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Journals / Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi / 2021 / Cilt: 8 - Sayı: 1

The Effect of Graphene Oxide Exfoliation Degree on Graphene Film Properties

Grafen Oksit Tabakalanma Derecesinin Grafen Film Özelliklerine Etkisi

Nevin ATALAY GENGEÇ
Pages
345–355
Publication Date
2021-06-30
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

While the maximum degree of exfoliation was obtained for GO films in 8 hours of ultrasound, the maximum degree of exfoliation was obtained even in 3 hours of ultrasound duruationby thermal reduction of GO films at 1100 oC.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Interest in graphene, which is a new material, is increasing day by day due to its unique mechanical, electrical, and thermal properties.
📊
Key Findings & Data:GO films with different exfoliation degrees were thermally reduced to graphene at 1100 oC, and the change in reduced graphene film (RGO) properties was investigated.
💡
Conclusion & Impact:While the maximum degree of exfoliation was obtained for GO films in 8 hours of ultrasound, the maximum degree of exfoliation was obtained even in 3 hours of ultrasound duruationby thermal reduction of GO films at 1100 oC.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Graphene · Ultrasound · Thermal Reduction

Abstract

Interest in graphene, which is a new material, is increasing day by day due to its unique mechanical, electrical, and thermal properties. Graphite oxide (GRO), which is synthesized as a result of a series of chemical processes of graphite, was used as the primary material in the production of graphene film. In this study, firstly, graphene oxide (GO) dispersions with different exfoliation degrees were prepared from de-ionized water (DI-water) and repeatedly washed GRO mixture at different ultrasound times. Then, GO films with the same film thickness were produced by casting of the prepared GO dispersions. GO films with different exfoliation degrees were thermally reduced to graphene at 1100 oC, and the change in reduced graphene film (RGO) properties was investigated. XRD, SEM, and FTIR measurements were made for the characterization of thermally reduced graphene and GO films. While the maximum degree of exfoliation was obtained for GO films in 8 hours of ultrasound, the maximum degree of exfoliation was obtained even in 3 hours of ultrasound duruationby thermal reduction of GO films at 1100 oC.

Özet

Yeni bir material olan grafeneolan ilgi, grafenin eşsiz mekanik, elektriksel ve termal özelliklerinden dolayı gün geçtikçe artmaktadır. Grafen film üretiminde, grafitin bir dizi kimyasal işlemi sonucunda sentezlenen grafitoksit (GRO), temel malzeme olarak kullanılmıştır. Bu çalışmada öncelikle, de-iyonizesu (DI-su) ile tekrar tekrar yıkanmış GRO karışımından farklı ultra ses sürelerinde hazırlanan tabakalanma dereceleri farklı grafen oksit (GO) dispersiyonları hazırlanmıştır. Ardından, hazırlanan GO dispersiyonları ile döküm yoluyla aynı film kalınlığında GO filmleri üretilmiştir. Farklı tabakalanma derecesine sahip GO filmler 1100 oC’de termal olarak grafene indirgenmiş ve indirgenmiş grafen film özelliklerindeki değişim incelenmiştir. Termal olarak indirgenmiş grafen ve GO filmlerin karakterizasyonu için XRD, SEM ve FTIR ölçümleri yapılmıştır. GO filmleri için 8 saatlik ultra ses süresinde maksimum tabakalanma derecesi elde edilirken, GO filmlerinin 1100 oC'de termal olarak indirgenmesi ile 3 saatlik ultra ses süresinde dahi maksimum tabakalanma derecesi elde edilmiştir.

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Cite This Article

GENGEÇ, N. A. (2021). The Effect of Graphene Oxide Exfoliation Degree on Graphene Film Properties. Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi, Cilt: 8 - Sayı: 1, 345–355. https://ajindex.com/articles/251464

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