Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5420954 | Solid State Nuclear Magnetic Resonance | 2006 | 6 Pages |
Abstract
We show that a Gaussian-shaped pulse can be used to excite selected 1H signals in hydroxyapatite, monetite and H-Y zeolite loaded with trimethylphosphine oxide (TMPO). This selective excitation method can be incorporated into Lee-Goldburg (LG) cross-polarization to obtain useful spectral editing opportunity. This new strategy has been applied to identify the Brønsted and the Lewis acid sites in H-Y zeolite using TMPO as the probe molecule.
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Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Shing-Jong Huang, Yao-Hung Tseng, Yun Mou, Shang-Bin Liu, Shih-Hao Huang, Chun-Pin Lin, Jerry C.C. Chan,