Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

MOS Capacitor

MOS Capacitor

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...

You might also read

Related Articles

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

Sort by

Same author

Four-Synergy Piezoelectric Microspheres Based on Bone Self-Mineralization for Enhanced Bone Regeneration.

ACS applied bio materials·2026

Same author

In Situ Growth of ZIF-67 on Cellulose Paper via Mussel-Inspired Chemistry to Construct Superhydrophobic Sheets for Efficient Oil-Water Separation.

ACS applied materials & interfaces·2026

Same author

Synergistic Anode and Cathode Stabilization in Aqueous Zn-Ion Batteries via a pH-Stabilizing and Interface-Adsorbing Additive.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Multifunctional self-healing hemicellulose-based hydrogel for antimicrobial wound dressings and motion-responsive wearable sensing.

Carbohydrate polymers·2025

Same author

Low-loss, gap-filling, nested, anti-resonant nodeless fiber in the ultraviolet band.

Optics letters·2025

Same author

PANI-Promoted Controlled Synthesis of CoO/Co/Hollow C Fibres: Microstructural Regulation and Electromagnetic Wave Absorption Optimization.

Small (Weinheim an der Bergstrasse, Germany)·2025

Search research articles

Related Experiment Video

Updated: Aug 9, 2025

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

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

Published on: November 30, 2022

Sodium alginate-based gel electrodes without binder for high-performance supercapacitors.

Songjie Jing¹, Zhe Sun¹, Keqi Qu¹

¹Key Laboratory of Bio-based Material Science & Technology, Ministry of Education, and College of Materials Science and Engineering, Northeast Forestry University, Harbin 150040, China; Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China.

International Journal of Biological Macromolecules

|February 21, 2023

Summary

Researchers developed a novel binder-free gel electrode using reduced graphene oxide, sodium alginate, and copper cobalt sulfide (rGSC). This composite material enhances electrochemical activity and supercapacitor performance, offering higher energy density and capacitance.

Keywords:

Binder-free Sodium alginate Supercapacitor

More Related Videos

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

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

Published on: January 7, 2022

Bridging the Bio-Electronic Interface with Biofabrication

Bridging the Bio-Electronic Interface with Biofabrication

Published on: June 6, 2012

Related Experiment Videos

Last Updated: Aug 9, 2025

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

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

Published on: November 30, 2022

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

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

Published on: January 7, 2022

Bridging the Bio-Electronic Interface with Biofabrication

Bridging the Bio-Electronic Interface with Biofabrication

Published on: June 6, 2012

Area of Science:

Materials Science
Electrochemistry
Nanotechnology

Background:

Binder use in electrodes decreases active material volume and electrochemical performance.
Developing binder-free electrode materials is crucial for enhanced energy storage.

Purpose of the Study:

To design and synthesize a novel ternary composite gel electrode without binders.
To investigate the electrochemical properties and supercapacitor performance of the new material.

Main Methods:

A convenient hydrothermal method was used to synthesize the reduced graphene oxide/sodium alginate/copper cobalt sulfide (rGSC) composite.
The electrochemical performance was evaluated using cyclic voltammetry and galvanostatic charge-discharge.
An asymmetric supercapacitor was constructed using rGSC and activated carbon.

Main Results:

The rGSC electrode demonstrated a dual-network structure, improving encapsulation of copper cobalt sulfide and simplifying electron transfer.
The electrode achieved a specific capacitance of 1600.25 F g⁻¹ at 10 mV s⁻¹.
The asymmetric supercapacitor exhibited high energy/power density (10.7 Wh kg⁻¹/1329.1 W kg⁻¹).

Conclusions:

The binder-free rGSC gel electrode offers significantly enhanced electrochemical performance.
This strategy provides a promising approach for developing high-performance gel electrodes for supercapacitors.
The material shows potential for applications requiring high energy density and capacitance.