-
- Home
- Journals
- Bulletin of Materials Science
-
VEMBU SURYANARAYANAN
Articles written in Bulletin of Materials Science
-
-
Volume 46 All articles Published: 12 May 2023 Article ID 0098
KANAGARAJAN KIRUTHIKA VELAYUTHAM RENUGA VEMBU SURYANARAYANAN
In this study, the spinel copper manganese oxide (CMO) nanocrystals were synthesized by simple chemical co-precipitation method and was characterized by Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy (TEM). The morphology of the material found from TEM is to be spherical in shape with the crystallite size of 3.51 nm. The electrochemical characterizations of the CMO were performed by cyclic voltammetry, galvanostatic charge/discharge and electrochemical impedance spectroscopy. The specific capacitance of CMO was found to be 280 F g$^{-1}$ at a current density of 1 A g$^{-1}$. To enhance its capacitance value, it was doped with multi-walled carbon nanotube and poly(3,4-ethylenedioxythiophene) polystyrene sulphonate (PEDOT:PSS) and their electrochemical characterizations were recorded and compared with CMO. Doped material (CMO/MWCNT/PEDOT:PSS) exhibits a high specific capacitance of 1087 F g$^{-1}$ at current density of 1 A g$^{-1}$ with a good rate performance and retained an excellent electrochemical stability of 104% capacitance retention and coulombic efficiency of 101% over 10,000 cycles at a current density of 5 A g$^{-1}$. This work recommends an idea for such advanced electrode material for efficient supercapacitors.
-
Volume 46 All articles Published: 5 July 2023 Article ID 0142
KANAGARAJAN KIRUTHIKA VELAYUTHAM RENUGA VEMBU SURYANARAYANAN
-
-
Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
-
Bulletin of Materials Science | News
-
Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
-