Colloidal size effect and metal-particle migration in M@MOF/PCP catalysis.

Metal-organic framework catalysis: MIL-101 crystallites have been synthesized in different sizes and infiltrated with the Pd precursor complex [Pd(C5 H5 )(C3 H5 )]. Reduction of the Pd precursor complex gave rise to Pd nanoparticles inside the cavities of MIL-101 crystallites. Catalytic studies showed a clear dependence of the catalytic activity on the MIL-101 crystallite size. Furthermore, Pd-nanoparticle migration from MIL-101 crystallite to crystallite was observed under mild conditions.