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

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

3.3K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.3K
Redox Reactions01:24

Redox Reactions

55.6K
Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
55.6K
Redox Equilibria: Overview01:23

Redox Equilibria: Overview

560
A reduction-oxidation reaction is commonly called a redox reaction. In a redox reaction, electrons are transferred from one species to another rather than being shared between or among atoms. The reducing agent or reductant is the species that loses electrons and gets oxidized in the process. The species that gains electrons and gets reduced in the process is the oxidizing agent or oxidant. Redox reactions are represented as two separate equations called half-reactions, where one equation...
560
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

12.0K
Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
12.0K
Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

272
Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
272
Oxidation and Reduction of Organic Molecules01:19

Oxidation and Reduction of Organic Molecules

6.4K
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...
6.4K

You might also read

Related Articles

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

Sort by
Same author

From H<sub>2</sub>O<sub>2</sub> to OH: A First-Principles Investigation of the Heterogeneous Fenton-Like Reaction.

ACS omega·2026
Same author

Graph-Based Generation and Reduction of Complex Chemical Reaction Networks.

Journal of chemical information and modeling·2026
Same author

Crystal structures of fisetin dihydrate and luteolin monohydrate: crystallization from ethanol-water mixtures.

Acta crystallographica. Section E, Crystallographic communications·2026
Same author

Thionyl Chloride-Mediated Synthesis of Erlenmeyer Azlactones from <i>N</i>-Acylated α-Amino Acids.

The Journal of organic chemistry·2026
Same author

Iron Catalyzed Aryl-Aryl Kumada Cross-Coupling: A Mechanistic and Computational Investigation.

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

The Sol-Gel Metal-Oxide Skeleton Affects the Catalytic Properties of In Situ Formed Metal Nanoparticles.

ACS omega·2026

Related Experiment Video

Updated: Jun 24, 2025

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
10:01

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase

Published on: December 4, 2017

12.2K

Redox Active Ligands for Catalyzing the Hydrogen Evolution Reaction.

Sachin Kumar1, Shachar Fite1, Erika Remigi2

  • 1Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa, 320003, Israel.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|June 13, 2024
PubMed
Summary
This summary is machine-generated.

This study explored boron subphthalocyanines and antimony corrole complexes as electrocatalysts for hydrogen production. Researchers found that specific sites on these molecules, namely meso-C and peripheral N atoms, are key for proton binding during the reaction.

Keywords:
Antimony corroleBoron subphthalocyaninesCatalysisHydrogen evolution reaction (HER)Reaction mechanism

More Related Videos

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
10:21

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

8.4K
A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

19.6K

Related Experiment Videos

Last Updated: Jun 24, 2025

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase
10:01

Protein Film Infrared Electrochemistry Demonstrated for Study of H2 Oxidation by a [NiFe] Hydrogenase

Published on: December 4, 2017

12.2K
Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
10:21

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

8.4K
A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

19.6K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Proton reduction to hydrogen is a critical process in renewable energy.
  • Developing efficient electrocatalysts is essential for sustainable hydrogen production.
  • Boron subphthalocyanines and antimony corroles are novel molecular structures with potential catalytic activity.

Purpose of the Study:

  • To investigate the electrocatalytic activity of boron subphthalocyanines and antimony corrole complexes for proton reduction.
  • To identify the active sites and mechanisms involved in the electrocatalytic process.
  • To understand the role of ligand structure and electronic properties in catalytic performance.

Main Methods:

  • Electrochemical analysis of boron subphthalocyanines and antimony corrole complexes.
  • Computational modeling (e.g., DFT) to study redox events and proton binding.
  • Synthesis and characterization of the investigated molecular complexes.

Main Results:

  • All investigated redox events were found to be ligand-centered.
  • Meso-carbon atoms of corroles and peripheral nitrogen atoms of subphthalocyanines were identified as preferred proton-binding sites.
  • The size and electron-richness of corrole ligands influenced catalytic performance.

Conclusions:

  • Boron subphthalocyanines and antimony corroles show promise as electrocatalysts for hydrogen evolution.
  • Understanding proton-binding sites is crucial for designing more efficient catalysts.
  • Ligand design plays a significant role in tuning the electrocatalytic activity of these complexes.