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

Facilitated Transport01:19

Facilitated Transport

The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In  facilitated transport, also known as facilitated diffusion, molecules and ions travel across a membrane via...
Facilitated Transport01:19

Facilitated Transport

The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In  facilitated transport, also known as facilitated diffusion, molecules and ions travel across a membrane via...
Facilitated Transport01:19

Facilitated Transport

The chemical and physical properties of plasma membranes cause them to be selectively permeable. Since plasma membranes have both hydrophobic and hydrophilic regions, substances need to be able to transverse both regions. The hydrophobic area of membranes repels substances such as charged ions. Therefore, such substances need special membrane proteins to cross a membrane successfully. In  facilitated transport, also known as facilitated diffusion, molecules and ions travel across a membrane via...
MOS Capacitor01:25

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...
Energy Stored in a Capacitor01:12

Energy Stored in a Capacitor

When an archer pulls the string in a bow, he saves the work done in the form of elastic potential energy. When he releases the string, the potential energy is released as kinetic energy of the arrow. A capacitor works on the same principle in which the work done is saved as electric potential energy. The potential energy (UC) could be calculated by measuring the work done (W) to charge the capacitor.
Energy Stored in Capacitors01:10

Energy Stored in Capacitors

A parallel plate capacitor, when connected to a battery, develops a potential difference across its plates. This potential difference is key to the operation of the capacitor, as it determines how much electrical energy the capacitor can store.
By integrating the equation that relates voltage and current in a capacitor, one can derive an equation for the voltage across the capacitor at any given time. This equation is crucial in understanding and predicting the behavior of capacitors in...

You might also read

Related Articles

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

Sort by
Same author

Lignin-Enhanced Biofoam for Gravity-Resistant Detoxification in Urban Environments.

ACS nano·2026
Same author

Glutathione-Responsive Inhalable Nanotherapeutics for Targeted Macrophage Reprogramming in Chronic Obstructive Pulmonary Disease.

Biomacromolecules·2026
Same author

Retinocortical in-sensor neuromorphic vision platform for NIR-augmented artificial vision.

Nature communications·2026
Same author

Potential risk of aromatic microplastic fragments during urinary excretion.

Journal of hazardous materials·2025
Same author

Anti-Aggregation System for the Enhanced Transdermal Delivery of Cell Membrane-Coated Nanoparticles.

ACS nano·2025
Same author

Skin-to-Muscle Deep Tissue Stimulation System for Muscle Atrophy.

Advanced materials (Deerfield Beach, Fla.)·2025

Related Experiment Video

Updated: May 30, 2026

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
14:42

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Published on: April 25, 2020

Facilitated ion transport in all-solid-state flexible supercapacitors.

Bong Gill Choi1, Jinkee Hong, Won Hi Hong

  • 1Department of Chemical & Biomolecular Engineering (BK21 program), KAIST, Daejeon 305-701, Republic of Korea.

ACS Nano
|August 10, 2011
PubMed
Summary

Researchers developed flexible solid-state supercapacitors using functionalized reduced graphene oxide (f-RGO) electrodes and Nafion electrolytes. These devices exhibit enhanced specific capacitance and durability for advanced energy storage applications.

More Related Videos

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

Related Experiment Videos

Last Updated: May 30, 2026

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators
14:42

Fabrication of Carbon-Based Ionic Electromechanically Active Soft Actuators

Published on: April 25, 2020

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

Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Flexible and all-solid-state energy storage devices require materials with excellent electrical properties and mechanical integrity.
  • Controlled assembly of electrodes and solid electrolytes is crucial for device performance.

Purpose of the Study:

  • To prepare all-solid-state flexible supercapacitors (SCs) using functionalized reduced graphene oxide (f-RGO) and Nafion.
  • To investigate the impact of interfacial engineering on ionic transport and device performance.

Main Methods:

  • Fabrication of f-RGO thin films as electrodes.
  • Assembly with solvent-cast Nafion electrolyte membranes acting as electrolyte and separator.
  • Electrochemical characterization including specific capacitance, rate capability, and cycle durability.

Main Results:

  • f-RGO-based SCs showed a 2-fold higher specific capacitance (118.5 F/g) and improved rate capability (90% retention at 30 A/g) compared to RGO-SCs.
  • Ionic transport was facilitated by Nafion's interfacial engineering, leading to 4-fold faster relaxation.
  • Devices demonstrated good durability over 1000 charge-discharge cycles.

Conclusions:

  • The study provides a rational design for all-solid-state flexible energy-storage devices.
  • Interfacial engineering of f-RGO with Nafion enhances ionic and charge transport.
  • The developed supercapacitors offer superior performance and durability for flexible energy storage.