Title | High-Field Nmr of Adsorbed Xenon Polarized by Laser Pumping |
Publication Type | Journal Article |
Year of Publication | 1991 |
Authors | Raftery D., Long H., Meersmann T., Grandinetti P.J, Reven L., Pines A |
Journal | Physical Review Letters |
Volume | 66 |
Issue | 5 |
Pagination | 584-587 |
Date Published | Feb 4 |
ISBN Number | 0031-9007 |
Accession Number | WOS:A1991EV89700017 |
Keywords | solids |
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 |
DOI | 10.1103/Physrevlett.66.584 |
Short Title | High-Field Nmr of Adsorbed Xenon Polarized by Laser Pumping |
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