Investigation of the Capacitive Properties of Molybdenum Oxide-Octadecylamine / Pluronic®F127 Composite Electrodes

Öz

Transition metal oxides (TMOs) are of great interest for their catalytic stability and semi-conductive properties. For supercapacitor electrodes, TMOs are used to alternative materials due to the enhancement of energy density and specific capacitance. In this study, molybdenum trioxide- octadecylamine (MoO₃-ODA) and molybdenum trioxide- EO_nPO_mEO_n-type block-copolymer composite thin films on ITO were prepared by Spin Coating method.  MoO₃-ODA/ITO and MoO₃-Pluronic®F127/ITO electrodes were fabricated with above mentioned thin films and their electrochemical properties were investigated. Our results demonstrated that electrical conductivity increased in the presence of ODA and Pluronic®F127 (EO₁₀₆PO₇₀EO₁₀₆). Furthermore, molybdenum trioxide composite structure prepared with Pluronic®F127 shown better electrochemical energy storage capacity. Our electrochemical studies and results show that MoO₃ composite structures with Pluronic®F127 can be a promising approach to fabricate new generation high-performance supercapacitors. 

Anahtar Kelimeler

• Spin Coating,Thin film,Supercapacitor,Cyclic voltammetry,Cycle life

Molibden Oksit-Oktadesilamin/Pluronic®F127 Kompozit Elektrotların Kapasitif Özelliklerinin İncelenmesi

Öz

Geçiş metal oksitleri (GMO), katalitik aktiviteleri ve yarı iletkenlik özellikleri ile ilgi görmektedirler. Süperkapasitör elektrotlar için de spesifik kapasitansı ve enerji yoğunluğunu artırmak amacıyla GMO’lar alternatif malzemeler olarak kullanılmaktadır. Bu çalışmada, molibden trioksit-oktadesilamin (MoO₃-ODA) ve molibden trioksit- EO_nPO_mEO_n- tipi blok-kopolimer kompozitlerinin ITO cam altlık üzerine döndürerek kaplama (Spin Coating, SC) yöntemiyle ince filmleri hazırlanmıştır. Hazırlanan bu ince filmlerle MoO₃-ODA/ITO ve MoO₃-Pluronic®F127/ITO elektrotlar üretilmiş ve bu elektrotların elektrokimyasal özellikleri araştırılmıştır. Elde edilen bulgular ODA ve Pluronic®F127 (EO₁₀₆PO₇₀EO₁₀₆)’nin varlığında elektriksel iletkenliğin arttığını, ayrıca Pluronic®F127 ile hazırlanan molibden trioksit kompozit yapıların daha iyi elektrokimyasal enerji depolama kapasitesine sahip olduğunu göstermiştir. Elektrokimyasal çalışmalarımız ve elde edilen bu sonuçlar, Pluronic®F127 katkılı MoO₃ kompozit yapılarının yeni nesil yüksek performanslı süperkapasitörlerin üretilmesinde umut verici bir yaklaşım olduğunu göstermektedir. 

Anahtar Kelimeler

• İnce film,Spin Coating,Süperkapasitör,Döngüsel voltametri,Çevrim ömrü

Kaynakça

1. Boota M, Pasini M, Galeotti F, Porzio W, Zhao MQ, Halim J, Gogotsi Y, 2017. Interaction of Polar and Nonpolar Polyfluorenes with Layers of Two-Dimensional Titanium Carbide (MXene): Intercalation and Pseudocapacitance Chemistry of Materials 29:2731-2738.
2. Boxall DL, Osteryoung RA, 2004. Switching potentials and conductivity of polypyrrole films prepared in the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate Journal of the Electrochemical Society 151:E41-E45.
3. Dağcı K, Alanyalıoğlu M, 2016. Preparation of Free-Standing and Flexible Graphene/Ag Nanoparticles/Poly(pyronin Y) Hybrid Paper Electrode for Amperometric Determination of Nitrite ACS Applied Materials & Interfaces 8:2713-2722.
4. Dominguez A, Dutt A, de Melo O, Huerta L, Santana G, 2018. Molybdenum oxide 2-D flakes: role of thickness and annealing treatment on the optoelectronic properties of the material Journal of Materials Science 53:6147-6156.
5. Elezović NR, Babić BM, Radmilović VR, Gojković SL, Krstajić NV, Vračar LM, 2008. Pt/C doped by MoOx as the electrocatalyst for oxygen reduction and methanol oxidation Journal of Power Sources 175:250-255.
6. Elgrishi N, Rountree KJ, McCarthy BD, Rountree ES, Eisenhart TT, Dempsey JL, 2018. A Practical Beginner's Guide to Cyclic Voltammetry Journal of Chemical Education 95:197-206.
7. Glushenkov AM, Hulicova-Jurcakova D, Llewellyn D, Lu GQ, Chen Y, 2010. Structure and Capacitive Properties of Porous Nanocrystalline VN Prepared by Temperature-Programmed Ammonia Reduction of V2O5 Chemistry of Materials 22:914-921.
8. Gur B, Isik M, Kiransan KD, Alanyalioglu M, Beydemir S, Meral K, 2016. High enzymatic activity preservation of malate dehydrogenase immobilized in a Langmuir-Blodgett film and its electrochemical biosensor application for malic acid detection Rsc Advances 6:79792-79797.

