Metal-organic frameworks (MOFs) are porous materials with large surface areas that are made up of metals linked through organic groups. They are the focus of research for a range of applications, including hydrogen storage.rnMartin Schroder at the University of Nottingham, UK, and his colleagues investigated which parts of a series of copper-based MOFs (one of which is pictured, above) were responsible for increasing the hydrogen-trapping ability of the materials.
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