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

Acids, Bases and Neutralization Reactions03:26

Acids, Bases and Neutralization Reactions

64.0K
An acid-base reaction is one in which a hydrogen ion, H+, is transferred from one chemical species to another. Such reactions are of central importance to numerous natural and technological processes, ranging from the chemical transformations within cells or lakes and oceans to the industrial-scale production of fertilizers, pharmaceuticals, and other substances essential to the society.
64.0K
Acids, Bases and Neutralization Reactions01:27

Acids, Bases and Neutralization Reactions

10.7K
Acids and bases play several important roles in biology. The pH of a biological system can significantly impact the function of biological molecules, including enzymes, proteins, and nucleic acids. For example, enzymes have optimal pH ranges for their activity, and changes in pH can denature or alter their structure, affecting their function. Acids and bases also play a crucial role in cellular signaling and communication. The pH of the extracellular fluid around cells can influence the...
10.7K
Hydrogen Bonds00:26

Hydrogen Bonds

134.7K
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
134.7K
Hydrogen Bonds01:04

Hydrogen Bonds

15.2K
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...
15.2K
Reaction Rate02:53

Reaction Rate

65.9K
The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the time dependence of some property that can be related to reactant or product amounts. Rates of reactions that consume or produce gaseous substances, for example, are conveniently determined by measuring changes in volume or pressure.
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...
65.9K
Chemical Reactions01:19

Chemical Reactions

96.1K
A chemical reaction is a process by which the bonds in the atoms of substances are rearranged to generate new substances. Matter cannot be created or destroyed in a chemical reaction—the same type and number of atoms that make up the reactants are still present in the products. Merely, the rearrangement of chemical bonds produces new compounds.
Chemical Reactions Rearrange Atoms into New Substances
A chemical reaction takes starting materials—the reactants—and changes them...
96.1K

You might also read

Related Articles

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

Sort by
Same author

Fluorine Positional Isomerism Enables H-Aggregation for High-Performance Semicrystalline Polymer Donors in Organic Solar Cells.

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

Mapping Ethnic Enclaves for Health Disparities Research: A Hybrid Clustering Approach.

Journal of racial and ethnic health disparities·2026
Same author

Using machine learning algorithms based on laboratory indicators to establish a diagnostic model for lung cancer.

BMC cancer·2026
Same author

Biomimetic Catalytic System Mimicking Immune Defense and Tissue Healing for Dynamic Treatment of Skin Infections.

Nano letters·2026
Same author

ATG5 Plays a Role in <i>Toxoplasma gondii</i> Replication and Egress Within Host Cells.

Transboundary and emerging diseases·2026
Same author

Atovaquone Targets Mitochondrial Metabolism and Enhances Radiosensitivity of Diffuse Intrinsic Pontine Glioma.

Cancers·2026

Related Experiment Video

Updated: Feb 14, 2026

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture
09:53

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

Published on: May 13, 2018

8.7K

A Novel Graphdiyne-Based Catalyst for Effective Hydrogenation Reaction.

Han Shen1,2, Yongjun Li2,3, Zhiqiang Shi1

  • 1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong , Shandong Normal University , 88 Wenhuadonglu Road , Jinan 250014 , P. R. China.

ACS Applied Materials & Interfaces
|February 23, 2018
PubMed
Summary

Ultrastable platinum nanoparticles (Pt NPs) anchored on graphdiyne exhibit enhanced performance in hydrogenation reactions. This novel catalyst design prevents nanoparticle migration, offering a promising alternative to commercial catalysts.

Keywords:
Pt nanoparticlegraphdiynehybrid materialhydrogenation catalysismicrowave irradiation

More Related Videos

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
12:08

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes

Published on: June 24, 2022

4.1K
A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

20.4K

Related Experiment Videos

Last Updated: Feb 14, 2026

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture
09:53

Predicting Catalyst Extrudate Breakage Based on the Modulus of Rupture

Published on: May 13, 2018

8.7K
Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes
12:08

Catalytic Reactions at Amine-Stabilized and Ligand-Free Platinum Nanoparticles Supported on Titania During Hydrogenation of Alkenes and Aldehydes

Published on: June 24, 2022

4.1K
A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

20.4K

Area of Science:

  • Materials Science
  • Nanotechnology
  • Catalysis

Background:

  • Platinum nanoparticles (Pt NPs) hybridized with nanostructured carbon materials are crucial for hydrogenation catalysis.
  • High stability of these catalysts is essential for preventing thermal migration and maintaining catalytic activity.

Purpose of the Study:

  • To fabricate ultrastable Pt NPs anchored on graphdiyne (GDY).
  • To investigate the strong interactions between Pt NPs and GDY for enhanced catalytic performance.
  • To tune the electron density of Pt NPs via charge transfer interactions for improved hydrogenation reactions.

Main Methods:

  • Fabrication of Pt NPs anchored on porous graphdiyne.
  • Characterization of Pt NP size (2-3 nm) and stability on the GDY substrate.
  • Evaluation of catalytic performance in the hydrogenation of aldehydes and ketones to alcohols.

Main Results:

  • Ultrastable Pt NPs were successfully anchored on graphdiyne.
  • Strong interactions between Pt NPs and GDY prevented thermal migration.
  • The Pt NPs/GDY catalyst demonstrated high performance in hydrogenating aldehydes and ketones, outperforming commercial Pt-C.

Conclusions:

  • Graphdiyne is a promising substrate for developing highly stable metal nanoparticle-based heterogeneous catalysts.
  • The strong charge transfer interactions in Pt NPs/GDY enhance catalytic activity and stability.
  • This approach is particularly suitable for catalysts requiring robust metal-nanoparticle-reactant interactions.