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Related Concept Videos

MOS Capacitor01:25

MOS Capacitor

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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.
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Capacitor With A Dielectric01:18

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Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
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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.
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Energy Stored in a Capacitor: Problem Solving01:26

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In 1749, Benjamin Franklin coined the word battery for a series of capacitors connected to store energy. Capacitors store electric potential energy that can be released over a short time. This property means capacitors have a wide range of applications.
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Recent Advances in Two-Dimensional MXene for Supercapacitor Applications: Progress, Challenges, and Perspectives.

Zambaga Otgonbayar1, Sunhye Yang2, Ick-Jun Kim2

  • 1Department of Advanced Materials Science & Engineering, Hanseo University, Seosan-si 356-706, Republic of Korea.

Nanomaterials (Basel, Switzerland)
|March 11, 2023
PubMed
Summary

MXene materials offer high conductivity and tunable properties for advanced energy storage. This review covers their synthesis, properties, and challenges in supercapacitor applications.

Keywords:
2D MXeneMXene-based electrodeelectrolytesupercapacitorsynthesis method

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • MXene, a class of 2D transition metal carbides and nitrides, exhibits unique properties like high conductivity and tunable surface chemistry.
  • Since their discovery, MXene compositions have expanded to include various structures like MnXn-1, solid solutions, and vacancy solids.

Purpose of the Study:

  • To summarize the current developments, successes, and challenges of using MXenes in supercapacitor applications.
  • To review synthesis approaches, compositional variations, and material design strategies for MXene-based energy storage.

Main Methods:

  • Comprehensive literature review of MXene synthesis and characterization for energy storage.
  • Analysis of electrochemical properties, electrode design, and performance in various electrolytes.
  • Discussion of MXene hybridization with other active materials.

Main Results:

  • MXenes demonstrate significant potential in supercapacitors due to their high capacitance and conductivity.
  • Various synthesis methods and compositional engineering strategies have been explored to optimize MXene performance.
  • Hybridization and tailored electrode architectures enhance energy storage capabilities.

Conclusions:

  • MXenes are promising materials for next-generation supercapacitors, offering tunable properties and high performance.
  • Further research is needed to address challenges in large-scale synthesis, stability, and electrode design for practical applications.
  • Future work should focus on optimizing MXene structures and exploring novel applications in energy storage devices.