукције кисеоника у воденим растворима;
dc.citation.volume16
dc.citation.issue54
dc.citation.spage69
dc.citation.epage74
dc.citation.other16(54): 69-74
dc.citation.rankM52
dc.identifier.rcubConv_347
dc.type.versionpublishedVersion


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