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

Ion Exchange01:17

Ion Exchange

686
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...
686
MOS Capacitor01:25

MOS Capacitor

1.0K
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...
1.0K
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

868
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...
868
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

848
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at...
848
Controlled-Potential Coulometry: Electrolytic Methods01:17

Controlled-Potential Coulometry: Electrolytic Methods

329
Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential is precisely regulated using a potentiostat. Platinum working electrodes are utilized for positive potentials, while mercury pool electrodes are favored for extremely negative potentials. The platinum counter electrode is separated from the analyte using a membrane or salt bridge to avoid interference in the analysis.
The chosen potential...
329
Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

5.2K
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...
5.2K

You might also read

Related Articles

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

Sort by
Same author

Pushing the limit of layered transition metal oxides with heterolattice oxygen-mediated redox for capacitive deionization.

Nature communications·2025
Same author

Electrochemical Conversion of CO<sub>2</sub> into Formate Boosted by In Situ Reconstruction of Bi-MOF to Bi<sub>2</sub>O<sub>2</sub>CO<sub>3</sub> Ultrathin Nanosheets.

ACS applied materials & interfaces·2024
Same author

The electrosorption behavior of shuttle-like FeP: performance and mechanism.

RSC advances·2023
Same author

Substrate-Mediated Borophane Polymorphs through Hydrogenation of Two-Dimensional Boron Sheets.

The journal of physical chemistry letters·2022
Same author

Porous engineering of CoS<sub>2</sub>/N-doped carbon polyhedra anode for durable lithium-ion battery.

Nanotechnology·2022
Same author

<i>In situ</i> preparation of an anatase/rutile-TiO<sub>2</sub>/Ti<sub>3</sub>C<sub>2</sub>T <sub></sub> hybrid electrode for durable sodium ion batteries.

RSC advances·2022
Same journal

Surface-Engineered Filters for Wettability-Driven Collection of Airborne Fungal Spores.

Global challenges (Hoboken, NJ)·2026
Same journal

Don't Forget the Past! Understanding and Communicating Earth's History is Important for a Sustainable Future.

Global challenges (Hoboken, NJ)·2026
Same journal

Dual Saturation in Soil Carbon Sequestration: Biophysical Limits and the Operational Capacity of Farmers.

Global challenges (Hoboken, NJ)·2026
Same journal

Low-Dose H<sub>2</sub>O<sub>2</sub> Priming Improves Performance Under Simulated Marine Heatwave Conditions in a Coastal Bivalve.

Global challenges (Hoboken, NJ)·2026
Same journal

Identifying Mitigation Pathways for Low-Carbon Strawberry Production under Mediterranean Conditions: A Life Cycle Assessment.

Global challenges (Hoboken, NJ)·2026
Same journal

Techno-Economic Assessment of a Hydrogen-Assisted Hybrid Renewable Microgrid with Fuel Cells for Off-Grid Electrification.

Global challenges (Hoboken, NJ)·2026
See all related articles

Related Experiment Video

Updated: Oct 4, 2025

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
08:34

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration

Published on: December 5, 2019

5.6K

Highly Efficient Capacitive Deionization Enabled by NiCo4MnO8.5 Electrodes.

Wei Wang1, Zhenzhen Liu1, Zehao Zhang1

  • 1Ningxia Key Laboratory of Photovoltaic Materials Ningxia University Yinchuan Ningxia 750021 China.

Global Challenges (Hoboken, NJ)
|February 10, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel cubic ternary metal oxide, Ni-Co-Mn-O, for capacitive deionization (CDI). This material significantly enhances salt removal capacity in water treatment applications.

Keywords:
capacitive deionizationdesalinationternary metal oxides

More Related Videos

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

8.6K
Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

11.0K

Related Experiment Videos

Last Updated: Oct 4, 2025

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration
08:34

A Dual-Functional Electroactive Filter Towards Simultaneously SbIII Oxidation and Sequestration

Published on: December 5, 2019

5.6K
Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

8.6K
Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

11.0K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Environmental Science

Background:

  • Freshwater scarcity is a critical global challenge.
  • Capacitive deionization (CDI) offers an efficient, low-cost solution for water desalination.
  • Developing advanced electrode materials is key to improving CDI performance.

Purpose of the Study:

  • To synthesize and characterize cubic ternary metal oxides NiCo4MnO8.5 (Ni-Co-Mn-O) for enhanced symmetrical CDI.
  • To investigate the electrochemical properties and desalination performance of the synthesized material.
  • To evaluate the long-term stability and capacitance retention of Ni-Co-Mn-O electrodes.

Main Methods:

  • Facile hydrothermal synthesis of Ni-Co-Mn-O cubic ternary metal oxides.
  • Electrochemical measurements including internal resistance and ion diffusion impedance analysis.
  • Capacitive deionization experiments varying applied voltage and assessing salt removal capacity and charge efficiency.
  • Cyclic voltammetry and galvanostatic charge-discharge cycling to evaluate long-term stability.

Main Results:

  • Ni-Co-Mn-O exhibits low internal resistance and ion diffusion impedance.
  • Salt removal capacity increased from 26.84 to 65.61 mg g-1 with voltage increase from 0.8 to 1.4 V in 1.0 × 10-2 m NaCl.
  • Charge efficiency stabilized around 80%, with 64.27% capacitance retention after 20 cycles.
  • Degradation attributed to redox irreversibility of Co/Mn and Ni ion release.

Conclusions:

  • Ni-Co-Mn-O is a promising electrode material for efficient capacitive deionization.
  • Optimizing operating voltage enhances desalination performance.
  • Further research is needed to improve the long-term stability of Ni-Co-Mn-O for practical applications.