HIGH-FIELD CROSS-POLARIZATION NMR FROM LASER-POLARIZED XENON TO SURFACE NUCLEI

被引：37

作者：

GAEDE, HC

SONG, YQ

TAYLOR, RE

MUNSON, EJ

REIMER, JA

PINES, A

机构：

[1] UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

来源：

APPLIED MAGNETIC RESONANCE | 1995年 / 8卷 / 3-4期

关键词：

D O I：

10.1007/BF03162652

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A method for NMR investigations of surface nuclei using cross polarization from optically polarized xenon (OPCP) is described. We find this methodology results in enhancement factors of approximately 10(3) upon application to surface protons. The dynamics of Xe-129 transfer to protons is examined in some detail, including the time, temperature, and multiple contact dependences of signal intensities. Furthermore, we discuss the sensitivity of the transfer process to spatial diffusion. Finally, we report on application of the OPCP experiment to a low total surface area sample.

引用

页码：373 / 384

页数：12

共 17 条

[1] SOLID-STATE NMR TECHNIQUES FOR THE STUDY OF SURFACE PHENOMENA [J].