Fullerenes, very high pressure chemical

Novel means of storing hydrogen are the subject of intensive research because of the problems with the methods described earlier. In particular, there has been considerable experimentation with hydrogen storage in fullerenes ( buckyballs or carbon nanotubes ), which are microscopic structures fashioned out of carbon. Recent research indicates that there is potential for buckyball storage through a combination of chemical and physical containment but at very high temperature and pressure.20 These novel... 

It has been shown that fullerenes or their derivatives can exhibit very interesting chemical, electrical, magnetic, and mechanical properties. Besides, for example, the superconductivity, which has been experimentally verified for the alkali metal fullerides M3C60 with M = K or Rb [77], fullerenes can serve as a starting material for diamond synthesis [78,79] and may exhibit high hardness themselves under high pressure conditions [80]. 

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