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

Metal-Semiconductor Junctions01:24

Metal-Semiconductor Junctions

437
The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The...
437
Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

2.4K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.4K
Oxidation and Reduction of Organic Molecules01:19

Oxidation and Reduction of Organic Molecules

7.1K
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...
7.1K
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide02:44

Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide

10.7K
Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
10.7K

You might also read

Related Articles

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

Sort by
Same author

Heteronuclear MOF Heterostructures Based on Identical Auxiliary-Ligand Bridging for Multi-Function-Integrated Photonic Devices.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Cascade Oxidation of Ethylene and Propylene over a Redox Heterometallic Cluster.

Journal of the American Chemical Society·2026
Same author

Novel Carborane Based Metal Organic Framework for Record Electronic Specialty Gas C<sub>2</sub>F<sub>6</sub> Purification via Molecular Sieving.

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

Comparative transcriptome and metabolome profiling uncovers tissue-specific mechanisms in potato flesh and skin.

Food chemistry·2026
Same author

Spatial ecology meets quality control: a GIS-integrated strategy for visualizing and managing microbial contamination in sterile pharmaceutical cleanrooms.

Microbiology spectrum·2026
Same author

Engineering CO<sub>2</sub> Pre-Activation in In-MOF for Enhancing its Electroreduction Activity.

Small (Weinheim an der Bergstrasse, Germany)·2026

Related Experiment Video

Updated: Aug 24, 2025

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
04:51

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange

Published on: June 23, 2023

3.2K

Self-Reconstructed Metal-Organic Framework Heterojunction for Switchable Oxygen Evolution Reaction.

Ling Zhang1, Jiaji Wang1, Ke Jiang2

  • 1State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, China.

Angewandte Chemie (International Ed. in English)
|October 24, 2022
PubMed
Summary

A novel metal-organic framework (MOF) heterojunction catalyst was developed for the oxygen evolution reaction (OER). This catalyst exhibits enhanced activity and durability due to self-reconstruction and optimized active sites.

Keywords:
Metal-Organic FrameworkOxygen Evolution ReactionSurface ReconstructionTopology and Morphology

More Related Videos

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

48.3K
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

7.8K

Related Experiment Videos

Last Updated: Aug 24, 2025

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange
04:51

Author Spotlight: Functionalizing Metal-Organic Frameworks: Advancements, Challenges, and the Power of Post-Synthetic Ligand Exchange

Published on: June 23, 2023

3.2K
Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

48.3K
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

7.8K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Designing metal-organic framework (MOF)-based catalysts for the oxygen evolution reaction (OER) is challenging due to limited intrinsic activity and instability under harsh conditions.
  • Understanding the evolution of MOFs under OER conditions is crucial for catalyst design.

Purpose of the Study:

  • To construct a stable, self-reconstructed MOF heterojunction with enhanced OER activity and durability.
  • To investigate the role of hydrogen bonds and built-in electric fields in MOF heterojunction performance.

Main Methods:

  • Fabrication of a MOF heterojunction using redox electrochemistry and a topology-guided strategy.
  • Electrochemical characterization of OER activity and durability.
  • Density functional theory (DFT) calculations to understand reaction mechanisms.

Main Results:

  • The MOF heterojunction demonstrated significantly improved OER activity (225 mV overpotential at 10 mA cm⁻²) compared to a fully reconstructed MOF (332 mV).
  • DFT calculations revealed that a built-in electric field in the heterojunction optimizes the adsorption/desorption of active Ni sites.
  • The catalyst exhibited superior durability, attributed to a protective NiOOH coating formed during operation.

Conclusions:

  • The developed MOF heterojunction offers a promising strategy for designing highly active and durable electrocatalysts for OER.
  • Self-reconstruction and intrinsic structural features play a key role in enhancing catalyst performance and stability.