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dc.contributor.editorMarković, Smilja
dc.creatorMravik, Željko
dc.creatorBajuk-Bogdanović, Danica V.
dc.creatorMarković, Smilja
dc.creatorHolclajtner-Antunović, Ivanka D.
dc.creatorJovanović, Zoran M.
dc.date.accessioned2017-12-11T15:39:35Z
dc.date.available2017-12-11T15:39:35Z
dc.date.available2018-03-06T10:06:11Z
dc.date.issued2017
dc.identifier.isbn9788680321332
dc.identifier.urihttp://itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/1219
dc.identifier.urihttp://itn.sanu.ac.rs/opus4/files/1219/Mravik_16YRC2017.pdf
dc.identifier.urihttp://dais.sanu.ac.rs/123456789/15450
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/7556
dc.description.abstractIn recent years the nanocomposites of graphene oxide (GO) and different inorganic and organic compounds have shown great potential for charge storage applications. In present work we have investigated the influence of 12-tungstophosphoric acid (WPA) on surface chemistry of graphene oxide and thermal stability of nanocomposite. For this purpose nanocomposites with different mass ratios of GO and WPA were prepared. The thermal stability of nanocomposites was investigated by thermogravimetric and differential thermal analysis (TGA-DTA) while changes in surface chemistry of GO and structural properties of WPA were investigated by Fourier transform infrared spectroscopy (FTIR) and temperature programmed desorption (TPD) method. The TGA-DTA measurements of composites have shown that the major mass loss, due to carbon combustion, is shifted to higher temperatures (~500 °C vs. 380 °C of pure GO). Furthermore, when the amount of WPA is higher than 25 mass percent the nanocomposites start to act like individual components, which was also confirmed by FTIR analysis. The amount of surface oxygen groups, monitored by both TPD and FTIR methods, showed ˝V˝ shaped dependence from the quantity of WPA with minimum at about 12 mass percent of WPA. At the same time, the FTIR spectra revealed the structural changes of WPA, displayed as shifting and splitting of characteristic bands of Keggin anion structure.eng
dc.format(2017) 48-48
dc.formatapplication/pdf
dc.languageen
dc.publisherBelgrade : Institute of Technical Sciences of SASA
dc.rightsopenAccess
dc.sourceProgram and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbiaeng
dc.subjectgraphene oxide
dc.subject12-tungstophosphoric acid
dc.subjectthermogravimetric analysis
dc.subjectdifferential thermal analysis
dc.titleSurface chemistry, thermal stability and structural properties of graphene oxide/12-tungstophosphoric acid nanocompositeeng
dc.typeconferenceObject
dc.rights.licenseBY-NC-ND
dcterms.abstractБајук Богдановић, Даница; Холцлајтнер Aнтуновић, Иванка; Јовановић, Зоран; Марковић, Смиља; Мравик, Жељко;
dc.citation.spage48
dc.citation.epage48
dc.identifier.fulltexthttp://vinar.vin.bg.ac.rs//bitstream/id/14153/7550.pdf


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