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. Author manuscript; available in PMC: 2017 Sep 22.
Published in final edited form as: Nature. 2017 Mar 22;543(7647):657–664. doi: 10.1038/nature21419

Figure 3. Energy–structure–function maps for T2.

Figure 3

a, Volumetric methane capacity at 5.8 bar/298 K (the depletion pressure). b, Isosteric heat of adsorption for methane. c, Calculated H2 deliverable capacity (kg m-3, 100 bar/77 K, 5 bar/160 K) for structures selected from the leading edge of the ESF; T2-γ is favoured. d, Simulated propane/methane selectivity (1 bar/298 K); T2-β and T2-δ are favoured. e, Relative lattice energy vs Df, the largest free sphere, which relates to pore size; symbols colored by pore dimensionality. (f–h) Selected hypothetical structures from the leading edge: T2-A, T2-B and T2-C correspond to labels A, B and C in e.