Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Un-Yeon Hwang"'
Publikováno v:
Transactions of the Korean hydrogen and new energy society. 25:344-354
>> Activated charcoal supported nickel molybdenum carbide (carburized Ni-Mo/AC) catalysts were prepared by wet-impregnation followed by temperature-programmed carburization using 20% CH 4 /H 2 gas. The effects of pH and initial Ni/Mo mole ratio durin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a705cf53e5bd86c520dec393925013c7
https://doi.org/10.7316/khnes.2014.25.4.344
https://doi.org/10.7316/khnes.2014.25.4.344
Publikováno v:
Journal of the American Ceramic Society. Dec2004, Vol. 87 Issue 12, p2168-2174. 7p.
Publikováno v:
Hydrometallurgy. 96:223-229
A kinetic study of dissolution reaction of Al can was conducted for the synthesis of aluminum sec-butoxide (ASB). With the Al can scraps and sec-butyl alcohol (SBA) as reactants, the reaction was examined at the condition of 3 mol SBA/mol Al of stoic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::843af4cf51f68711619ce67418e16f3c
https://doi.org/10.1016/j.hydromet.2008.10.011
https://doi.org/10.1016/j.hydromet.2008.10.011
Autor:
Se-Il Lee, Dong-Heui Kwak, Jin-Geol Kim, Ho-Sung Yoon, Heung-Jo Jung, Hee Dong Jang, Seung-Joon Yoo, Un-Yeon Hwang, Jae-Wook Lee
Publikováno v:
Korean Journal of Chemical Engineering. 26:281-284
Aluminum sec-butoxide (ASB) was synthesized to a high purity grade from Al dross through dissolution reaction and vacuum distillation under the condition of 3 mol C4H9OH/mol Al as a stoichiometric reactant ratio and 10−3 mol HgI2/mol Al as a cataly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f6bda21551aee2744a928c86e8c9fd5
https://doi.org/10.1007/s11814-009-0048-3
https://doi.org/10.1007/s11814-009-0048-3
Autor:
Jae-Wook Lee, Kyung-Jun Hwang, Jong-Ok Kim, Kwang-Gil Kim, Se-Il Lee, Dong-Heui Kwak, Hyung-Sang Park, Un-Yeon Hwang, Seung-Joon Yoo
Publikováno v:
Korean Journal of Chemical Engineering. 25:1232-1238
Nanosized TiO2 sol synthesized by sol-gel method was successfully coated on the porous red clay tile (PRC tile) with micrometer sized pores. PRC tile was first coated with a low-firing glaze (glaze-coated PRC tile) and then TiO2 sol was coated on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2a5f866ae9094b2b64740a4995becd1
https://doi.org/10.1007/s11814-008-0204-1
https://doi.org/10.1007/s11814-008-0204-1
Publikováno v:
Journal of the American Ceramic Society. 87:2168-2174
The synthesis of spherical BaTiO3 particles was attempted by a new technique, the “gel–sol method,” at 45°C. The (Ba–Ti) gel used as a starting material was prepared by aging mixtures of titanyl acylate with a barium acetate aqueous solution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18b81c6254c409f0642c1f57b9094204
https://doi.org/10.1111/j.1151-2916.2004.tb07486.x
https://doi.org/10.1111/j.1151-2916.2004.tb07486.x
Publikováno v:
Industrial & Engineering Chemistry Research. 43:3141-3150
Fine spherical premullite particles were prepared by employing partial hydrolysis to control the difference in reaction rate of two alkoxides and by controlling the solvent composition, considering the difference in solubility of the double alkoxide.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::975079e2b267bf2a41d4bcd705cecb84
https://doi.org/10.1021/ie0209071
https://doi.org/10.1021/ie0209071
Publikováno v:
Industrial & Engineering Chemistry Research. 43:728-734
The behavior of Ba and Ti sources in the reaction mixture during the formation of crystalline barium titanate (BaTiO3) powders from titanium isopropyl alkoxide (TIP)/acetic acid/barium acetate/KOH solutions has been investigated. From Fourier transfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a47e2c425feb06f9bf5bfe6127527309
https://doi.org/10.1021/ie030276q
https://doi.org/10.1021/ie030276q
Publikováno v:
Materials Letters. 57:2201-2207
Nano-crystalline BaTiO 3 powders were prepared using acylated titanium and barium acetate with hydrothermal method. The solution pH given by the molar ratio of KOH to Ti-isopropoxide was found to have an important effect on the size, morphology, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04fa3ad719c95c661a29d75046706054
https://doi.org/10.1016/s0167-577x(02)01174-6
https://doi.org/10.1016/s0167-577x(02)01174-6
Autor:
Hyung-Sang Park, Dal-Ryung Park, Seung-Joon Yoo, Ho-Sung Yoon, Un-Yeon Hwang, Hee-Dong Jang, Jung-Woon Lee
Publikováno v:
Korean Journal of Chemical Engineering. 17:438-443
γ-AlO(OH) sol solution was prepared by aluminum isopropoxide as an initial material. γ-Al2O3 membrane on the α-Al2O3 support was continuously made through coating and thermal treatment from the α-AlO(OH) sol. Previous work [Yoo et al., 1997] has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ce223b2d4426056c391abdac55acfcb
https://doi.org/10.1007/bf02706857
https://doi.org/10.1007/bf02706857