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

You might also read

Related Articles

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

Sort by
Same author

Unveiling a Hidden Conversion Pathway in CoSe<sub>2</sub> Anodes via Rationally Designed CNT-Interwoven Hollow Carbon Microclusters for High-Performance Potassium-Ion Batteries.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

3D-Mixer-Assisted High-Entropy Doping of LiNiO<sub>2</sub> for Co-Free Ni-Rich Cathodes in Lithium-Ion Batteries.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Active nitrogen mediated selective ruthenium migration on ceria for high pressure ammonia decomposition.

Nature communications·2026
Same author

Spherical Sn Deposition Enabled by Lignosulfonate for Stable Aqueous Sn Metal Batteries.

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

Insights into Native Single-Atom Electrocatalyst Site Structures.

ACS nano·2026
Same author

Constructing a Synergistic Triple Layer Interfacial Design for Dendrite-Free and High-Performance Lithium Metal Batteries.

ACS applied materials & interfaces·2026

Related Experiment Video

Updated: May 5, 2026

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

3.4K

Edge-exposed MoS2 nano-assembled structures as efficient electrocatalysts for hydrogen evolution reaction.

Dong Young Chung1, Seung-Keun Park, Young-Hoon Chung

  • 1Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 151-742, Republic of Korea.

Nanoscale
|December 7, 2013
PubMed
Summary

Edge-exposed molybdenum disulfide (MoS2) nano-structures demonstrate enhanced hydrogen evolution reaction (HER) activity and stability. Assembled spheres maximize sulfur edge sites for superior electrocatalysis.

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

10.6K
Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

1.5K

Related Experiment Videos

Last Updated: May 5, 2026

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

3.4K
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

10.6K
Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

1.5K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • The hydrogen evolution reaction (HER) is crucial for clean energy production.
  • Developing efficient and stable electrocatalysts is key to advancing HER technologies.
  • Molybdenum disulfide (MoS2) shows promise but requires optimization for enhanced activity.

Purpose of the Study:

  • To design and synthesize edge-exposed MoS2 nano-assembled structures.
  • To investigate the relationship between MoS2 morphology and HER performance.
  • To achieve high electrocatalytic activity and long-term stability for HER.

Main Methods:

  • Fabrication of MoS2 nano-assembled spheres from small-size fragments.
  • Characterization of sulfur edge sites using Raman spectroscopy.
  • Analysis of MoS2 structure and coordination using EXAFS (Extended X-ray Absorption Fine Structure).
  • Electrocatalytic testing for hydrogen evolution reaction activity and stability.

Main Results:

  • Nano-assembled MoS2 spheres exhibit a high number of exposed sulfur edge sites.
  • Raman spectroscopy and EXAFS confirmed the abundance of active edge sites.
  • The assembled spheres demonstrated high electrocatalytic HER activity.
  • The nano-assembled structures showed excellent long-term stability under reaction conditions.

Conclusions:

  • Controlling MoS2 morphology into nano-assembled spheres significantly enhances HER performance.
  • Maximized sulfur edge sites are critical for high activity and stability.
  • Edge-exposed MoS2 nano-assemblies represent a promising pathway for efficient hydrogen production.