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

Thermal and Photochemical Electrocyclic Reactions: Overview01:26

Thermal and Photochemical Electrocyclic Reactions: Overview

2.3K
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.
2.3K

You might also read

Related Articles

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

Sort by
Same author

Quantum Feature Engineering for Electronic Profiling of Biomolecules via Density of States: Beyond Transmission Fingerprints.

Analytical chemistry·2026
Same author

Harnessing Naphthalimide Scaffolds for Sustainable CO<sub>2</sub> Utilization: A Metal-, Halide-, and Solvent-Free Photocatalytic CO<sub>2</sub> Cycloaddition via Sequential Two-Photon Activation.

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

Stabilization of Ligand-Free Small Gold Nanocluster Within a Metal-Organic Framework for Enhanced Hydrogen Evolution and Horseradish Peroxidase-Mimicking Catalysis in Aqueous Media.

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

Structural Insights into the Cyclic Peptide Antibiotic Thiostrepton via NMR Spectroscopy.

The journal of physical chemistry. A·2026
Same author

Monitoring Dehydration-Driven Motional Dynamics in Cortical Bone by Employing Solid-State NMR Methodologies.

The journal of physical chemistry. B·2026
Same author

Mpi-driven N-glycosylation orchestrates mucin O-glycosylation and intestinal homeostasis.

Nature communications·2026

Related Experiment Video

Updated: Jul 5, 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

18.2K

Functionality Modulation Toward Thianthrene-based Metal-Free Electrocatalysts for Water Splitting.

Arnab Sadhukhan1,2, Arun Karmakar3, Kalipada Koner1,2

  • 1Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohanpur, Kolkata, 741246, India.

Advanced Materials (Deerfield Beach, Fla.)
|January 21, 2024
PubMed
Summary

Researchers developed novel metal-free porous organic polymers (POPs) for efficient hydrogen and oxygen evolution reactions (HER and OER). The new thianthrene-based POPs demonstrate superior bifunctional electrocatalytic activity and long-term stability.

Keywords:
bi‐functional electrocatalystshollow‐spherical morphologiesmetal‐freesp2 C═C linkagethianthrenewater splitting

More Related Videos

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

11.5K
Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
12:47

Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition

Published on: May 2, 2014

21.8K

Related Experiment Videos

Last Updated: Jul 5, 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

18.2K
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

11.5K
Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
12:47

Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition

Published on: May 2, 2014

21.8K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Developing metal-free bifunctional electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial but challenging.
  • Porous organic polymers (POPs) offer tunable structures for electrocatalytic applications.
  • Precise control over active sites is key to enhancing electrocatalyst performance.

Purpose of the Study:

  • To design and synthesize novel thianthrene-based porous organic polymers (POPs) for bifunctional HER and OER.
  • To systematically investigate the effects of structural modifications on electrocatalytic activity.
  • To achieve high performance and stability in metal-free bifunctional electrocatalysts.

Main Methods:

  • Synthesis of sp2 C═C bonded POPs with hollow spherical morphologies using thianthrene building units.
  • Electrocatalytic performance evaluation for HER and OER in acidic and alkaline media.
  • Structural characterization using techniques like FT-IR and XPS to understand structure-activity relationships and durability.

Main Results:

  • The synthesized thianthrene-based POPs exhibited excellent bifunctional electrocatalytic activity for both HER and OER.
  • The most efficient catalyst, THT-PyDAN, achieved a current density of 10 mA cm─2 at low overpotentials (≈65 mV for HER, ≈283 mV for OER).
  • THT-PyDAN demonstrated superior performance compared to existing metal-free bifunctional electrocatalysts and maintained stability over 36 hours of testing.

Conclusions:

  • Thianthrene-based POPs are promising metal-free bifunctional electrocatalysts for HER and OER.
  • Structural modulation, including heteroatom incorporation and linker length, significantly impacts electrocatalytic efficiency.
  • The developed POPs offer a stable and highly active alternative for sustainable energy applications.