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 Experiment Videos

Liquid methanol under a static electric field.

Giuseppe Cassone1, Paolo V Giaquinta2, Franz Saija3

  • 1Sorbonne Universités, UPMC Univ Paris 06, UMR 7590, IMPMC, F-75005 Paris, France.

The Journal of Chemical Physics
|February 10, 2015
PubMed
Summary
This summary is machine-generated.

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

Electric Field Pushes the Water Dimer Radical Cation toward the Hemibonded Structure.

The journal of physical chemistry letters·2026
Same author

Exploring the Speciation of <i>trans</i>-Aconitic Acid in Aqueous Solution: Interactions with Divalent Metal Cations of Environmental Relevance.

ACS omega·2026
Same author

Structure and dynamics of confined water in naphthalene-diimide based molecular crystals.

The Journal of chemical physics·2026
Same author

Structure and dynamics of sulfur dioxide in water.

The Journal of chemical physics·2026
Same author

Dual quantum locking: Dynamic coupling of H<sub>2</sub> and H<sub>2</sub>O sublattices in hydrogen-filled ice.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Halogen Bonds under Electric Field with Quantum Accuracy and Relativistic Basis Sets.

The journal of physical chemistry. A·2026

Liquid methanol maintains its hydrogen-bond structure under electric fields up to 0.31 V/Å. Ionic conduction occurs above 0.36 V/Å, but proton transfer is less efficient than in water.

Area of Science:

  • Physical Chemistry
  • Materials Science
  • Computational Chemistry

Background:

  • Understanding the behavior of liquids under external electric fields is crucial for various technological applications.
  • Methanol's properties, particularly its hydrogen-bonding network, are sensitive to electric fields.
  • Previous studies have explored electric field effects on water, providing a basis for comparison.

Purpose of the Study:

  • To investigate the effects of static electric fields on the hydrogen-bond structure and ionic conductivity of liquid methanol.
  • To determine the electric field threshold for molecular dissociation in methanol.
  • To compare methanol's response to electric fields with that of water.

Main Methods:

  • Ab initio molecular dynamics simulations were employed.

Related Experiment Videos

  • Static electric fields of varying intensities were applied to liquid methanol.
  • Hydrogen-bond structure, dissociation threshold, and ionic current were analyzed.

    • Main Results:

    • Methanol's hydrogen-bond structure remained robust up to a dissociation threshold of approximately 0.31 V/Å.
    • Ohmic ionic current was observed above 0.36 V/Å.
    • Ionic conductivity was found to be at least one order of magnitude lower than water, indicating less efficient proton transfer.

    Conclusions:

    • The hydrogen-bond network in methanol is more resilient to electric fields than in water.
    • Methanol exhibits lower ionic conductivity and proton transfer efficiency compared to water under electric fields.
    • These findings are relevant for materials like direct-methanol fuel cells and Nafion membranes.