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Chun Dong Hyun Rhim Geun Bae Youn Min Hye Deviana Deviana Lee Ji Eun Park Ji Chan Jeong Heondo 《Topics in Catalysis》2020,63(9-10):793-809
Topics in Catalysis - Fischer–Tropsch synthesis (FTS) is a promising way to produce clean liquid fuels and high value-added chemicals from low-value carbon-containing resources such as coal,... 相似文献
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Lee Jin Hee Lee Hack-Keun Chun Dong Hyun Choi Hyunkyung Rhim Geun Bae Youn Min Hye Jeong Heondo Kang Shin Wook Yang Jung-Il Jung Heon Kim Chul Sung Park Ji Chan 《Nano Research》2019,12(10):2568-2575
Nano Research - Iron-based nanoparticles with uniform and high particle dispersion, which are supported on carbon structures, have been used for various applications. However, their preparation... 相似文献
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Yeojin Jeong Ji Yeon Kang Ilho Kim Heondo Jeong Jong Ki Park Jong Ho Park Ji Chul Jung 《Korean Journal of Chemical Engineering》2016,33(1):114-119
A polyol method was used to prepare Cu/ZnO catalysts for alcohol-assisted low temperature methanol synthesis from syngas. Unlike conventional low temperature methanol synthesis, ethanol was employed both as a solvent and a reaction intermediate. Catalyst characterization revealed that Cu/ZnO catalysts were successfully and efficiently prepared using the polyol method. Various preparation conditions such as PVP concentration and identity of ZnO precursor strongly influenced the catalytic activity of Cu/ZnO catalysts. Copper dispersion and catalyst morphology played key roles in determining the catalytic performance of the Cu/ZnO catalyst in alcohol-assisted low temperature methanol synthesis. A high copper dispersion and platelike Cu/ZnO structure led to high catalytic activity. Among the catalysts tested, 5_Cu/ZnO_Zn(Ac)2 had the best catalytic performance due to its high copper dispersion. 相似文献
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Hydrogen evolution performance of magnesium alanate prepared by a mechanochemical metathesis reaction method 总被引:1,自引:0,他引:1
Heondo Jeong Tae Hwan Kim Ko Yeon Choo In Kyu Song 《Korean Journal of Chemical Engineering》2008,25(2):268-272
Solvent-free magnesium alanates were prepared by a mechanochemical metathesis reaction method (ball milling method) with a
variation of milling time. For the purpose of comparison, magnesium alanate was also prepared by metathesis reaction method
in the presence of diethyl ether. The formation of magnesium alanate (Mg(AlH4)2) and magnesium alanate-diethyl ether (Mg(AlH4)2·Et2O) adduct was confirmed by XRD measurements. In both magnesium alanates, hydrogen evolution occurred in the first step decomposition.
The starting temperature for hydrogen evolution of the solvent-free magnesium alanates decreased with increasing milling time,
whereas the amount of hydrogen evolution of the solvent-free magnesium alanates increased with increasing milling time. The
maximum amount of hydrogen evolution of the Mg(AlH4)2·Et2O adduct was slightly larger than that of the solvent-free Mg(AlH4)2, but the starting temperature for hydrogen evolution of the Mg(AlH4)2·Et2O adduct was much higher than that of the solvent-free Mg(AlH4)2. The addition of a small amount of titanium to the solvent-free Mg(AlH4)2 greatly reduced the hydrogen evolution temperature of titanium-doped Mg(AlH4)2. However, the maximum amount of hydrogen evolution of the titanium-doped Mg(AlH4)2 was smaller than that of the solvent-free Mg(AlH4)2. 相似文献
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