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Space invaders - Nature
MOFs, or metal–organic frameworks, are sponge-like crystalline compounds held together by strong chemical bonds — carbon–carbon, carbon–oxygen, or metal–oxygen. Their unique structure results in solids that are rigid and strong, but at the same time porous, flexible and incredibly light. The 'killer app' for MOFs could well be in making the hydrogen economy a reality by providing the solution to the problem of hydrogen storage.