Abstract
The sorption of acetone from the vapor phase by Keplerate polyoxomolybdate (POM) nanoclusters, Mo132 and Mo72Fe30, and Mo138, a POM with a toroid structure, is studied via equilibrium interval sorption (a modification of vapor sorption gravimetry). The highest sorption capacity is registered for Mo132, while the other two show performance an order of magnitude lower. The specific Gibbs energy of the interaction between the POMs and acetone is reported. Small-angle X-ray and neutron scattering analysis indicates a considerable difference between the natures of Mo132 and Mo138 surfaces.
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