25. Chanho Pak and Ryong Ryoo Study of xenon adsorption on alkaline-earth cation in Y zeolite based on chemical shift in 129Xe NMR spectrum J. Korean Chem. Soc. 36, 351-359 (1992).
24. Sung June Cho, Seong Moon Jung, Yong Gun Shul and Ryong Ryoo Formation and growth of a Ru cluster in a Y zeolite supercage probed by 129Xe NMR spectroscopy and xenon adsorption measurements J. Phys. Chem. 96, 9922-9927 (1992).
23. O Bong Yang, Seong Ihl Woo and Ryong Ryoo Formation of small Pt-Ir bimetallic clusters in NaY zeolite probed with 129Xe NMR spectroscopy and ethane hydrogenolysis J. Catal. 137, 357-367 (1992).
22. Wee-Kyeong Kang, Sung June Cho, Minyung Lee, Dong-Ho Kim, Ryong Ryoo, Kyung-Hoon Jung and Du-Jeon Jang Excited state intramolecular proton transfer and physical properties of 7-hydroxyquinoline Bull. Korean Chem. Soc. 13, 140-145 (1992).
21. D. H. Ahn, J. S. Lee, M. Nomura, W. M. H. Sachtler, G. Moretti, S. I. Woo and R. Ryoo Characterization of zeolite-supported Pt-Cu bimetallic catalyst by xenon-129 NMR and EXAFS J. Catal. 133, 191-201 (1992).
20. Ryong Ryoo, Sung June Cho, Chanho Pak, Jeong-Guk Kim, Son-Ki Ihm and Jeong Yong Lee Application of the xenon-adsorption method for the study of metal cluster formation and growth on Y zeolite J. Am. Chem. Soc. 114, 76-82 (1992).
19. Jeong-Guk Kim, Son-Ki Ihm, Jeong Yong Lee and Ryong Ryoo Formation of a small palladium cluster by anchoring on a multivalent cation in a zeolite supercage studied by xenon adsorption J. Phys. Chem. 95, 8546-8552 (1991).
18. Dong Jin Suh, Tae-Jin Park, Son-Ki Ihm and Ryong Ryoo 129Xe NMR spectroscopy of xenon gas adsorbed on amorphous carbons J. Phys. Chem. 95, 3767-3771 (1991).
17. B. F. Chmelka, J. G. Pearson, S.-B. Liu, R. Ryoo, L.-C. de Ménorval and A. Pines NMR study of the distribution of aromatic molecules in NaY zeolite J. Phys. Chem. 95, 303-310 (1991).
16. Jung-Ki Park, Byung-Kyu Park and Ryong Ryoo Critical ion concentrations for clusters in sodium sulfonated polystyrene ionomers Polym. Eng. Sci. 31, 873-878 (1991).
15. Jin Deog Song, Ryong Ryoo and Mu Shik Jhon Anion binding properties of poly(vinylpyrrolidone) in aqueous solution studied by halide NMR spectroscopy Macromolecules 24, 1727-1730 (1991).
14. Ryong Ryoo, Chanho Pak, Do Hee Ahn, Louis-Charles de Ménorval and François Figueras 129Xe NMR to probe microscopic mixing state of composite catalysts Catal. Lett. 7, 417-422 (1990).
13. Ryong Ryoo, Chanho Pak and Bradley F. Chmelka Macroscopic or microscopic information of Y zeolite from 129Xe n.m.r. line splitting Zeolites 10, 790-793 (1990).
12. Gon Seo and Ryong Ryoo 31P, 27Al, and 129Xe NMR study of phosphorous-impregnated HZSM-5 zeolite catalysts J. Catal. 124, 224-230 (1990).
11. O Bong Yang, Seong Ihl Woo and Ryong Ryoo 129Xe NMR proof for the distribution of platinum species during Pt/NaY preparation by H2PtCl6 impregnation and Pt(NH3)42+ cation exchange methods J. Catal. 123, 375-382 (1990).
10. Seok Heon Oh, Ryong Ryoo and Mu Shik Jhon Iodine-127 and potassium-39 NMR study of the interaction of ions with water-soluble polymers Macromolecules 23, 1671-1675 (1990).
9. Louis-Charles de Ménorval, Daniel Raftery, Shang-Bin Liu, Kiyonori Takegoshi, Ryong Ryoo and Alexander Pines Investigations of adsorbed organic molecules in Na-Y zeolite by xenon-129 NMR J. Phys. Chem. 94, 27-31 (1990).
8. Seok Heon Oh, Ryong Ryoo and Mu Shik Jhon Molecular motions of tactic poly(2-hydroxyethyl methacrylate) in solutions studied by 13C-NMR relaxation measurement J. Polym. Sci., Part A: Polym. Chem. 27, 1383-1399 (1989).
7. B. F. Chmelka, L.-C. de Ménorval, R. Csencsits, R. Ryoo, S.-B. Liu, C. J. Radke, E. E. Petersen and A. Pines Calcination-dependence of platinum cluster formation in NaY zeolite: A xenon-129 NMR study Stud. Surf. Sci. Catal. 48, 269-278 (1989).
6. B. F. Chmelka, L.-C. de Ménorval, R. Csencsits, R. Ryoo, S.-B. Liu, C. J. Radke, E. E. Petersen and A. Pines Probing metal cluster formation in NaY zeolite by 129Xe NMR J. Am. Chem. Soc. 110, 4465-4467 (1988).
5. R. Ryoo, S.-B. Liu, L.-C. de Ménorval, K. Takegoshi, B. F. Chmelka, M. Trecoske and A. Pines Distribution of hexamethylbenzene in a zeolite studied by xenon-129 and multiple-quantum NMR J. Phys. Chem. 91, 6575-6577 (1987).
4. Michel Boudart, Mahesh G. Samant and Ryong Ryoo Atomic and electronic structure and chemical reactivity of metal clusters Ultramicroscopy 20, 125-133 (1986).
3. Man Chai Chang, Ryong Ryoo and Mu Shik Jhon Thermodynamic properties of liquid carbon Carbon 23, 481-485 (1985).
2. Ryong Ryoo, Mu Shik Jhon and Henry Eyring Temperature and pressure dependence of viscosity of quantum liquid 4He according to significant structure theory Proc. Natl. Acad. Sci. USA 77, 4399-4402 (1980).
1. Ryong Ryoo, Mu Shik Jhon and Henry Eyring Significant structure theory applied to liquid 4He Proc. Natl. Acad. Sci. USA 77, 18-22 (1980).
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