45. Shang-Bin Liu, Tien-Sung Lin, Tran-Chin Yang, Tung-Ho Chen, Eng-Chin Hong and Ryong Ryoo EPR and 129Xe NMR studies of copper-exchanged NaY zeolites J. Phys. Chem. 99, 8277-8282 (1995). 파일 아이콘
44. Ihl Hyun Cho, Sung June Cho, Seung Bin Park and Ryong Ryoo Ru clusters with controlled sizes in NaY zeolite: Catalytic activity for ethane hydrogenolysis and XANES J. Catal. 153, 232-238 (1995). 파일 아이콘
43. Ryong Ryoo and Ji Man Kim Structural order in MCM-41 controlled by shifting silicate polymerization equilibrium J. Chem. Soc., Chem. Commun. , 711-712 (1995). 파일 아이콘
42. Chanho Pak and Ryong Ryoo Application of 129Xe NMR spectroscopy and EXAFS to probe the formation of a bimetallic cluster in zeolite Y Appl. Magn. Reson. 8, 475-488 (1995). 파일 아이콘
41. Joong-Whan Lee, Ryong Ryoo, Mu Shik Jhon and Kyoung-Ik Cho Bond density and physicochemical properties of a hydrogenated silicon nitride film J. Phys. Chem. Solids 56, 293-299 (1995). 파일 아이콘
40. Ryong Ryoo, Hyotcherl Ihee, Ja Hun Kwak, Gon Seo and Shang-Bin Liu 129Xe Nuclear magnetic resonance study on a solid-state defect in HZSM-5 zeolite Micropor. Mater. 4, 59-64 (1995). 파일 아이콘
39. Young Kil Kim, Jae Eui Yie, Sung June Cho and Ryong Ryoo Studies on the deactivation-resistant Ru catalyst J. Korean Ind. Eng. Chem. 5, 808-818 (1994). 파일 아이콘
38. Chanho Pak, Sung June Cho, Jeong Yong Lee and Ryong Ryoo Preparation of iridium clusters in zeolite Y via cation exchange: EXAFS, xenon adsorption, and 129Xe NMR Studies J. Catal. 149, 61-69 (1994). 파일 아이콘
37. J.-G. Kim, T. Kompany, R. Ryoo, T. Ito and J. Fraissard 129Xe n.m.r. study of Y3+-, La3+-, and Ce3+-exchanged X zeolites Zeolites 14, 427-432 (1994). 파일 아이콘
36. Ryong Ryoo, Ja Hun Kwak and Louis-Charles de Ménorval A 129Xe NMR spectroscopic technique to probe exclusively the internal surface of zeolite crystallites by coating of the external surface J. Phys. Chem. 98, 7101-7103 (1994). 파일 아이콘
35. H. Ihee, R. Ryoo, T. Bécue, C. Potvin, J.-M. Manoli and G. Djéga-Mariadassou Clustering of platinum atoms in zeolite EMT supercage: Comprehensive physicochemical characterization Stud. Surf. Sci. Catal. 84, 765-772 (1994). 파일 아이콘
34. Young H. Chang, Kyung H. Choi, Warren T. Ford, Sung June Cho and Ryong Ryoo XANES and EXAFS study of a platinum phthalocyanine J. Chem. Soc., Chem. Commun. , 785-787 (1994). 파일 아이콘
33. Tatjana Rades, Chanho Pak, Michèle Polisset-Thfoin M, Ryong Ryoo and Jacques Fraissard Characterization of bimetallic NaY-supported Pt-Pd catalyst by EXAFS, TEM and TPR Catal. Lett. 29, 91-103 (1994). 파일 아이콘
32. Jiho Park, Wee-Kyeong Kang, Ryong Ryoo, Kyung-Hoon Jung and Du-Jeon Jang A study on the photophysical properties of anthracene in zeolite J. Photochem. Photobiol., A 80, 333-339 (1994). 파일 아이콘
31. Ryong Ryoo and Sung June Cho Platinum cluster supported on zeolite a by ion-exchange of Pt(NH3)42+ Stud. Surf. Sci. Catal. 75, 1633-1636 (1993).
30. Ryong Ryoo, Sung June Cho, Chanho Pak and Jeong Yong Lee Clustering of platinum atoms into nanoscale particle and network on NaY zeolite Catal. Lett. 20, 107-115 (1993). 파일 아이콘
29. Ja Hun Kwak and Ryong Ryoo Site selective line broadening in magic angle spinning 29Si NMR of CuX zeolite J. Phys. Chem. 97, 11154-11156 (1993). 파일 아이콘
28. M. Boudart, R. Ryoo, G. P. Valenç and R. Van Grieken Chemisorption of H2 on supported Pt clusters probed by 129Xe NMR Catal. Lett. 17, 273-283 (1993). 파일 아이콘
27. Ryong Ryoo, Louis-Charles de Ménorval, Ja Hun Kwak and François Figueras 129Xe NMR spectrum of xenon in the α-cage of zeolite A during hydration and ion exchange J. Phys. Chem. 97, 4124-4127 (1993). 파일 아이콘
26. Ryong Ryoo, Chanho Pak and Sung June Cho EXAFS and catalytic activity of AgPt bimetallic cluster supported on NaY zeolite Jpn. J. Appl. Phys. 32, 475-477 (1993). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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). 파일 아이콘
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).
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