SONOCHEMICAL SYNTHESIS OF SILVER NANOPARTICLES FOR GAS-DIFFUSION ELECTRODES APPLICATION

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creativework.keywordsair gas-diffusion electrode, oxygen reduction reaction, silver nanoparticles, sonochemical synthesis
creativework.publisherUniversity of Chemical Technology and Metallurgyen
dc.contributor.authorMladenova B.
dc.contributor.authorStankulov T.
dc.contributor.authorStankov S.
dc.contributor.authorKarsheva M.
dc.contributor.authorHinkov I.
dc.contributor.authorMomchilov A.
dc.contributor.authorBoukoureshtlieva R.
dc.date.accessioned2024-11-13T14:47:19Z
dc.date.accessioned2024-11-14T07:26:02Z
dc.date.available2024-11-13T14:47:19Z
dc.date.available2024-11-14T07:26:02Z
dc.date.issued2024-01-01
dc.description.abstractThe aim of the current study is to explore the application of silver nanoparticles (AgNPs) as a catalyst in air gas-diffusion electrodes (AGDE). AgNPs have been successfully synthesized through an original sonochemical method. The effects of reagent concentrations, temperature and reaction time were studied as well. Composites of AgNPs and activated carbon (Norit NK) were prepared by using two adsorption methods to demonstrate the catalytic activity. Method 1 involves homogenizing preliminary prepared AgNPs colloid solution and Norit NK followed by evaporation of the suspension. One-step route was used for Method 2, i.e. all components were mixed altogether and sonicated, resulting in the AgNPs formation directly on the surface and inside the pores of Norit NK. Additionally, some of the samples were thermally treated at 300°C for 1h under air and argon. The composites were characterized by X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-Ray analysis (SEM/EDX) and transmission electron microscopy (TEM). The catalytic activity of the obtained composites regarding oxygen reduction reaction (ORR) was investigated in AGDE using an aqueous 4M NaCl electrolyte. The thermally treated composite obtained via Method 2 appears to show improved electrochemical catalytic activity regarding ORR in comparison to the Method 1 samples.
dc.identifier.doi10.59957/jctm.v59.i5.2024.14
dc.identifier.issn1314-7978
dc.identifier.issn1314-7471
dc.identifier.scopusSCOPUS_ID:85204158080en
dc.identifier.urihttps://rlib.uctm.edu/handle/123456789/1516
dc.language.isoen
dc.source.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85204158080&origin=inward
dc.titleSONOCHEMICAL SYNTHESIS OF SILVER NANOPARTICLES FOR GAS-DIFFUSION ELECTRODES APPLICATION
dc.typeArticle
oaire.citation.issue5
oaire.citation.volume59
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