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Keywords:

  • carboxylate ligands;
  • chromium;
  • hydrogen;
  • mesoporous materials;
  • physisorption

Graphical Abstract

Thumbnail image of graphical abstract

Large hydrogen-storage capacity at liquid-nitrogen temperature is exhibited by the metal–organic framework MIL-101. In the zeotype architecture of this porous solid (see picture) each intersection of the cages is occupied by a supertetrahedron formed by trimers of chromium octahedra assembled with benzene-1,4-dicarboxylate ligands.