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

Oxidation and Reduction of Organic Molecules01:19

Oxidation and Reduction of Organic Molecules

6.1K
Energy production within a cell involves many coordinated chemical pathways. Most of these pathways are combinations of oxidation and reduction reactions, which occur at the same time. An oxidation reaction strips an electron from an atom in a compound, and the addition of this electron to another compound is a reduction reaction. Because oxidation and reduction usually occur together, these pairs of reactions are called redox reactions.
The removal of an electron from a molecule, results in a...
6.1K

You might also read

Related Articles

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

Sort by
Same author

Electrodepositing Iron-Cobalt-Nickel-Based (Oxy)Hydroxides to Reveal the Crucial Iron-Species for Efficient Oxygen Evolution.

ACS applied materials & interfaces·2026
Same author

Tuning Asymmetric Isomers in One-Dimensional Covalent Organic Frameworks to Enhance Oxygen Reduction Activity.

Angewandte Chemie (International ed. in English)·2025
Same author

Triple Synergistic Modulation via Sn Doping in Tetrahedrites: Electronic Structure, DOS, and Scattering Engineering for a High Thermoelectric Performance.

ACS applied materials & interfaces·2025
Same author

Effect of 1-DNJ on Oxidative Stress-Induced Apoptosis in Porcine Ovarian GCs Through Modulation of the PERK-ATF4/MFN2 Signaling Pathway.

Antioxidants (Basel, Switzerland)·2025
Same author

Large-sized aerobic granular biofilm: stable biotechnology to improve nitrogen removal and reduce sludge yield.

Bioresource technology·2025
Same author

Effects of acceptance and commitment therapy plus exercise for older adults with chronic low back pain: A preliminary cluster randomized controlled trial with qualitative interviews.

The journal of pain·2025

Related Experiment Video

Updated: Jun 4, 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

18.1K

Modulating Oxygen Reduction Activity in Chalcogenophene-Incorporated Organic Electrocatalysts through Main-Group

Shuqi Cheng1, Binbin Wang1, Hongni Chen1

  • 1State Key Laboratory of Bio-fibers and Eco-textiles, Collaborative Innovation Center of Shandong Marine Biobased Fibers and Ecological Textiles, Institute of Marine Biobased Materials, College of Materials Science and Engineering, Qingdao University, Qingdao, 266071, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)
|December 23, 2024
PubMed
Summary

Introducing selenium into organic small molecules (OSMs) boosts metal-free cathode catalyst performance for fuel cells. This approach enhances oxygen reduction reaction activity and stability.

Keywords:
active sitecharge distributionmetal‐freeorganic moleculeoxygen reaction

More Related Videos

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.6K
Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
05:47

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Published on: August 7, 2018

7.6K

Related Experiment Videos

Last Updated: Jun 4, 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

18.1K
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.6K
Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
05:47

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Published on: August 7, 2018

7.6K

Area of Science:

  • Electrochemistry
  • Materials Science
  • Catalysis

Background:

  • Organic small molecules (OSMs) are vital for fuel cell cathode catalysts.
  • Heteroatom doping can improve metal-free carbon catalysts, but structure-activity relationships are unclear.
  • A consistent molecular skeleton is needed to study doping effects.

Purpose of the Study:

  • To investigate how introducing different chalcogens into the same OSM skeleton affects catalytic activity.
  • To develop high-performance, metal-free electrocatalysts for fuel cells.
  • To elucidate the mechanism of enhanced oxygen reduction reaction (ORR) activity.

Main Methods:

  • Main-group engineering to introduce chalcogens (e.g., Se) into OSMs.
  • Fabrication of catalysts using OSMs and carbonized calcium alginate.
  • Electrochemical characterization of ORR performance (half-wave potential, stability).
  • Density Functional Theory (DFT) calculations to understand reaction mechanisms.

Main Results:

  • Se-containing OSM (OSM-Se) with carbonized calcium alginate showed a quasi-four-electron ORR pathway.
  • Achieved a superior half-wave potential (E1/2) of 0.73 V and excellent electrochemical stability.
  • DFT calculations confirmed enhanced oxygen adsorption/dissociation and reduced ORR barrier by Se.

Conclusions:

  • Modulating charge distribution via chalcogen doping in OSMs is an effective strategy for metal-free electrocatalysts.
  • Se-containing OSMs show significant promise for efficient and stable oxygen reduction reactions in fuel cells.
  • This work provides a simple yet powerful method for designing advanced OSM-based electrocatalysts.