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Journals / Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi / 2020 / Cilt: 7 - Sayı: 1

Production of Reduced Graphene Oxide/Zinc Oxide Composites and Super Capacitor Applications

İndirgenmiş Grafen Oksit/Çinko Oksit Kompozitlerin Üretimi ve Süper Kapasitör Uygulamaları

Ayça TANRIVERDİ
Pages
201–210
Publication Date
2020-06-28
DOI
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AI Summary & Key Takeaways

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

Experimental results showed that RGO/ZnO composite electrode obtained by zinc nitrate salt reached maximum specific capacitance (52,71 F/g).

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this work, reduced graphene oxide/zinc oxide (RGO/ZnO) composite materials were synthesized by hydrothermal method.
📊
Key Findings & Data:RGO/ZnO composite materials are produced using different zinc sources (zinc nitrate, zinc chloride and zinc acetate) and effect of different zinc salts on capasitans value of RGO/ZnO electrodes was investigated.
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Conclusion & Impact:Experimental results showed that RGO/ZnO composite electrode obtained by zinc nitrate salt reached maximum specific capacitance (52,71 F/g).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:RGO/ZnO · Composite · Hydrothermal method

Abstract

In this work, reduced graphene oxide/zinc oxide (RGO/ZnO) composite materials were synthesized by hydrothermal method. Synthesized RGO/ZnO composites were used in electrode for super capacitor applications. RGO/ZnO composite materials are produced using different zinc sources (zinc nitrate, zinc chloride and zinc acetate) and effect of different zinc salts on capasitans value of RGO/ZnO electrodes was investigated. Characterization of RGO/ZnO composites was performed with XRD (X-ray diffraction) and SEM (scanning electron microscopy). Electrochemical properties of produced RGO/ZnO electrodes were analyzed in 6M KOH solution by cyclic voltammetry, electrochemical impedance and galvanostatic charge-discharge. Experimental results showed that RGO/ZnO composite electrode obtained by zinc nitrate salt reached maximum specific capacitance (52,71 F/g).

Özet

Bu çalışmada, indirgenmiş grafen oksit/çinko oksit (RGO/ZnO) kompozit malzemeleri hidrotermal yöntem kullanılarak sentezlenmiştir. Sentezlenen RGO/ZnO kompozitleri, süper kapasitör uygulamaları için elektrot yapımında kullanılmıştır. RGO/ZnO kompozit malzemeler farklı çinko kaynakları (çinko nitrat, çinko klorür ve çinko asesat) kullanılarak üretilip, farklı çinko tuzların RGO/ZnO elektrotların kapasitans değerleri üzerindeki etkisi araştırılmıştır. RGO/ZnO kompozitlerin karakterizasyonu XRD (X-ışını kırınımı) ve SEM (taramalı elektron mikroskopisi) ile gerçekleştirilmiştir. Üretilen RGO/ZnO elektrotların elektrokimyasal özellikleri döngüsel voltametri, elektrokimyasal empedans ve galvanostatik şarj-deşarj testleriyle 6M KOH çözeltisi içinde analiz edilmiştir. Yapılan analizler sonucunda; çinko nitrat tuzu kullanılarak elde edilen RGO/ZnO kompozit malzemesi ile oluşturulan elektrodun maksimum spesifik kapasitans değerine (52,71 F/g) ulaştığı belirlenmiştir.

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Cite This Article

TANRIVERDİ, A. (2020). Production of Reduced Graphene Oxide/Zinc Oxide Composites and Super Capacitor Applications. Bilecik Şeyh Edebali Üniversitesi Fen Bilimleri Dergisi, Cilt: 7 - Sayı: 1, 201–210. https://ajindex.com/articles/251553

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References (16)

  1. Winter, M. & Brodd, R.J. (2004). What are batteries, fuel cells and super capacitors. Chemical Reviews. 104, 4245-4269
  2. Çalıker, A. & Özdemir E. (2013). Modern Enerji Depolama Sistemleri ve Kullanm Alanları
  3. Enerji Verimliliği ve Kalitesi Sempozyumu. Kartepe, Kocaeli: 175-179
  4. Burke A. (2000). Ultracapacitors: Why, How and where is the techology. Journal of Power Sources. 91(1), 37-50
  5. Miller, J.R. & Simon, P. (2008). Electrochemical capacitors for energy management. Science. 321, 651- 652
  6. Zhang, L.L. & Zhao, X.S. (2009). Carbon-based materials as super capacitor elektrodes. Chemical Society Reviews. 38, 2520-2531
  7. Hou, J., Shao, Y., Ellis, M.W., Moore, R.B. & Yi, B. (2011). Graphene-based electrochemical energy conversion and storage: fuel cells, super capacitors and lithium-ion batteries. 13,15384-15402
  8. Wu, Z.S, Wang, D.W., Ren, W., Zhao, J., Zhou, G., Li, F. & Cheng, H.M. (2010). Anchoring hydrous RuO2 on graphene sheets for high-performance electrochemical capacitors. Advanced Functional Materials.19, 772-777
  9. Fang, L., Zhang, B., Li, W., Huang, K. & Zihang, Q. (2014). Fabrication of highly dispersed ZnO nanoparticles embedded in graphene nanosheets for high performance supercapacitors. Electrochimica Acta. 148, 164-169
  10. Jayachandiran, J., Yesuraj, J., Arivanandhan, M., Raja, A., Suthanthiraraj, A.S., Jayavel, R. & Nedumaran, D. (2018). Synthesis and electrochemical studies of rGO/ZnO nanocomposite for supercapacitor application. Journal of Inorganic and Organometallic Polymers and Materials. 28 (5), 2046-2055
  11. Mohan, R., Kıran, K.A.B.V., Naman, A. & Subha, J. (2014). Studies on electrochemical properties of ZnO/rGO nanocomposites as electrode materials for supercapacitors. Fullerenes, Nanotubes and Carbon Nanostructures. 23, 691-694
  12. Hummers, M.S. & Offeman, R.E. (1958). Preparation of graphitic oxide. Journal of the American Chemical Society. 80(6), 1339
  13. Xu, C., Wang, X. & Zhu, J. (2008). Graphene-metal particle nanocomposites. Journal of Physical Chemistry.112, 19841-19845
  14. Cai, D. & Song, M. (2007). Preparation of fully exfoliated graphite oxide nano platelets in organic solvents. Journal of Materials Chemistry. 17(35), 3678-3680
  15. Lu, C.H. & Yeh, C.H. (2000). Influence of hydrothermal conditions on the morphology and particle size of zinc oxide powder. Ceramics International. 26, 351-357
  16. Palanikumar, L., Ramasamy, S., Hariharan, G. & Balachandran, C. (2013). Influence of parti