Year: 2025
Type: article
Abstract: Vanadium, known for its low cost, multiple valencies, and exceptional theoretical capacitance (pseudo-capacitance), has been investigated for energy applications. Activated carbon (AC) with its conductive and absorptive properties (EDLC behavior), is a well-established material. The composites synthesized from vanadium and derived ACs from various biomass sources have been reported in the literature. This paper also reports the synthesis of VO 2 nanomorphology on coconut shell-derived activated carbon using a hydrothermal method. SEM and TEM images indicated the VO 2 nanorods grown around AC micro-sized particles and fully interacting with each other. A sample containing more activated charcoal exhibited 545.56 F g −1 specific capacity at 0.6 A g −1 current density, which is 8% higher than the sample with less activated charcoal, and it also demonstrated negligible charge transfer resistance. The calculated b value confirmed the mechanism of charge storage. Vanadium has also insulin-enhancing properties for humans; therefore, the synthesized composites were also tested for anti-microbial activity. The results showed that it demonstrated bactericidal activity by inhibiting respiration and damaging the cellular components.
Source: Scientific Reports
Authors: Monika Dumka, Sakshi Juyal, Akansha Rajput, Fateh Singh Gill, Ankit Sharma, Ajay Kumar, Vijay Kumar, Perumal Asaithambi
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,690
OpenAlex ID: W4414511426