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When catalytic hydrogenations use parahydrogen instead of normal H2, the NMR signals of reaction products and intermediates can be dramatically enhanced. This phenomenon, called parahydrogen-induced polarization (PHIP), has been used previously to address the mechanisms of H2 activation by transition metal complexes and clusters in solution. At the same time, it is highly desirable to combine this...
NMR imaging and spectroscopy techniques are applied to study flow and filtration of liquids, gases and granular solids in various geometries and to the in situ studies of the interplay of mass transport and catalytic reactions in porous media. In particular, quantitative spatially resolved maps of flow velocities of liquids and gases in the channels of monoliths have been obtained. A comparative study...
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