Show simple item record

dc.creatorBogdanović, Una
dc.creatorPašti, Igor A.
dc.creatorĆirić-Marjanović, Gordana N.
dc.creatorMitrić, Miodrag
dc.creatorAhrenkiel, Scott Phillip
dc.creatorVodnik, Vesna
dc.date.accessioned2018-03-01T16:40:36Z
dc.date.available2018-03-01T16:40:36Z
dc.date.issued2015
dc.identifier.issn1944-8244 (print)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/922
dc.description.abstractGold-polyaniline (Au-PANI) nanocomposite was prepared using a simple interfacial polymerization method, performed in an immiscible water/toluene biphasic system using tetrachloroaurate, AuCl4- as an oxidant. The formation of Au+ nanoparticles (AuNPs) or Au-PANI nanocomposite can be controlled to a certain degree by varying the ratio of initial Au+ and aniline concentrations. Under optimal condition (HAuCl4/aniline ratio is 1:2), green dispersion of Au-PANI nanocomposite is produced in aqueous phase, whose morphology, structure and physicochemical properties are investigated in details. The nanocomposite shows granular morphology with mostly rodlike AuNPs embedded in polymer. It was found that polyaniline in the composite is in the conducting emeraldine salt form, containing high amount of Au (28.85 wt %). Furthermore, the electrical conductivity of the nanocomposite was found to be four-fold higher than that of the polymer itself. In addition, the nanocomposite powder, isolated from the as-prepared aqueous dispersion, can later be easily redispersed in water and further used for various applications. Moreover, the obtained Au-PANI nanocomposite showed excellent electrocatalytic performance toward the electrochemical oxygen reduction reaction (ORR), with high ORR onset potential and good selectivity. This makes it a promising candidate for a new class of Pt-free ORR. catalyst.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45020/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172043/RS//
dc.relationU.S. Department of Energy [DE-FG02-08ER64624]
dc.rightsrestrictedAccessen
dc.sourceACS Applied Materials and Interfacesen
dc.subjectpolyanilineen
dc.subjectAu nanoparticlesen
dc.subjectnanocompositeen
dc.subjectconductivityen
dc.subjectoxygen reduction reactionen
dc.subjectelectrocatalysten
dc.titleInterfacial Synthesis of Gold-Polyaniline Nanocomposite and Its Electrocatalytic Applicationen
dc.typearticleen
dcterms.abstractAхренкиел, Сцотт П.; Богдановић Уна; Пасти, Игор; Цириц-Марјановиц, Гордана; Митрић Миодраг; Водник Весна;
dc.citation.volume7
dc.citation.issue51
dc.citation.spage28393
dc.citation.epage28403
dc.identifier.wos000369448200048
dc.identifier.doi10.1021/acsami.5b09145
dc.citation.rankM21a
dc.identifier.pmid26652303
dc.identifier.scopus2-s2.0-84953269682


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record