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Related Concept Videos

Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

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Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
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Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current...
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The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
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When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.
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Recent Advanced Applications of Ionic Liquid for Future Iontronics.

Shimpei Ono1

  • 1Energy Transformation Research Laboratory, Central Research Institute of Electric Power Industry, 2-6-1 Nagasaka, Yokosuka, Kanagawa, 240-0196, Japan.

Chemical Record (New York, N.Y.)
|April 26, 2023
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Summary

Electric double layers (EDLs) enable future iontronics devices by acting as nanogap capacitors. This research explores advanced iontronics applications and energy harvesters using ion-based electrets for low-power electronics.

Keywords:
Electric double layerElectric double layer electretField effect transistorIonic liquidVibrational energy harvester

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanoscience

Background:

  • Electric double layers (EDLs) are crucial for novel electronic devices.
  • EDLs function as nanogap capacitors, enabling high charge carrier density.
  • Iontronics devices leverage EDL properties for next-generation electronics.

Purpose of the Study:

  • To review recent advancements in iontronics devices.
  • To explore energy harvesting applications using ion-based electrets.
  • To outline future research directions in iontronics.

Main Methods:

  • Review of recent literature on iontronics and EDL phenomena.
  • Analysis of ion motion control for electret formation.
  • Discussion of energy harvesting principles in ion-based systems.

Main Results:

  • EDLs facilitate low-power electronic device operation.
  • Controlling ion motion allows for the creation of semi-permanent electrets.
  • Advanced iontronics applications and energy harvesters are emerging.

Conclusions:

  • Iontronics devices utilizing EDLs represent a significant advancement in electronics.
  • Ion-based electrets offer potential for innovative energy harvesting solutions.
  • The field of iontronics is poised for substantial future growth and development.