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

4.0K
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...
4.0K
Catalysis02:50

Catalysis

32.3K
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.
32.3K
Heterogeneous Catalysis01:22

Heterogeneous Catalysis

111
Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
111
Formation of Complex Ions03:45

Formation of Complex Ions

26.8K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
26.8K
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

15.0K
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...
15.0K

You might also read

Related Articles

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

Sort by
Same author

Switching the reactive species from sulfate radical (SO<sub>4</sub>˙<sup>-</sup>) to ozonide (O<sub>3</sub>˙<sup>-</sup>) in non-deoxygenated and alkaline peroxydisulfate (S<sub>2</sub>O<sub>8</sub><sup>2-</sup>) solution under ultraviolet exposure.

Physical chemistry chemical physics : PCCP·2026
Same author

Structural Reconstruction and Electronic Microenvironment of Active FeCoNiOOH Support Optimized by Single Mo Atoms for Lattice Oxygen Evolution.

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

Dual-functional MXene-integrated GelMA microspheres for synergistic chemo/photothermal therapy: In vitro 2D/3D multi-cancer evaluation and in vivo breast cancer validation.

International journal of biological macromolecules·2026
Same author

Lysophosphatidic acid-induced upregulation of exosomal miR-221-3p from corneal stromal cells promotes corneal endothelial healing.

Biomaterials advances·2026
Same author

Single-Carbon Bridged Pentacene Dimers Enable Efficient Singlet Fission and Quintet State Stabilization.

Journal of the American Chemical Society·2026
Same author

Magneto-voltaic activity of single-atom iron on reduced graphene oxide for magneto-catalytic conversion of H<sub>2</sub>O<sub>2</sub> into O<sub>2</sub>.

Chemical science·2025

Related Experiment Video

Updated: Apr 1, 2026

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

12.1K

Development of a Dinitrosyl Iron Complex Molecular Catalyst into a Hydrogen Evolution Cathode.

Tzung-Wen Chiou1, Tsai-Te Lu2, Ying-Hao Wu3

  • 1Department of Chemistry, National Tsing Hua University, No. 101, Section 2, Guangfu Rd., Hsinchu, 30013 (Taiwan). d9623817@oz.nthu.edu.tw.

Angewandte Chemie (International Ed. in English)
|October 7, 2015
PubMed
Summary

A novel iron complex transforms into a stable cathode for efficient water electrocatalysis, producing hydrogen gas. This breakthrough enables long-lasting, recyclable catalysts for sustainable hydrogen production.

Keywords:
electrocatalysishydrogenironnitric oxidewater reduction

More Related Videos

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

4.4K
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

19.4K

Related Experiment Videos

Last Updated: Apr 1, 2026

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

12.1K
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

Published on: December 6, 2021

4.4K
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

19.4K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Developing efficient, stable, and recyclable electrocatalysts for water reduction, particularly in neutral and basic media, is crucial for sustainable hydrogen production.
  • Existing homogeneous/heterogeneous catalysts based on Fe, Co, Ni, Cu, W, and Mo complexes face challenges in stability and aqueous compatibility.

Purpose of the Study:

  • To demonstrate the evolution of a de novo designed dinitrosyl iron complex (DNIC-PMDTA) from a molecular catalyst to a solid-state hydrogen evolution cathode.
  • To investigate the electronic and structural requirements for each step of the catalytic cycle in water electroreduction.
  • To assess the stability and efficiency of the developed catalyst in neutral and basic media.

Main Methods:

  • Design and synthesis of the dinitrosyl iron complex DNIC-PMDTA.
  • Fabrication of a solid-state cathode by depositing DNIC-PMDTA onto an electrode.
  • Electrocatalytic testing of the cathode for water reduction in neutral and basic aqueous media.
  • Long-term stability testing of the electrode.

Main Results:

  • The DNIC-PMDTA complex successfully evolved into a functional solid-state cathode for electrocatalytic water reduction.
  • The developed cathode demonstrated electrocatalytic activity in neutral and basic media.
  • Exceptional longevity of the electrode was observed, lasting 139 hours.
  • The efficiency of hydrogen production is linked to the molecular precursor [(L)Fe(NO)2].

Conclusions:

  • The study demonstrates a viable pathway to create stable, solid-state electrocatalysts for hydrogen evolution from water using iron-nitrosyl complexes.
  • This work paves the way for systematic studies on assembling [Fe(NO)2] motifs into current collectors for mass hydrogen production.
  • The findings highlight the potential for tailoring catalyst efficiency through molecular precursor design.