Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

MOS Capacitor01:25

MOS Capacitor

752
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
752

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

CuO@ZnO Nanocomposites with Improved Redox Behavior for High-Performance Supercapacitors.

Materials (Basel, Switzerland)·2026
Same author

Annealing-Regulated Co<sub>3</sub>(PO<sub>4</sub>)<sub>2</sub> for Enhanced Electrochemical Kinetics in Asymmetric Supercapacitors.

Molecules (Basel, Switzerland)·2026
Same author

Recent Advancements in Gel-Based Flexible Electronic Sensors.

Gels (Basel, Switzerland)·2026
Same author

Polyacrylic Acid-Driven Design of Nd<sub>2</sub>O<sub>3</sub> Nanostructures for Enhanced Supercapacitor Performance.

Polymers·2026
Same author

Polyethylene Glycol-Assisted Engineering of NiCo<sub>2</sub>S<sub>4</sub> Nanostructures for Enhanced Supercapacitor Performance.

Polymers·2026
Same author

Synergistic Enhancement of WO<sub>3</sub>@Co<sub>3</sub>O<sub>4</sub> Layered Supercapacitors via PAA-Directed Electrodeposition: A Comparative Polymer Strategy with HMTA Surfactant.

Micromachines·2026

Related Experiment Video

Updated: Jun 18, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

12.1K

Ni3V2O8 Marigold Structures with rGO Coating for Enhanced Supercapacitor Performance.

Manesh A Yewale1, Pritam J Morankar2, Vineet Kumar1

  • 1School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea.

Micromachines
|July 27, 2024
PubMed
Summary

This study synthesized Ni3V2O8-reduced graphene oxide (NVO-rGO) for supercapacitors. NVO-rGO demonstrated excellent electrochemical performance, showing potential as a high-performance electrode material.

Keywords:
FESEMNi3V2O8Ni3V2O8-rGO nanoparticlesTEMXPShydrothermal synthesissupercapacitor

More Related Videos

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
08:59

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Published on: November 30, 2022

4.4K
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.1K

Related Experiment Videos

Last Updated: Jun 18, 2025

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
12:00

Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System

Published on: January 7, 2022

12.1K
Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance
08:59

Synthesizing a Gel Polymer Electrolyte for Supercapacitors, Assembling a Supercapacitor Using a Coin Cell, and Measuring Gel Electrolyte Performance

Published on: November 30, 2022

4.4K
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.1K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Supercapacitors are crucial energy storage devices.
  • Developing high-performance electrode materials is essential for advancing supercapacitor technology.
  • Nickel-vanadium oxides and reduced graphene oxide are promising candidates for supercapacitor electrodes.

Purpose of the Study:

  • To synthesize and characterize Ni3V2O8 (NVO) and NVO-reduced graphene oxide (NVO-rGO) composites.
  • To evaluate the electrochemical performance of NVO-rGO as an electrode material for supercapacitors.
  • To construct and test an asymmetric supercapacitor device using NVO-rGO.

Main Methods:

  • Hydrothermal synthesis for NVO and NVO-rGO.
  • X-ray diffraction (XRD) for crystalline structure analysis.
  • Field emission scanning electron microscopy (FESEM) for morphology.
  • X-ray photoelectron spectroscopy (XPS) for chemical states.
  • Electrochemical impedance spectroscopy (EIS), Galvanostatic charge-discharge (GCD), and cyclic voltammetry (CV) for performance evaluation.

Main Results:

  • NVO-rGO exhibited a specific capacitance of 132 F/g, energy density of 5.04 Wh/kg, and power density of 187 W/kg.
  • An asymmetric supercapacitor using NVO-rGO and activated carbon achieved a specific capacitance of 7.85 F/g, energy density of 3.52 Wh/kg, and power density of 225 W/kg.
  • The asymmetric supercapacitor demonstrated 99% columbic efficiency and 87% energy retention over cyclic stability tests.

Conclusions:

  • NVO-rGO is a promising high-performance electrode material for supercapacitors.
  • The composite structure enhances electrochemical properties compared to bare NVO.
  • The developed asymmetric supercapacitor shows good energy and power density with stable cycling performance.