High-Field Nmr of Adsorbed Xenon Polarized by Laser Pumping

TitleHigh-Field Nmr of Adsorbed Xenon Polarized by Laser Pumping
Publication TypeJournal Article
Year of Publication1991
AuthorsRaftery D., Long H., Meersmann T., Grandinetti P.J, Reven L., Pines A
JournalPhysical Review Letters
Volume66
Issue5
Pagination584-587
Date PublishedFeb 4
ISBN Number0031-9007
Accession NumberWOS:A1991EV89700017
Keywordssolids
Abstract

Optical pumping has been used to enhance the pulsed NMR signal of Xe-129, allowing the detection of low-pressure xenon gas and of xenon adsorbed on powdered solids. We observe an increase in sensitivity of more than 2 orders of magnitude over conventional NMR, the current limitation being the laser power. Adsorbed xenon is observed at 298 K on graphitized carbon (10 m2/g) and on powdered benzanthracene (approximately 0.5 m2/g) below 170 K. The increased sensitivity of this technique allows the study of a large class of amorphous materials with surface areas below 10 m2/g including semiconductors, polymers, metal oxides, and catalysts.

URL<Go to ISI>://WOS:A1991EV89700017
DOI10.1103/Physrevlett.66.584
Short TitleHigh-Field Nmr of Adsorbed Xenon Polarized by Laser Pumping
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