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

793
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...
793
Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

4.7K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
4.7K
Capacitors01:15

Capacitors

437
Capacitors play a crucial role in car radios, where they filter and store frequencies to ensure clear signal reception. Essentially serving as energy storage devices, capacitors store energy within their electric field and are composed of two parallel conducting plates separated by a dielectric.
When a voltage source is connected to a capacitor, positive and negative charges accumulate on the opposite plates. This accumulation generates a potential difference that equals the product of the...
437
Spherical and Cylindrical Capacitor01:26

Spherical and Cylindrical Capacitor

5.7K
A spherical capacitor consists of two concentric conducting spherical shells of radii R1 (inner shell) and R2 (outer shell). The shells have  equal and opposite charges of +Q and −Q, respectively. For an isolated conducting spherical capacitor, the radius of the outer shell can be considered to be infinite.
Conventionally, considering the  symmetry, the electric field between the concentric shells of a spherical capacitor is directed radially outward. The magnitude of the field,...
5.7K
Equivalent Capacitance01:19

Equivalent Capacitance

337
From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...
337
Energy Stored in Capacitors01:10

Energy Stored in Capacitors

495
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...
495

You might also read

Related Articles

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

Sort by
Same author

Impact of Disorder, Porosity, and Surface Chemistry of Salt Templated Carbons on Capacitance.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2025
Same author

Ambiguous Role of Cations in the Long-Term Performance of Electrochemical Capacitors with Aqueous Electrolytes.

ACS applied materials & interfaces·2023
Same author

Operando Monitoring of Local pH Value Changes at the Carbon Electrode Surface in Neutral Sulfate-Based Aqueous Electrochemical Capacitors.

ACS applied materials & interfaces·2022
Same author

Electrochemical Capacitor Performance of Nanotextured Carbon/Transition Metal Dichalcogenides Composites.

Small (Weinheim an der Bergstrasse, Germany)·2021

Related Experiment Video

Updated: Jul 8, 2025

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
09:58

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording

Published on: February 12, 2020

13.5K

Ti3C2Tx MXene as Intriguing Material for Electrochemical Capacitor.

Masoud Foroutan Koudahi1, Elżbieta Frąckowiak1

  • 1Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan, 60-965, Poland.

Small (Weinheim an Der Bergstrasse, Germany)
|December 15, 2023
PubMed
Summary

This study reveals Ti3C2Tx MXene

Keywords:
Ti3C2Tx MXeneaqueous electrolyteelectrochemical capacitorhydrogen storageoverpotentialwide operating voltage

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

12.3K
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

4.5K

Related Experiment Videos

Last Updated: Jul 8, 2025

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording
09:58

Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording

Published on: February 12, 2020

13.5K
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

12.3K
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

4.5K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • MXenes, a novel 2D material, show promise for electrochemical energy storage.
  • Understanding charge storage mechanisms in Ti3C2Tx MXene is crucial for optimizing electrochemical capacitors (ECs).
  • Existing symmetric MXene-based ECs face performance limitations due to asymmetric charge storage.

Purpose of the Study:

  • To investigate the charge storage mechanisms of Ti3C2Tx MXene.
  • To address the limitations of symmetric MXene ECs by designing an asymmetric cell.
  • To enhance the operating voltage and cycling stability of MXene-based ECs.

Main Methods:

  • Electrochemical characterization of Ti3C2Tx MXene electrodes.
  • Analysis of hydrogen electrosorption and interfacial interactions.
  • Fabrication and testing of asymmetric ECs using Ti3C2Tx MXene and porous carbon (BP2000).

Main Results:

  • Ti3C2Tx MXene exhibits effective hydrogen electrosorption under negative polarization with varying interaction strengths.
  • Charge storage mechanisms involve both capacitive and faradaic currents, with limited positive potential range.
  • Asymmetric Ti3C2Tx MXene/BP2000 cells achieve significantly expanded operating voltages (1.3-2 V) and retain 80% capacitance after 22,000 cycles.

Conclusions:

  • The asymmetric design overcomes the charge disproportion issue in symmetric MXene ECs.
  • Ti3C2Tx MXene is a promising material for negative electrodes in high-performance ECs.
  • The developed asymmetric ECs offer enhanced voltage and long-term stability for energy storage applications.