75. Ji Man Kim, Shinae Jun and Ryong Ryoo Improvement of hydrothermal stability of mesoporous silica using salts: Reinvestigation for time-dependent effects J. Phys. Chem. B 103, 6200-6205 (1999). 파일 아이콘
74. Wha-Seung Ahn, Dong-Hwan Lee, Tae Jin Kim, Jong-Ho Kim, Gon Seo and Ryong Ryoo Post-synthetic preparations of titanium-containing mesopore molecular sieves Appl. Catal., A: Gen. 181, 39-49 (1999). 파일 아이콘
73. Sung June Cho, Sung Kyu Kang and Ryong Ryoo PdPt bimetallic cluster supported on KL zeolite probed with xenon adsorption measurement, EXAFS/XANES and n-butane hydrogenolysis Stud. Surf. Sci. Catal. 121, 295-300 (1999).
72. Mi Jeong Kim and Ryong Ryoo Synthesis and pore size control of cubic mesoporous silica SBA-1 Chem. Mater. 11, 487-491 (1999). 파일 아이콘
71. Anna Carlsson, Mizue Kaneda, Yasuhiro Sakamoto, Osamu Terasaki, Ryong Ryoo and Sang Hoon Joo The structure of MCM-48 determined by electron crystallography J. Electron Microsc. 48, 795-798 (1999). 파일 아이콘
70. Mietek Jaroniec, Christopher Jaroniec, Michal Kruk and Ryong Ryoo Adsorption and thermogravimetric methods for monitoring surface and structural changes in ordered mesoporous silicas induced by their chemical modification Adsorption 5, 313-317 (1999). 파일 아이콘
69. Gon Seo, Tae Jin Kim, Samkook Lim, Chang Hyun Ko and Ryong Ryoo The reduction of dissolved oxygen by hydrazine over platinum catalyst supported on disordered mesoporous materials Korean J. Chem. Eng. 15, 611-614 (1998). 파일 아이콘
68. Ryong Ryoo, Ji Man Kim and Chang Hyun Ko Improvement of structural integrity of mesoporous molecular sieves for practical applications Stud. Surf. Sci. Catal. 117, 151-158 (1998). 파일 아이콘
67. Chang Hyun Ko, Ji Man Kim and Ryong Ryoo Mesocrystal engineering using non-bonded interaction to obtain optically transparent mesoporous silica films and plates with uniform orientation Micropor. Mesopor. Mater. 21, 235-243 (1998). 파일 아이콘
66. Ihl Hyun Cho, Seung Bin Park, Sung June Cho and Ryong Ryoo Investigation of Pt/γ-Al2O3 catalysts prepared by sol-gel method: XAFS and ethane hydrogenolysis J. Catal. 173, 295-303 (1998). 파일 아이콘
65. Ji Man Kim, Seong Kyun Kim and Ryong Ryoo Synthesis of MCM-48 single crystals Chem. Commun. , 259-260 (1998). 파일 아이콘
64. Ryong Ryoo, Chang Hyun Ko, Sung June Cho and Ji Man Kim Optically transparent, single-crystal-like oriented mesoporous silica films and plates J. Phys. Chem. B 101, 10610-10613 (1997). 파일 아이콘
63. Ryong Ryoo, Shinae Jun, Ji Man Kim and Mi Jeong Kim Generalised route to the preparation of mesoporous metallosilicates via post-synthetic metal implantation Chem. Commun. , 2225-2226 (1997). 파일 아이콘
62. Michal Kruk, Mietek Jaroniec, Ryong Ryoo and Ji Man Kim Monitoring of the structure of siliceous mesoporous molecular sieves tailored using different synthesis conditions Micropor. Mater. 12, 93-106 (1997). 파일 아이콘
61. Ji Man Kim, Chae Ho Shin and Ryong Ryoo Mesoporous molecular sieve with binary transition metal (Zr-Cr) oxide framework Catal. Today 38, 221-226 (1997). 파일 아이콘
60. Ryong Ryoo, Chang Hyun Ko and Russell F. Howe Imaging the distribution of framework aluminum in mesoporous molecular sieve MCM-41 Chem. Mater. 9, 1607-1613 (1997). 파일 아이콘
59. Ryong Ryoo, Ji Man Kim, Chae Ho Shin and Jeong Yong Lee Synthesis and hydrothermal stability of a disordered mesoporous molecular sieve Stud. Surf. Sci. Catal. 105, 45-52 (1997).
