Reduction of graphene oxide thin films using a stepwise thermal annealing assisted by L-ascorbic acid

Basit Öğe Kaydı
dc.authorid0000-0003-2960-5188en_US
dc.contributor.authorTas, Mahmut
dc.contributor.authorAltin, Yasin
dc.contributor.authorBedeloğlu, Ayşe
dc.date.accessioned2021-03-20T20:12:43Z
dc.date.available2021-03-20T20:12:43Z
dc.date.issued2019
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Polimer Malzeme Mühendisliği Bölümüen_US
dc.description.abstractIn this study, an environmental and economical multi-step reduction method has been developed for the reduction of graphene oxide thin films more efficiently. Within the scope of the method, the graphene oxide films produced were subjected to the process of chemical reduction with L-ascorbic acid (Vitamin C) as the first step and then to the process of thermal reduction that can be performed through progressive thermal annealing without any need for special atmospheric conditions as the second step. In addition, the impact of L-ascorbic acid solutions with different molarities (5, 25, 50, 100, 200, 400 and 800 mM) on the conductivity of the reduced graphene oxide produced was examined and compared with hydrazine hydrate for the same concentrations. Besides, the impact of different thermal annealing temperatures (70 degrees C, 120 degrees C and 300 degrees C) and the process of intermediate drying on the conductivity of the reduced graphene oxide thin films were investigated. The results show that the graphene oxide thin films were best reduced through 800 mM L-ascorbic acid and progressive thermal annealing combination (at 70 degrees C, 120 degrees C and 300 degrees C respectively) and that 13.2 k Omega/sq. surface resistivity was achieved and that the intermediate heating at 120 degrees C made at least 10% positive contribution to this.en_US
dc.description.sponsorshipBursa Technical University, Scientific Research Projects (BAP) [2015-02-004]en_US
dc.description.sponsorshipThis research was by Bursa Technical University, Scientific Research Projects (BAP), Project No: 2015-02-004.en_US
dc.identifier.doi10.1016/j.diamond.2019.01.009en_US
dc.identifier.endpage247en_US
dc.identifier.issn0925-9635
dc.identifier.issn1879-0062
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage242en_US
dc.identifier.urihttp://doi.org/10.1016/j.diamond.2019.01.009
dc.identifier.urihttps://hdl.handle.net/20.500.12885/672
dc.identifier.volume92en_US
dc.identifier.wosWOS:000461129800031en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorBedeloğlu, Ayşe
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofDiamond And Related Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject[No Keywords]en_US
dc.titleReduction of graphene oxide thin films using a stepwise thermal annealing assisted by L-ascorbic aciden_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Polimer Malzeme Mühendisliği Bölümü Yayın Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu