SURFACE STUDY OF SUPPORTED METAL PARTICLES BY XE-129 NMR

被引：25

作者：

BIFONE, A

PIETRASS, T

KRITZENBERGER, J

PINES, A

CHMELKA, BF

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

[2] UNIV CALIF SANTA BARBARA,DEPT CHEM ENGN,SANTA BARBARA,CA 93106

[3] UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.74.3277

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The surfaces of platinum clusters in the supercages of NaY zeolite have been studied by 129Xe NMR over the temperature range 80293 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 129Xe spin-lattice relaxation indicates that the surface sites with the highest adsorption energy possess metallic character. © 1995 The American Physical Society.

引用

页码：3277 / 3280

页数：4

共 26 条

[1] NMR-STUDY OF ELECTRONIC-PROPERTIES OF THE CHEMISORPTION OF CO ON SUPPORTED PT CATALYSTS [J].