论文信息 - Surface study of supported metal particles by 129Xe NMR.

Surface study of supported metal particles by 129Xe NMR.

The surfaces of platinum clusters in the supercages of NaY zeolite have been studied by {sup 129}Xe NMR over the temperature range 80--293 K. The sensitivity of this weakly perturbing technique makes it possible to reveal the heterogeneity of the electronic structure of the particle surface. The temperature dependence of the {sup 129}Xe spin-lattice relaxation indicates that the surface sites with the highest adsorption energy possess metallic character.

Pines | Chmelka | Pietrass | Bifone | Kritzenberger

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