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

Electrolysis03:00

Electrolysis

31.4K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
31.4K
Electrochemical Cells01:28

Electrochemical Cells

64
Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not...
64
Processes at Electrodes01:30

Processes at Electrodes

43
The electrode interacts with ions in the electrolyte solution at its interface. The rate of oxidation and reduction depends on the speed at which electrons can transfer through this interface. As ions attach to or leave the electrode surface, the electrode acquires a charge, and an electrical potential forms across the interface, making the process more difficult to reach equilibrium. The charge on the electrode affects the local ion concentrations in the solution, though thermal motion...
43
The Electrical Double Layer01:30

The Electrical Double Layer

102
In the region where two bulk phases meet, an intricate electric charge distribution arises due to charge transfer, ion adsorption, molecular orientation, and charge distortion. This complex distribution is commonly referred to as the electrical double layer.When a solid electrode interfaces with ions in an electrolyte solution, the speed of electron transfer dictates the rates of oxidation and reduction. The electrode acquires a charge through the escape of atoms into the solution as cations or...
102
Electrochemical Systems01:24

Electrochemical Systems

51
Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution,...
51
The Nernst Equation02:59

The Nernst Equation

48.4K
Nonstandard Reaction Conditions
The interconnection between standard cell potentials and various thermodynamic parameters such as the standard free energy change ΔG° and equilibrium constant K has been previously explored. For example, a redox reaction involving zinc(II) and tin(II) ions at 1 M concentration with Eºcell = +0.291 V and ΔG° = −56.2 kJ is spontaneous.
48.4K

You might also read

Related Articles

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

Sort by
Same author

Nonantiperiodic Nonlinear Electrophoresis of Colloidal Particles.

Analytical chemistry·2025
Same author

The influence of active agent motility on SIRS epidemiological dynamics.

Soft matter·2024
Same author

Self-Organized Patterns in Non-Reciprocal Active Droplet Systems.

Angewandte Chemie (International ed. in English)·2024
Same author

Diffusiophoretic Transport of Charged Colloids in Ionic Surfactant Gradients Entirely below versus Entirely above the Critical Micelle Concentration.

Langmuir : the ACS journal of surfaces and colloids·2024
Same author

A multiple-timing analysis of temporal ratcheting.

The European physical journal. E, Soft matter·2024
Same author

Nonequilibrium structure formation in electrohydrodynamic emulsions.

Soft matter·2023
Same journal

Erratum: Low-dimensional model for adaptive networks of spiking neurons [Phys. Rev. E 111, 014422 (2025)].

Physical review. E·2026
Same journal

Disentangling the effects of many-body forces on depletion interactions.

Physical review. E·2026
Same journal

Charge transport and mode transition in dual-energy electron beam diodes.

Physical review. E·2026
Same journal

Optimization of multisite reactions in complex compartmentalized media.

Physical review. E·2026
Same journal

Origin of geometric cohesion in nonconvex granular materials: Interplay between interdigitation and rotational constraints enhancing frictional stability.

Physical review. E·2026
Same journal

Interaction of walkers with a standing Faraday wave.

Physical review. E·2026
See all related articles

Related Experiment Video

Updated: Mar 15, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

9.5K

Discharging dynamics in an electrolytic cell.

Sarah E Feicht1, Alexandra E Frankel1, Aditya S Khair1

  • 1Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.

Physical Review. E
|August 31, 2016
PubMed
Summary
This summary is machine-generated.

We analyzed ion transport in electrolytic cells, revealing asymmetric charging and discharging currents at higher voltages. A reverse current peak emerges in strongly nonlinear regimes, offering insights into ion diffusion and concentration.

More Related Videos

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

39.2K
Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

22.4K

Related Experiment Videos

Last Updated: Mar 15, 2026

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions
08:41

Generation and Control of Electrohydrodynamic Flows in Aqueous Electrolyte Solutions

Published on: September 7, 2018

9.5K
Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
10:41

Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries

Published on: May 22, 2018

39.2K
Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells
12:28

Non-aqueous Electrode Processing and Construction of Lithium-ion Coin Cells

Published on: February 1, 2016

22.4K

Area of Science:

  • Electrochemistry
  • Ion Transport Phenomena
  • Nonlinear Dynamics

Background:

  • Electrolytic cells with blocking electrodes exhibit complex ion dynamics.
  • Experimental observations show current asymmetry during charging and discharging cycles.
  • The thermal voltage (VT) is a key parameter influencing ion behavior.

Purpose of the Study:

  • To analyze the dynamics of discharging in a binary symmetric electrolyte cell.
  • To investigate the origins of current asymmetry and the reverse peak phenomenon.
  • To model ion transport using Poisson-Nernst-Planck equations across different voltage regimes.

Main Methods:

  • Solving Poisson-Nernst-Planck equations using asymptotic and numerical techniques.
  • Analyzing ion transport in linear, weakly nonlinear, and strongly nonlinear regimes.
  • Characterizing current evolution across multiple timescales.

Main Results:

  • Linear regime: Antisymmetric currents but asymmetric potential and charge density profiles.
  • Weakly nonlinear regime: Nonlinear double-layer capacitance breaks current antisymmetry.
  • Strongly nonlinear regime: A reverse peak in discharging current due to salt adsorption and bulk depletion, evolving over three timescales.

Conclusions:

  • The reverse peak in discharging current is linked to ion diffusion from double layers to the bulk.
  • Reverse peak characteristics saturate at high voltages, enabling diffusivity and concentration determination.
  • Semi-analytic expressions are provided for experimental parameter extraction.