Effect of various aqueous electrolytes on the electrochemical performance of porous NiO nanocrystals as electrode material for supercapacitor applications

Autor:	Thandavarayan Maiyalagan, Y. Sheeba Sherlin, Thangavel Mahalingam Vijayakumar, M. Jayachandran, S. Kishore babu, M.R. Kannan, R. Goutham kumar
Rok vydání:	2021
Předmět:	Supercapacitor Materials science Mechanical Engineering Nickel oxide Non-blocking I/O Electrolyte Condensed Matter Physics Electrochemistry Nanocrystal Chemical engineering Mechanics of Materials Electrode General Materials Science Porosity
Zdroj:	Materials Letters. 302:130415
ISSN:	0167-577X
DOI:	10.1016/j.matlet.2021.130415
Popis:	The electrochemical performance of porous Nickel oxide nanocrystals synthesised by the hydrothermal method is discussed here. In this porous Nickel oxide, crystal structure and morphology were investigated by XRD, FT-Raman, FE-SEM and HR-TEM. The electrochemical performance of porous Nickel oxide electrode examined by various aqueous electrolytes such as 1 M Na2SO4, 0.5 M KOH and 1 M Na2SO4 + 0.5 M KOH solution. The electrode material delivers high specific capacitance found as 200 F/g at 1 A/g using a single aqueous electrolyte 1 M Na2SO4. The porous Nickel oxide nanocrystals electrode performed the long-term good cyclic stability around 2000 cycles with 91% capacity retention. Here, 1 M Na2SO4 electrolyte achieves high capacity among various electrolytes can be considered as promising electrode material for supercapacitor applications.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::cbff72b1740db3d0bd392e9adfdce151 https://doi.org/10.1016/j.matlet.2021.130415 Zobrazit plný text záznamu Full Text from ScienceDirect