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

Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

587
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...
587
Electrolysis03:00

Electrolysis

26.4K
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...
26.4K
Electrodeposition01:08

Electrodeposition

638
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
638
Controlled-Potential Coulometry: Electrolytic Methods01:17

Controlled-Potential Coulometry: Electrolytic Methods

174
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...
174
Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

251
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...
251
Catalysis02:50

Catalysis

27.0K
The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
27.0K

You might also read

Related Articles

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

Sort by
Same author

π-Extended Salphen Scaffolds Enable CO<sub>2</sub> Electroreduction and Singlet Oxygen Generation.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Electrochemical C-N Bond Formation from CO<sub>2</sub> and Nitrate Using Molecular Catalysis.

Journal of the American Chemical Society·2026
Same author

Molecular Copper Bipyridine Complex as a Catalyst for Electrochemical Nitrate Reduction.

Inorganic chemistry·2026
Same author

Pulsed electrosynthesis orthogonally optimizes C‒N coupling and hydrogenation for amine production with a molecular catalyst.

Nature communications·2026
Same author

Spatiotemporal Matching of Intermediates Governs Selective Electrochemical C-N Coupling.

Journal of the American Chemical Society·2026
Same author

Partial-coverage assembly of graphdiyne-derived fragment-protected Cu(I) clusters generates an ordered single-metal site catalyst.

National science review·2026

Related Experiment Video

Updated: Jul 8, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.2K

Electrocatalysis with molecules and molecular assemblies within gas diffusion electrodes.

Hossein Bemana1, Morgan McKee1, Nikolay Kornienko1,2

  • 1Department of Chemistry, Université de Montréal 1375 Avenue Thérèse-Lavoie-Roux Montréal QC H2V 0B3 Canada nkornien@uni-bonn.de.

Chemical Science
|December 11, 2023
PubMed
Summary

Molecular catalysts in gas-diffusion electrodes (GDEs) are advancing electrocatalysis. This perspective reviews molecular catalyst-GDE systems, identifies knowledge gaps, and proposes future research directions for improved catalyst design and industrial viability.

More Related Videos

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.5K
On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
12:12

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

22.1K

Related Experiment Videos

Last Updated: Jul 8, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.2K
Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.5K
On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
12:12

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

22.1K

Area of Science:

  • Electrocatalysis
  • Materials Science
  • Chemical Engineering

Background:

  • Molecular catalysts offer tunable active sites for electrocatalysis research.
  • Traditional setups face limitations with gaseous reactants and industrial scalability.
  • Gas-diffusion electrodes (GDEs) are emerging for direct gas-phase reactant delivery.

Purpose of the Study:

  • To review molecular catalyst-embedded GDE systems in electrocatalysis.
  • To identify current knowledge gaps and performance limitations.
  • To propose strategies and future research avenues for molecule-based GDE platforms.

Main Methods:

  • Literature review of molecular catalyst-GDE systems.
  • Analysis of structure-activity relationships in electrocatalysis.
  • Identification of challenges in current GDE methodologies.

Main Results:

  • Molecular catalysts integrated into GDEs enable direct gas-phase reactant access.
  • These systems show promise for achieving industrially relevant current densities.
  • Significant progress has been made in understanding molecular catalyst behavior in GDEs.

Conclusions:

  • Molecule-based GDEs represent a promising platform for advancing electrocatalysis.
  • Further research is needed to close knowledge gaps and enhance performance.
  • This approach can accelerate the design of improved catalysts for various applications.