Cubic nanostructure of Co3O4@nitrogen doped graphene oxide/polyindole composite efficient electrodes for high performance energy storage applications

Journal of Materials Research and Technology

Joo-Hyung Kim¹  Arumugam Sivasamy²  Surendra Shinde³  Hemraj Yadav⁴  Sivalingam Ramesh⁵  Heung Soo Kim⁵  Chinna Bathula⁶  Hyun-Seok Kim⁶ 

[1] Corresponding authors.;Chemical Engineering Area, Central Leather Research Institute (CSIR-CLRI), Adyar, Chennai, India;Department of Biological and Environmental Science, College of Life Science and Biotechnology, Dongguk University, Biomedical Campus, Gyeonggi-do 10326, South Korea;Department of Energy and Materials Engineering, Dongguk University-Seoul, Seoul 04620, South Korea;Department of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul, Seoul 04620, South Korea;Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, South Korea;

关键词: Cobalt oxide (Co3O4);    N-doped graphene oxide (NGO);    polyindole (PIN);    Electrochemical properties;    Supercapacitor;    Excellent;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this study, Co3O4@NGO/polyindole composites were synthesized using ultrasonication followed by hydrothermal processes. The structure and morphology of composites were investigated by analytical techniques such as Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, X-ray diffraction analysis (XRD), X-ray photo electron spectroscopy (XPS), scanning electron microscopy (SEM), high resolution transmission electron microscopy (HR-TEM) and Brunauer–Emmett–Teller (BET) surface analysis. The electrochemical performances of the composites were studied by cyclic voltammetry (CV), galvanostatic charge discharge (GCD)and electrochemical impedance spectroscopy analysis (EIS) measurements. As a proof of concept demonstration we have employed Co3O4@NGO/polyindole (PIN) as an electrode in supercapacitor. The Co3O4@NGO/PIN composite showed a capacitance of ∼680 F g−1 at 0.5 Ag−1 and had an excellent cycling stability of 96% after 5000 cycles at 0.5 Ag−1 indicating the material as a potential candidate in supercapacitor applications.

【 授权许可】

Unknown