9. Jayalakshmi M, Balasubramanian K, 2008. Simple Capacitors to Supercapacitors - An Overview International Journal of Electrochemical Science 3:1196-1217.
10. Kwon SH, Kim B-S, Kim S-G, Lee B-J, Kim M-S, Jung JC, 2016. Preparation of Nano-Porous Activated Carbon Aerogel Using a Single-Step Activation Method for Use as High-Power EDLC Electrode in Organic Electrolyte Journal of Nanoscience and Nanotechnology 16:4598-4604.
11. Ma XM ve ark., 2015. Electrochemical preparation of poly(2,3-dihydrothieno 3,4-b 1,4 dioxin-2-yl)methanol)/carbon fiber core/shell structure composite and its high capacitance performance Journal of Electroanalytical Chemistry 743:53-59.
12. Murugan AV, Viswanath AK, Gopinath CS, Vijayamohanan K, 2006. Highly efficient organic-inorganic poly(3,4-ethylenedioxythiophene)-molybdenum trioxide nanocomposite electrodes for electrochemical supercapacitor Journal of Applied Physics 100.
13. Perananthan S, Bonso JS, Ferraris JP, 2016. Supercapacitors utilizing electrodes derived from polyacrylonitrile fibers incorporating tetramethylammonium oxalate as a porogen Carbon 106:20-27. Qi B, Ni X, Li D, Zheng H, 2008. A Facile Non-hydrothermal Fabrication of Uniform α-MoO3 Nanowires in High Yield vol 37.
14. Reddy RN, Reddy RG, 2002. MnO2 as electrode material for electrochemical capacitors vol 2002. Electrochemical Capacitor and Hybrid Power Sources, vol 7.
15. Rudge A, Davey J, Raistrick I, Gottesfeld S, Ferraris JP, 1994. Conducting polymers as active materials in electrochemical capacitors Journal of Power Sources 47:89-107.
16. Shakir I, Shahid M, Nadeem M, Kang DJ, 2012. Tin oxide coating on molybdenum oxide nanowires for high performance supercapacitor devices Electrochimica Acta 72:134-137.
17. Subbarayudu S, Madhavi V, Uthanna S, 2013. Growth of MoO3 Films by RF Magnetron Sputtering: Studies on the Structural, Optical, and Electrochromic Properties ISRN Condensed Matter Physics 2013:1-9.
18. Sugimoto W, Ohnuma T, Murakami Y, Takasu Y, 2001. Molybdenum oxide/carbon composite electrodes as electrochemical supercapacitors Electrochemical and Solid State Letters 4:A145-A147.
19. Thangappan R, Arivanandhan M, Kalaiselvam S, Jayavel R, Hayakawa Y, 2018. Molybdenum Oxide/Graphene Nanocomposite Electrodes with Enhanced Capacitive Performance for Supercapacitor Applications Journal of Inorganic and Organometallic Polymers and Materials 28:50-62.
20. Vanhardeveld RM, Gunter PLJ, Vanijzendoorn LJ, Wieldraaijer W, Kuipers EW, Niemantsverdriet JW, 1995. Deposition Of Inorganic Salts From Solution On Flat Substrates By Spin-Coating - Theory, Quantification And Application To Model Catalysts, Applied Surface Science 84:339-346.
21. Zhang HQ, Wang Y, Fachini ER, Cabrera CR, 1999. Electrochemically codeposited platinum molybdenum oxide electrode for catalytic oxidation of methanol in acid solution Electrochemical and Solid State Letters 2:437-439.
22. Zhi M, Xiang C, Li J, Li M, Wu N, 2013. Nanostructured carbon–metal oxide composite electrodes for supercapacitors: a review Nanoscale 5:72-88.