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

3.8K
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...
3.8K
Catalysis02:50

Catalysis

29.9K
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.
29.9K
Batteries and Fuel Cells03:12

Batteries and Fuel Cells

30.6K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
30.6K

You might also read

Related Articles

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

Sort by
Same author

Interlayer Decoupling Growth for Atomically Thin Hybrid Perovskite Ferroelectrics with Giant Rashba Splitting Energy.

Journal of the American Chemical Society·2026
Same author

Robust Polarized Fields Generated by Organic-Inorganic Hybrid Perovskite Ferroelectrics Crystallization for Boosting Hydrogen Production Activity.

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

A Top-Down Polymer Collaborative Manufacturing of Perovskite Single Crystal Film Patterns.

ACS nano·2025
Same author

Ultrablack films with mechanical stability and weather resistance prepared by ion-source-assisted deposition.

Applied optics·2025
Same author

Polymer-linked growth wafer-sized Ruddlesden-Popper perovskite single-crystal films.

Nanotechnology·2025
Same author

Recyclable Molecular Ferroelectrics to Harvest Mechanical Energy for Sustained Hydrogen Generation.

Journal of the American Chemical Society·2025
Same journal

AFM-Modified Graphene Field-Effect Transistor for Sensitive Detection of Cardiac Troponin I.

Nanotechnology·2026
Same journal

Ultra-Sensitive UV Photodetectors Enabled by Built-in Electric Fields in Hierarchical NP-Type Porous Silicon.

Nanotechnology·2026
Same journal

Effect of sintering temperature on structural, microstructural and magnetic properties of La<sub>0.8</sub>Sr<sub>0.2</sub>MnO<sub>3</sub>: Evolution of faceting and terrace like morphology.

Nanotechnology·2026
Same journal

Engineered V2C MXene Anchored Cu Nanoparticles for Selective Nitrate/Nitrite Sensing and Magneto-Electrocatalytic Hydrogen Evolution Reaction.

Nanotechnology·2026
Same journal

Quantitative Mechanism Separation of Single-Event Transients in Nanosheet Transistors via TCAD Simulation.

Nanotechnology·2026
Same journal

Antibacterial, mechanical and curing properties of PMMA bone cement loaded with copper nanoparticles.

Nanotechnology·2026
See all related articles

Related Experiment Video

Updated: Jan 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

11.8K

Amorphous RuS2 electrocatalyst with optimized active sites for hydrogen evolution.

Yongji Xia1, Wenqi Wu2, Hao Wang2,3

  • 1School of New Energy Science and Engineering, Xinyu University, Xinyu 338004, People's Republic of China.

Nanotechnology
|December 18, 2019
PubMed
Summary
This summary is machine-generated.

Amorphous ruthenium sulfide (A-RuS2) demonstrates superior performance as a hydrogen evolution reaction (HER) electrocatalyst compared to its crystalline forms. This novel amorphous material offers enhanced activity and more active sites for efficient hydrogen production.

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

4.1K
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

8.8K

Related Experiment Videos

Last Updated: Jan 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

11.8K
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

4.1K
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

8.8K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Transition metal chalcogenides are key materials for electrocatalysis.
  • Hydrogen evolution reaction (HER) is crucial for clean energy production.
  • Developing efficient HER electrocatalysts is an ongoing research focus.

Purpose of the Study:

  • To synthesize and evaluate amorphous ruthenium sulfide (A-RuS2) as an electrocatalyst for HER.
  • To compare the HER performance of amorphous RuS2 with its crystalline counterparts.
  • To elucidate the reasons behind the enhanced catalytic activity of amorphous RuS2.

Main Methods:

  • Synthesis of amorphous ruthenium sulfide (A-RuS2).
  • Electrochemical characterization including overpotential and Tafel slope measurements.
  • Comparative analysis of amorphous and crystalline RuS2 catalytic activity.

Main Results:

  • Amorphous RuS2 was successfully synthesized and exhibited efficient HER electrocatalytic activity.
  • The A-RuS2 catalyst showed an overpotential of 141 mV at 10 mA cm-2 and a Tafel slope of 65.6 mV dec-1.
  • Amorphous RuS2 demonstrated significantly higher catalytic activity than crystalline RuS2 due to increased intrinsic activity and active sites.

Conclusions:

  • Amorphous ruthenium sulfide is a highly promising electrocatalyst for the hydrogen evolution reaction.
  • The amorphous state offers advantages over crystalline forms for HER catalysis.
  • This study presents a viable strategy for designing advanced HER electrocatalysts in an amorphous state.