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Updated: Dec 30, 2025
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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
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Light-Activated Hydrogen Storage in Mg, LiH and NaAlH4
Yahui Sun1, Kondo-Francois Aguey-Zinsou1
1MERLin, School of Chemical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia.
Chempluschem
|January 18, 2020
Summary
Gold nanoparticles enable light-activated hydrogen storage in materials like magnesium hydride. This plasmonic heating effect enhances hydrogen release and uptake efficiency at lower temperatures compared to conventional methods.
Area of Science:
- Materials Science
- Nanotechnology
- Chemical Engineering
Background:
- Hydrogen storage materials are crucial for clean energy technologies.
- Efficient hydrogen release and uptake often require high temperatures.
- Developing low-temperature hydrogen storage methods is a key challenge.
Purpose of the Study:
- To investigate light activation for hydrogen storage using gold nanoparticles.
- To explore the effect of plasmonic heating on hydride materials.
- To compare light-driven hydrogen storage with conventional thermal methods.
Main Methods:
- Dispersing gold nanoparticles on magnesium hydride, lithium hydride, and sodium alanate.
- Illuminating the materials with a Xe lamp to induce plasmonic heating.
- Measuring hydrogen release and material phase changes.
- Comparing results with direct electrical furnace heating.
Main Results:
- Gold nanoparticles induced localized heating to ~100°C upon illumination.
- Light-activated hydrogen storage showed higher efficiency than furnace heating.
- Enhanced hydrogen release from Au/LiH and improved performance for other hydrides.
- Plasmonic heating near nanoparticles is key to improved efficiency.
Conclusions:
- Light activation using gold nanoparticles offers an efficient pathway for hydrogen storage.
- This method shows potential for low-temperature hydrogen uptake and release.
- Further optimization could lead to practical applications in hydrogen energy systems.
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