Remarkable stability of supercapacitor material synthesized by manganese oxide filled in multiwalled carbon nanotubes

Kiamahalleh, Meisam Valizadeh; Sata, Suhairi Abd; Buniran, Surani; Zein, Sharif Hussein Sharif

Abstract

Improving the electrochemical stability of manganese oxide/multiwalled carbon nanotubes (MnO 2 /MWCNTs) nanocomposites is of great importance to many electrochemical supercapacitor applications. In this study, the electrochemical properties of MnO 2 filled inside the cavity of MWCNTs were investigated for the first time. The prepared nanocomposite was characterized by means of X-ray photoelectron spectroscopy (XPS), X-ray diffraction patterns (XRD), transmission electron microscopy (TEM) images, scanning electron microscopy (SEM) together with energy dispersive X-ray spectroscopy (EDX) and thermogravimetric analyses (TGA). Electrochemical characterization has been performed using cyclic voltammetry (CV), galvanostatic charging/discharging (CD) test. The TEM image, XRD analysis confirmed the high structural stability and CD test complied the high electrochemical stability of the prepared nanocompo-site. Besides, MnO 2 /MWCNTs nanocomposite supercapacitor showed superior cycling stability in the potential range of 0-1.0V due to the filling of the electroactive material inside the tubes and retained 96% of initial capacitance even over 200 cycles. © 2010 Bentham Science Publishers Ltd.

Citation

Kiamahalleh, M. V., Sata, S. A., Buniran, S., & Zein, S. H. S. (2010). Remarkable stability of supercapacitor material synthesized by manganese oxide filled in multiwalled carbon nanotubes. Current nanoscience, 6(5), 553-559. https://doi.org/10.2174/157341310797575041

• Journal Article Type: Article
• Online Publication Date: Oct 1, 2010
• Publication Date: 2010
• Deposit Date: Jul 7, 2020
• Journal: Current Nanoscience
• Print ISSN: 1573-4137
• Publisher: Bentham Science Publishers
• Peer Reviewed: Peer Reviewed
• Volume: 6
• Issue: 5
• Pages: 553-559
• DOI: https://doi.org/10.2174/157341310797575041
• Keywords: Carbon nanotubes; Manganese Oxide; Multiwalled Carbon Nanotubes; Solatron cell-test system; Supercapacitor Cell; Supercapacitor Material; Carbonaceous materials; Double-layer capacitance; Electric double-layer capacitors (EDLC); Fabricated nanocomposites; Filling; Metal oxides as hybrid supercapacitors; Microstructures of the nanocomposites; Nanocomposite; Polytetrafluoroethylene (PTFE) solution; Porous nanotubes; Redox capacitor; Specific capacitance; Stability; Wet chemical
• Public URL: https://hull-repository.worktribe.com/output/549975
• Publisher URL: https://www.eurekaselect.com/72319/article