COLL 395 |
| Steven M. Thornberg1, Deborah E. Hunka1, Ion C. Abraham2, Russell L. Jarek3, Tina M. Nenoff4, and Genoveva Buelna4. (1) Chemical and Biological Sensing, Imaging and Analysis, Sandia National Laboratory, P.O. Box 5800, MS 0886, Albuquerque, NM 87185-0886, (2) Chemical and Biological Sensing, Imaging and Analysis, Sandia National Laboratories, P.O. Box 5800, MS 0886, Albuquerque, NM 87185, (3) Yucca Mountain Project Repository Testing and Analysis, Sandia National Laboratories, P.O. Box 5800 MS 0778, Albuquerque, NM 87185, (4) Chemical and Biological Technologies, Sandia National Laboratories, PO Box 5800, MS 0734, Albuquerque, NM 87185-0734 |
| Cluster formation from zeolitic material and solvent-modified zeolites has been investigated using laser ablation coupled with Fourier transform ion cyclotron resonance. For clusters generated from beta zeolite, the main cluster series obtained have the basic structure [(SiO2)]nX]–, where X=OH, AlO, AlO2, and Al3O5. However, when the zeolite is pretreated with acetone, the AlO and Al3O5 series are no longer observed while the new series H3O2 and H5O3 appear in the spectrum. The relative intensities of OH and AlO2 series are different from that seen in the pure beta zeolite experiments. Hydrocarbon attachment experiments were performed on the laser ablated clusters. Ethene, propene, 1- butene and 2- butene all successfully attached to [(SiO2)]nOH]– cluster series. These studies also showed that while ethene, 1-butene and 2-butene attach to the [(SiO2)nAlO2]– cluster series, no evidence of propene attachment was observed.
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Nanoscience and Nanotechnology
8:30 AM-11:45 AM, Wednesday, March 31, 2004 Marriott -- Orange County 5, Oral
Division of Colloid and Surface Chemistry |