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

Transmission Electron Microscopy01:15

Transmission Electron Microscopy

5.9K
In 1931, physicist Ernst Ruska—building on the idea that magnetic fields can direct an electron beam just as lenses can direct a beam of light in an optical microscope—developed the first prototype of the electron microscope. This development led to the development of the field of electron microscopy. In the transmission electron microscope (TEM), electrons are produced by a hot tungsten element and accelerated by a potential difference in an electron gun, which gives them up to 400...
5.9K

You might also read

Related Articles

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

Sort by
Same author

High serum transthyretin concentrations identify a low likelihood of advanced myocardial amyloid burden in suspected ATTR cardiomyopathy.

European journal of heart failure·2026
Same author

Robotic Centrifugal Microfluidics with In-Rotation Liquid Supply for the Extraction of Multiple Liquid Biopsy Analytes in One Platform.

Biosensors·2026
Same author

Imaging of Fibroblast Activation Protein in the Microenvironment of Tumors by <sup>18</sup>F‑Labeled Positron Emission Tomography Tracers with Increased Polarity.

ACS pharmacology & translational science·2026
Same author

<sup>18</sup>F-Labeled Small-Molecule and Low-Molecular-Weight PET Tracers for the Noninvasive Detection of Cancer.

Recent results in cancer research. Fortschritte der Krebsforschung. Progres dans les recherches sur le cancer·2026
Same author

Atrial Fibrillation Increases Proarrhythmic Mechanisms in the Ventricle.

JACC. Basic to translational science·2026
Same author

Generation of Cloned Sheep Lacking Galactose-α1,3-Galactose and N-Glycolylneuraminic Acid Antigens.

Xenotransplantation·2026

Related Experiment Video

Updated: Sep 20, 2025

Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries
09:51

Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries

Published on: April 22, 2013

12.9K

Microstructural Study of MgB2 in the LiBH4-MgH2 Composite by Using TEM.

Ou Jin1,2, Yuanyuan Shang3, Xiaohui Huang2

  • 1Institute of Applied Materials, Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany.

Nanomaterials (Basel, Switzerland)
|June 10, 2022
PubMed
Summary

Additives improve reactive hydride composites for hydrogen storage by enhancing kinetics. The study reveals that specific additive-induced MgB2 platelet formation, driven by reduced atomic misfit, is key to faster hydrogen release.

Keywords:
additivecrystallographyhydrogen storagereactive hydride compositetransmission electron microscopy

More Related Videos

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.6K
Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys
12:18

Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys

Published on: June 27, 2022

2.8K

Related Experiment Videos

Last Updated: Sep 20, 2025

Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries
09:51

Atom Probe Tomography Studies on the CuIn,GaSe2 Grain Boundaries

Published on: April 22, 2013

12.9K
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
08:55

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

Published on: June 7, 2018

8.6K
Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys
12:18

Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys

Published on: June 27, 2022

2.8K

Area of Science:

  • Materials Science
  • Chemical Engineering
  • Nanotechnology

Background:

  • Reactive hydride composites (RHCs) show promise for hydrogen storage but suffer from slow hydrogen release kinetics.
  • Additives can enhance RHC performance, yet the underlying mechanisms remain poorly understood.
  • Understanding kinetic limitations is crucial for advancing hydrogen storage technologies.

Purpose of the Study:

  • To elucidate the mechanism by which additives improve the kinetics of LiBH4-MgH2 composites for hydrogen storage.
  • To investigate the role of the MgB2 phase formation in the rate-limiting steps of dehydrogenation.
  • To correlate additive effects with MgB2 nucleation, growth, and morphology.

Main Methods:

  • Utilized versatile transmission electron microscopy (TEM) to analyze the LiBH4-MgH2 composite with 3TiCl3·AlCl3 additives.
  • Focused on the formation and characteristics of the MgB2 phase, identified as the rate-limiting step.
  • Examined heterogeneous nucleation of MgB2 on different centers (Mg, TiB2, AlB2) and analyzed interfacial atomic misfit.

Main Results:

  • Identified heterogeneous nucleation of MgB2 on Mg, TiB2, and AlB2 as dependent on interfacial strain energy and atomic misfit.
  • Observed distinct MgB2 morphologies (bars and platelets) resulting from varied nucleation and growth.
  • Demonstrated that the formation of numerous MgB2 platelets significantly enhances dehydrogenation kinetics.

Conclusions:

  • The formation of MgB2 platelets, facilitated by additives with small atomic misfit, is the primary driver for improved dehydrogenation kinetics in LiBH4-MgH2.
  • Selecting additives that minimize atomic misfit is a key strategy for optimizing RHC performance in hydrogen storage applications.
  • This study provides critical mechanistic insights for designing advanced materials for efficient hydrogen energy conversion.