The ever-increasing demand for energy coupled with dwindling fossil fuel resources make the establishment of a clean and sustainable energy system a compelling need. Hydrogen-based energy systems offer potential solutions. Although, in the long-term, the ultimate technological challenge is large-scale hydrogen production from renewable sources, the pressing issue is how to store hydrogen efficiently on board hydrogen fuel-cell vehicles1,2.

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DOI: 10.1016/S1369-7021(08)70251-7