Kinetics for the reactions of H30+ (H20)n with CH3SOCH3

Article Abstract:

The rate constants and product branching functions for the proton hydrate clusters H3O+(H20)n (n = 0-4), reacting with dimethyl sulfoxide were measured. The reactions were studied over the temperature range 198-298 K. The instability of large clusters at higher temperatures only permitted their study at low temperatures. All reactions were fast, approaching the collisional limit. The small clusters were slightly slower than the collision limit especially at 298 K.

Ions, Chemical reaction, Rate of, Chemical kinetics, Dimethyl sulfoxide

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Experimental studies of diffusion on fractal surfaces

Article Abstract:

A study was conducted to analyze a second high surface area support matrix, polystyrene microspheres, to examine diffusion on fractal surfaces. The composites were cast on silicon wafers and imaged by scanning electron microscopy. Results indicated that the structure of the interface had a significant effect on the efficiency of the transport process. In addition, the transport coefficients for the interface and the bulk were not affected by the microstructure.

Surface chemistry, Polystyrene, Microspheres

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