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Updated: Oct 9, 2025
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
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Boron Hydrogen Compounds: Hydrogen Storage and Battery Applications.
1Département de Chimie Physique, Université de Genève, 30, Quai E. Ansermet, CH1211 Geneva 4, Switzerland.
Molecules (Basel, Switzerland)
|December 24, 2021
Summary
Light metal hydrides, like magnesium borohydride, are key for hydrogen storage. Research reveals intermediate species and high ionic conductivity in borohydrates, enabling new battery applications.
Area of Science:
- Materials Science
- Chemistry
- Energy Storage
Background:
- The catalyzed release of hydrogen from NaAlH4 spurred research into light hydrides for hydrogen storage.
- Magnesium borohydride (Mg(BH4)2) is a prominent material with 14.9 wt% hydrogen content, showing complex dehydrogenation intermediates.
- Boron hydrogen compounds, particularly closo-hydroborates, exhibit high stability and ionic conductivity, driving battery research.
Purpose of the Study:
- To review reaction pathways for hydrogen release from borohydrides (BH4- to B12H122-).
- To discuss properties essential for high-ionic-conduction materials.
- To highlight recent advancements in borohydrate applications for energy storage.
Main Methods:
- Literature review of dehydrogenation pathways.
- Analysis of intermediate species chemistry (e.g., B3H8-).
- Discussion of ionic conductivity in LiBH4 and Na2B12H12 phases.
Main Results:
- Detailed chemistry of B3H8- as an intermediate species.
- Discovery of high ionic conductivity in high-temperature phases of LiBH4 and Na2B12H12.
- Demonstration of a 4V Na battery prototype using a novel solid electrolyte.
Conclusions:
- Borohydrates offer promising pathways for hydrogen storage and advanced battery technologies.
- Understanding intermediate species and ionic conductivity is crucial for material optimization.
- Closo-hydroborates are key for developing stable and efficient energy storage solutions.
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