A new solution for storing hydrogen fuel for alternative energy

Umit B. Demirci and colleagues explain that storing hydrogen in solids is a recent development and a promising step toward building a hydrogen economy. That's the idea originated in the 1970s and promoted by former President George W. Bush that we replace fossil fuels with hydrogen, which can serve as a clean fuel.

Although a promising alternative to conventional energy sources, hydrogen has posed a number of technological challenges that scientists are still overcoming.

One of those issues has to do with storage. Previously, researchers were focused on developing hydrogen-containing liquids or compressing it in gas form.

Now, solid storage is showing potential for holding hydrogen in a safe, stable and efficient way. In the latest development on this front, Demirci's team looked to a new kind of material.

They figured out a way to make a novel crystal phase of a material containing lithium, boron and the key ingredient, hydrogen. To check how they could get the hydrogen back out of the material, the scientists heated it and found that it released hydrogen easily, quickly and only traces of unwanted by-products.

The authors acknowledge funding from the Direction Générale de l'Armement (France), the Centre National de la Recherche Scientifique (France) and Fonds de la Recherche Scientifique (Belgium).

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