Asymmetrically Decorated,
Doped Porous Graphene As
an Effective Membrane for Hydrogen Isotope Separation
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Abstract
We propose a new route to hydrogen isotope separation
which exploits
the quantum sieving effect in the context of transmission through
asymmetrically decorated, doped porous graphenes. Selectivities of
D<sub>2</sub> over H<sub>2</sub> as well as rate constants are calculated
based on ab initio interaction potentials for passage through pure
and nitrogen functionalized porous graphene. One-sided dressing of
the membrane with metal provides the critical asymmetry needed for
an energetically favorable pathway
