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

The Nucleosome Core Particle02:10

The Nucleosome Core Particle

14.1K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
The paradox
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their main responsibility is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. While on the other hand, they must allow polymerase enzymes to access DNA...
14.1K
The Nucleosome Core Particle01:12

The Nucleosome Core Particle

2.2K
Nucleosomes are the DNA-histone complex, where the DNA strand is wound around the histone core. The histone core is an octamer containing two copies of H2A, H2B, H3, and H4 histone proteins.
Nucleosomes, paradoxically, perform two opposite functions simultaneously. On the one hand, their primary aim is to protect the delicate DNA strands from physical damage and help achieve a higher compaction ratio. On the other hand, they must allow polymerase enzymes to access histone-bound DNA during...
2.2K
Acid-Catalyzed Ring-Opening of Epoxides02:24

Acid-Catalyzed Ring-Opening of Epoxides

8.8K
Epoxides that are three-membered ring systems are more reactive than other cyclic and acyclic ethers. The high reactivity of epoxides originates from the strain present in the ring. This ring strain acts as a driving force for epoxides to undergo ring-opening reactions either with halogen acids or weak nucleophiles in the presence of mild acid. The acid catalyst converts the epoxide oxygen, a poor leaving group, into an oxonium ion, a better leaving group, making the reaction feasible. The...
8.8K
Base-Catalyzed Ring-Opening of Epoxides02:26

Base-Catalyzed Ring-Opening of Epoxides

10.1K
Due to their highly strained structures, epoxides can readily undergo ring-opening reactions through nucleophilic substitution, either in the presence of an acid or a base. The nucleophilic substitution reactions in the presence of acid are called acid-catalyzed ring-opening reactions, and nucleophilic substitution reactions in the presence of a base are called base-catalyzed ring-opening reactions. Epoxides undergo base-catalyzed ring-opening reactions in the presence of a strong nucleophile...
10.1K
Acid-Catalyzed Hydration of Alkenes02:45

Acid-Catalyzed Hydration of Alkenes

17.1K
Alkenes react with water in the presence of an acid to form an alcohol. In the absence of acid, hydration of alkenes does not occur at a significant rate, and the acid is not consumed in the reaction. Therefore, alkene hydration is an acid-catalyzed reaction.
17.1K
Base-Catalyzed Aldol Addition Reaction01:08

Base-Catalyzed Aldol Addition Reaction

4.5K
As depicted in Figure 1, base-catalyzed aldol addition involves adding two carbonyl compounds in aqueous sodium hydroxide to form a β-hydroxy carbonyl compound.
4.5K

You might also read

Related Articles

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

Sort by
Same author

Spin-Dominated Electroreduction of Oxygen to Hydrogen Peroxide: A Case Study With Molecular Model Catalysts.

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

Comprehensive understanding the structure-composition-performance relationships of anti-corrosive coatings from experiments and theoretical calculations: Progresses and challenges.

Advances in colloid and interface science·2026
Same author

Rapid Fabrication of Cobalt/Cobalt Oxide Heterostructured Catalysts for Efficient Electrochemical Water Splitting.

Chemistry, an Asian journal·2026
Same author

Ultrafast Synthesis of Titanium Suboxide via Magnetic Induction Heating for Enhanced Photodynamic Activity.

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

Customized composition of lithium metal solid-electrolyte interphase by electric field modulation of anion motion direction.

Nature communications·2026
Same author

DELLA gene expression may be involved in chasmogamous-cleistogamous flower development and regulate the expression of B-class floral homeotic genes in Viola philippica.

Plant physiology and biochemistry : PPB·2026

Related Experiment Video

Updated: Jan 21, 2026

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination
11:16

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination

Published on: August 18, 2020

5.9K

Ethanol Electrooxidation Catalyzed by Tungsten Core@Palladium Shell Nanoparticles.

Yang Yang1, Minghua Tian1, Qiaoxia Li1,2,3

  • 1Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, College of Environmental and Chemical Engineering , Shanghai University of Electric Power , 2588 Changyang Road , Yangpu District, Shanghai 200090 , China.

ACS Applied Materials & Interfaces
|August 8, 2019
PubMed
Summary

Researchers developed tungsten core@palladium shell nanoparticles (W@Pd/C) for electrocatalysis. The W@Pd/C synthesized at 0°C showed superior ethanol oxidation reaction (EOR) performance and stability compared to commercial catalysts.

Keywords:
core−shell nanoparticleethanol oxidation reactiongalvanic replacement reactionmass activitypalladium−tungsten nanoparticle

More Related Videos

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
11:54

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Published on: June 25, 2018

10.7K
Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
08:19

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

18.9K

Related Experiment Videos

Last Updated: Jan 21, 2026

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination
11:16

Preparation of Silver-Palladium Alloyed Nanoparticles for Plasmonic Catalysis under Visible-Light Illumination

Published on: August 18, 2020

5.9K
Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles
11:54

Ligand-Mediated Nucleation and Growth of Palladium Metal Nanoparticles

Published on: June 25, 2018

10.7K
Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles
08:19

Synthesis, Characterization, and Functionalization of Hybrid Au/CdS and Au/ZnS Core/Shell Nanoparticles

Published on: March 2, 2016

18.9K

Area of Science:

  • Materials Science
  • Electrochemistry
  • Nanotechnology

Background:

  • Bimetallic nanostructures are crucial electrocatalysts for various chemical reactions.
  • Developing efficient and stable electrocatalysts is key for energy conversion technologies.

Purpose of the Study:

  • To synthesize carbon-supported palladium-tungsten alloy nanoparticles (W@Pd/C) with a core-shell structure.
  • To investigate the effect of synthesis temperature on nanoparticle morphology and electrocatalytic activity for ethanol oxidation reaction (EOR).

Main Methods:

  • Galvanic replacement reaction using amorphous tungsten nanoparticles and Pd(II) at 0, 25, and 50 °C.
  • Characterization using (scanning) transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy.
  • Electrochemical evaluation of ethanol oxidation reaction (EOR) performance.

Main Results:

  • W@Pd/C nanoparticles synthesized at 0 °C exhibited a uniform dispersion of smaller particles with a quasi-tungsten core@palladium shell structure.
  • Higher synthesis temperatures (25 and 50 °C) led to nanoparticle agglomeration.
  • The W@Pd/C sample prepared at 0 °C demonstrated a mass activity of 9535.5 mA mgPd-1 for EOR, over three times higher than commercial Pd/C.
  • Enhanced stability was observed for the W@Pd/C sample prepared at 0 °C.

Conclusions:

  • The synthesis temperature significantly influences the morphology and dispersion of W@Pd/C nanoparticles.
  • The W@Pd/C core-shell nanostructure prepared at 0 °C is a highly effective electrocatalyst for ethanol oxidation reaction (EOR).
  • This material offers improved activity and stability, showing promise for electrochemical energy applications.