Advertisement
Published in:
01-03-2024
Flower like cobalt-doped nickel oxide mesoporous microspheres for supercapacitor applications
Published in: Journal of Materials Science: Materials in Electronics | Issue 7/2024
Log inActivate our intelligent search to find suitable subject content or patents.
Select sections of text to find matching patents with Artificial Intelligence. powered by
Select sections of text to find additional relevant content using AI-assisted search. powered by
Abstract
The flower-like NiO and Co-doped NiO mesoporous microspheres were successfully synthesized via hydrothermal method. The structural, morphological and electrochemical properties were studied. The X-ray diffraction analysis reveals the formation of cubic-structured NiO in both the samples. Pore size distribution spectrum confirms the mesoporous nature of the NiO and Co-doped NiO samples. Scanning electron microscopic images shows the formation of NiO and Co-doped NiO microspheres. The electrochemical nature of the NiO based samples were studied using cyclic voltammetric (CV), galvanostatic charge-discharge (GCD) and impedance analysis. The doping of Co enhances the electrochemical properties of NiO. GCD analysis exhibits the specific capacitance of 927 and 1052 Fg−1 at 1 A g−1 for NiO and Co doped NiO microspheres, respectively. The Co-doped NiO microspheres retained 100% of maximum capacitance even after 1000 cycles.