58. Ihl Hyun Cho, Ja Hun Kwak, Ryong Ryoo, Wha-Seung Ahn, Kyeong Youl Jung and Seung Bin Park Photocatalytic decomposition of trichloroethylene over aluminosilicate zeolites with isomorphous incorporation of titanium Stud. Surf. Sci. Catal. 105, 1617-1623 (1997).
57. Ryong Ryoo and Shinae Jun Improvement of hydrothermal stability of MCM-41 using salt effects during the crystallization process J. Phys. Chem. B 101, 317-320 (1997). 파일 아이콘
56. Chang Hyun Ko and Ryong Ryoo Imaging the channels in mesoporous molecular sieves with platinum Chem. Commun. , 2467-2468 (1996). 파일 아이콘
55. Deepak Bansilal Akolekar and Ryong Ryoo Titanium incorporated ATS and AFI type aluminophosphate molecular sieves J. Chem. Soc., Faraday Trans. 92, 4617-4621 (1996). 파일 아이콘
54. Ryong Ryoo, Ji Man Kim, Chang Hyun Ko and Chae Ho Shin Disordered molecular sieve with branched mesoporous channel network J. Phys. Chem. 100, 17718-17721 (1996). 파일 아이콘
53. Sung June Cho, Wha-Seung Ahn, Suk Bong Hong and Ryong Ryoo Investigation of the platinum cluster size and location on zeolite KL with 129Xe NMR, XAFS, and xenon adsorption J. Phys. Chem. 100, 4996-5003 (1996). 파일 아이콘
52. Ja Hun Kwak, Sung June Cho and Ryong Ryoo A new synthesis procedure for titanium-containing zeolites under strong alkaline conditions and the catalytic activity for partial oxidation and photocatalytic decomposition Catal. Lett. 37, 217-221 (1996). 파일 아이콘
51. Ryong Ryoo, Chang Hyun Ko, Ji Man Kim and Russell F. Howe Preparation of nanosize Pt clusters using ion exchange of Pt(NH3)42+ inside mesoporous channel of MCM-41 Catal. Lett. 37, 29-33 (1996). 파일 아이콘
50. Ji Man Kim and Ryong Ryoo Disintegration of mesoporous structures of MCM-41 and MCM-48 in water Bull. Korean Chem. Soc. 17, 66-68 (1996). 파일 아이콘
49. Ji Man Kim, Ja Hun Kwak, Shinae Jun and Ryong Ryoo Ion exchange and thermal-stability of MCM-41 J. Phys. Chem. 99, 16742-16747 (1995). 파일 아이콘
48. Bert M. Weckhuysen, Robert A. Schoonheydt, Jin-Mirn Jehng, Israel E. Wachs, Sung June Cho, Ryong Ryoo, Sjoerd Kijlstra and Eduard Poels Combined DRS-RS-EXAFS-XANES-TPR Study of supported chromium catalysts J. Chem. Soc., Faraday Trans. 91, 3245-3253 (1995). 파일 아이콘
47. Joong-Whan Lee, Sang-Hwan Lee, Hyung-Joun Yoo, Mu Shik Jhon and Ryong Ryoo Annealing effects in hydrogenated silicon nitride films during high energy ion beam irradiation J. Electrochem. Soc. 142, 3210-3214 (1995). 파일 아이콘
46. J.-G. Kim, L.-C. de Ménorval, R. Ryoo and F. Figueras 129Xe-NMR study of the zeolite microporosity using a blocking agent to avoid the interparticle xenon diffusion Stud. Surf. Sci. Catal. 94, 226-231 (1995). 파일 아이콘
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