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

Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

778
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...
778
Electrolysis03:00

Electrolysis

30.0K
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...
30.0K
Controlled-Potential Coulometry: Electrolytic Methods01:17

Controlled-Potential Coulometry: Electrolytic Methods

641
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...
641
Controlled-Current Coulometry: Overview01:27

Controlled-Current Coulometry: Overview

619
Controlled current coulometry, also known as amperostatic coulometry, is a technique used in electrochemical analysis to measure the quantity of a substance through the controlled passage of current. It involves the application of a constant current to an electrochemical cell containing the analyte of interest. As the current flows through the cell, the analyte undergoes a redox reaction at the electrode surface, resulting in a charge transfer. By monitoring the time required for a certain...
619
Coagulation01:06

Coagulation

1.2K
Colloidal solids are solid particles suspended in solution. They are usually negatively charged, attracting a compact primary layer of positively charged ions, which attract more counterions to form an electrical double layer. Electrostatic repulsion between the charged double layers prevents the particles from colliding, stabilizing the colloids. These solids are often undesirable because they can contain toxins that are difficult to remove. Coagulation is a technique that helps aggregate and...
1.2K
Ion Exchange01:17

Ion Exchange

1.1K
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...
1.1K

You might also read

Related Articles

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

Sort by
Same author

Two unusual C19-type diterpene alkaloids from the roots of <i>Aconitum sinomontanum</i>.

Natural product research·2026
Same author

A Study on a Method for Detecting Surface Defects in Optical Modules Based on Information Entropy Feature Extraction.

Entropy (Basel, Switzerland)·2026
Same author

Invasive versus non-invasive management in non-ST segment elevation myocardial infarction patients with pulmonary hypertension.

SAGE open medicine·2026
Same author

Stabilizing Ion Channels via Nonpolar Cross-Linking in Ion-Conductive Polymers for Robust CO<sub>2</sub>-to-Alcohol Conversion.

Angewandte Chemie (International ed. in English)·2026
Same author

Correction to "Light-Induced Transformation from Covalent to Supramolecular Polymer Networks".

ACS macro letters·2026
Same author

Targeting glutathione metabolism for tumor radiosensitization (Review).

International journal of molecular medicine·2026

Related Experiment Video

Updated: Jan 9, 2026

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

410

Cation Effect-Engineered Electrocatalytic Interfaces Boost Pure-Water CO2 Electrolysis with Optimized Ion Dynamics.

Haonan Xu1, Yanjie Fang1, Feiqing Sun1

  • 1Department of Chemistry, Zhejiang University, Hangzhou, 310058, China.

Angewandte Chemie (International Ed. in English)
|December 1, 2025
PubMed
Summary

Engineered electrocatalytic interfaces using a double-layer membrane improve electrochemical carbon dioxide reduction in pure water. This advancement enhances efficiency and scalability for sustainable fuel synthesis via CO2 electrolysis.

Keywords:
CO2 reductionCation effectElectrocatalytic interfaceIon transportPure‐H2O electrolyzer

More Related Videos

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

18.9K
Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

13.3K

Related Experiment Videos

Last Updated: Jan 9, 2026

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

410
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

18.9K
Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

13.3K

Area of Science:

  • Electrochemistry
  • Materials Science
  • Chemical Engineering

Background:

  • Electrochemical CO2 reduction in zero-gap electrolyzers using pure water offers a sustainable route for fuel synthesis, but is hindered by inefficient ion transport.
  • Salt precipitation issues in traditional electrolyzers limit stability and scalability.

Purpose of the Study:

  • To overcome ion transport limitations in pure water CO2 electroreduction.
  • To enhance the efficiency and stability of CO2 electrolysis through engineered interfaces.

Main Methods:

  • Development of a double-layer membrane (DLM) by integrating a quaternary ammonia poly(N-methyl-piperidine-co-p-terphenyl) (QAPPT) structural layer with a cation-engineered poly(N-methyl-piperidine-co-biphenyl) (QAPPB) overlayer.
  • Engineering cation effects at the electrocatalytic interface to optimize hydroxide ion dynamics.
  • Testing the DLM in a zero-gap electrolyzer under pure water conditions.

Main Results:

  • Achieved 93% Faradaic efficiency for CO production at 500 mA cm-2 in pure water.
  • Demonstrated stable operation for over 100 hours.
  • Scaled the system to a 100 cm2 electrolyzer, achieving a CO production rate of 344 mL min-1 at 50 A.

Conclusions:

  • The cation effect-engineered electrocatalytic interface effectively optimizes hydroxide ion transport for efficient pure-water CO2 electrolysis.
  • The developed DLM architecture significantly enhances CO2 reduction selectivity and system-level robustness.
  • This work provides a pathway for scalable and sustainable CO2 utilization through advanced materials design.