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

Interfacial Electrochemical Methods: Overview01:06

Interfacial Electrochemical Methods: Overview

Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current passing...
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

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 surface of...
Hydrogen Bonds01:04

Hydrogen Bonds

A hydrogen bond is formed when a weakly positive hydrogen atom already bonded to one electronegative atom (for example, the oxygen in the water molecule) is attracted to another electronegative atom from another polar molecule, such as water (H2O), hydrogen fluoride (HF), or ammonia (NH3). The huge electronegativity difference between the H atom (2.1) and the atom to which it is bonded (4.0 for an F atom, 3.5 for an O atom, or 3.0 for an N atom), combined with the very small size of an H atom...
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

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...
Heterogeneous Catalysis01:22

Heterogeneous Catalysis

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...
Leveling Effect01:29

Leveling Effect

In acid-base chemistry, the leveling effect refers to the limitation imposed by the solvent on the strength of acids and bases in solution. When a base stronger than the solvent's conjugate base is used, it deprotonates the solvent until the base is entirely consumed, making it ineffective against weaker acids. Conversely, an acid stronger than the solvent's conjugate acid protonates the solvent until the acid is depleted, rendering it ineffective against weaker bases. Essentially, the solvent...

You might also read

Related Articles

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

Sort by
Same author

In vivo liquid biopsy for glioblastoma malignancy by the AFM and LSPR based sensing of exosomal CD44 and CD133 in a mouse model.

Biosensors & bioelectronics·2021
Same author

Genomic evidence for the Chinese mountain cat as a wildcat conspecific (<i>Felis silvestris bieti</i>) and its introgression to domestic cats.

Science advances·2021
Same author

Optimization and visualization of phase modulation with filtered and amplified maximal-length sequence for SBS suppression in a short fiber system: a theoretical treatment.

Optics express·2021
Same author

The nearly complete genome of Ginkgo biloba illuminates gymnosperm evolution.

Nature plants·2021
Same author

All Binder-Free Electrodes for High-Performance Wearable Aqueous Rechargeable Sodium-Ion Batteries.

Nano-micro letters·2021
Same author

CSPG4 Is a Potential Therapeutic Target in Anaplastic Thyroid Cancer.

Thyroid : official journal of the American Thyroid Association·2021
Same journal

The Gyro-Top Optimization: A Physics-inspired Metaheuristic for Engineering Optimization and a Case Study of Feature Selection.

Journal of advanced research·2026
Same journal

MDH1 K298 succinylation stabilizes redox homeostasis to protect against cardiac ferroptosis in ischemia-reperfusion injury.

Journal of advanced research·2026
Same journal

Mapping sarcopenia's causal proteome reveals a leptin-driven inflammatory-mitochondrial axis for early prediction.

Journal of advanced research·2026
Same journal

Functional CRISPR screens reveal TPL1 lncRNA as a regulator of triple-negative breast cancer hallmarks.

Journal of advanced research·2026
Same journal

Regulatory role of protein lactylation in tumor metastasis: mechanisms and emerging therapeutic strategies.

Journal of advanced research·2026
Same journal

Methicillin-resistant Staphylococcus aureus extracellular vesicles induced IL-8 dependent proliferation in oral squamous cell carcinoma.

Journal of advanced research·2026
See all related articles

Related Experiment Video

Updated: May 10, 2026

Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

Interfacial work function matching enables efficient hydrogen spillover for superior alkaline hydrogen evolution.

Zhe Sun1, Xiaodong Chen2, Yitong Yin3

  • 1Department of Chemical and Petroleum Engineering, University of Calgary, Calgary T2N 1N4, Alberta, Canada.

Journal of Advanced Research
|May 8, 2026
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel electrocatalyst (Ni1Ru2@Cu) that significantly improves hydrogen evolution reaction (HER) efficiency by enabling efficient hydrogen spillover. This breakthrough advances green hydrogen production through optimized catalyst design.

Keywords:
Hydrogen evolutionHydrogen spilloverMetal–metal catalystsWork functiond-Band center

More Related Videos

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Related Experiment Videos

Last Updated: May 10, 2026

Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics
10:52

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Area of Science:

  • Materials Science
  • Electrochemistry
  • Catalysis

Background:

  • Sluggish kinetics in alkaline hydrogen evolution reaction (HER) hinder efficient green hydrogen production.
  • Hydrogen spillover is a promising strategy to overcome interfacial energy barriers but requires careful catalyst design.

Purpose of the Study:

  • To design a hydrogen spillover-based electrocatalyst by precisely tuning work function difference (ΔΦ) and d-band center offset (Δεd).
  • To minimize interfacial energy barriers and enhance HER performance.

Main Methods:

  • Rational design of NiₓRuᵧ nanocrystals anchored on Cu nanorods (NiₓRuᵧ@Cu).
  • Tailoring ΔΦ and Δεd at the metal-metal interface to facilitate hydrogen spillover.
  • Utilizing operando electrochemical measurements, electrochemical analysis, and DFT calculations.

Main Results:

  • The optimal Ni₁Ru₂@Cu catalyst exhibited an ultralow ΔΦ of 0.03 eV, enabling efficient hydrogen spillover.
  • Achieved exceptional HER performance with a 57 mV overpotential at 20 mA cm⁻², and a Tafel slope of 81.7 mV dec⁻¹.
  • Demonstrated remarkable long-term stability.

Conclusions:

  • Established a general paradigm for designing advanced hydrogen spillover-based catalysts.
  • Provided fundamental insights into multi-step reactions involving hydrogen intermediates.
  • Paved the way for high-performance alkaline water electrolysis.