Synthesis and gas sorption properties of halogen-doped mesoporous chromium( iii) terephthalate.

Mesoporous chromium( iii) terephthalate MIL-101 was treated with aqueous solutions of sodium fluoride, chloride, and bromide. The properties of the resulting compounds to sorb nitrogen, hydrogen, and methane were studied. The methane sorption was shown to depend on the nature of the inserted halide ion. The treatment with a sodium chloride solution leads to an increase in the methane uptake by MIL-101. [ABSTRACT FROM AUTHOR]