Publication:
Layer-by-layer grown electrodes composed of cationic Fe 3 O 4 nanoparticles and graphene oxide nanosheets for electrochemical energy storage devices

dc.contributor.coauthorErdem, Emre
dc.contributor.departmentDepartment of Chemistry
dc.contributor.departmentGraduate School of Sciences and Engineering
dc.contributor.departmentKUYTAM (Koç University Surface Science and Technology Center)
dc.contributor.kuauthorAcar, Havva Funda Yağcı
dc.contributor.kuauthorÖztuna, Feriha Eylül Saraç
dc.contributor.kuauthorÜnal, Özlem
dc.contributor.kuauthorÜnal, Uğur
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.contributor.schoolcollegeinstituteGRADUATE SCHOOL OF SCIENCES AND ENGINEERING
dc.contributor.schoolcollegeinstituteResearch Center
dc.date.accessioned2024-11-10T00:08:46Z
dc.date.issued2019
dc.description.abstractUltrathin electrodes composed of layer-by-layer assembled (3-aminopropyl)trimethoxysilane functionalized iron oxide nanoparticles and graphene oxide nanosheets were prepared by a simple and low-cost dip coating method without using any binders or conductive additives. The thickness of the Fe3O4/GO films was simply altered with the number of dip coating cycles. Multilayered films were chemically reduced with hydrazine vapor in order to increase the electrical conductivity. Characterization of multilayer films was performed with scanning transmission electron microscopy, UV-vis spectroscopy, atomic force microscopy, quartz crystal microbalance, X-ray photoelectron spectroscopy, and electron paramagnetic resonance spectroscopy. We have performed cyclic voltammetry and electrochemical impedance spectroscopy for the evaluation of Fe3O4/GO multilayers as possible electrochemical capacitor electrodes. Reduced Fe3O4/GO films exhibit high specific capacitances (varying between 200 and 350 F g(-1) at 5 mV s(-1)), Outperforming the layer-by-layer assembled iron oxides/carbon derivatives (carbon nanotube, graphene).
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue6
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipKoc University The authors thank Koc University for funding. Additionally, the authors greatly appreciate KUYTAM for infrastructure, especially Dr. M. Bans Yağcı for the zeta potential measurements. E.E. thanks Loire Valley General Programme for LE STUDIUM/Marie SklodoWSKa-Curie Research Fellowship.
dc.description.volume123
dc.identifier.doi10.1021/acs.jpcc.8b11772
dc.identifier.eissn1932-7455
dc.identifier.issn1932-7447
dc.identifier.quartileQ2
dc.identifier.scopus2-s2.0-85061823798
dc.identifier.urihttps://doi.org/10.1021/acs.jpcc.8b11772
dc.identifier.urihttps://hdl.handle.net/20.500.14288/17005
dc.identifier.wos459223200015
dc.keywordsImpedance spectroscpoy
dc.keywordsMultilayer films
dc.keywordsXps Analysis
dc.keywordsSupercapacitors
dc.keywordsPerformance
dc.language.isoeng
dc.publisherAmer Chemical Soc
dc.relation.ispartofJournal of Physical Chemistry C
dc.subjectChemistry
dc.subjectPhysical chemistry
dc.subjectNanoscience
dc.subjectNanotechnology
dc.subjectMaterials science
dc.titleLayer-by-layer grown electrodes composed of cationic Fe 3 O 4 nanoparticles and graphene oxide nanosheets for electrochemical energy storage devices
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorÖztuna, Feriha Eylül Saraç
local.contributor.kuauthorÜnal, Özlem
local.contributor.kuauthorAcar, Havva Funda Yağcı
local.contributor.kuauthorÜnal, Uğur
local.publication.orgunit1College of Sciences
local.publication.orgunit1GRADUATE SCHOOL OF SCIENCES AND ENGINEERING
local.publication.orgunit1Research Center
local.publication.orgunit2Department of Chemistry
local.publication.orgunit2KUYTAM (Koç University Surface Science and Technology Center)
local.publication.orgunit2Graduate School of Sciences and Engineering
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