全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Jooyoung Chung , Jinju Kim ...
来源:[J].Tetrahedron Letters(IF 2.397), 2013, Vol.54 (38), pp.5192-5196Elsevier
摘要:Abstract(#br)We have developed a convenient Pd–Fe 3 O 4 heterodimeric nanocrystal catalyst system for Heck and Sonogashira reactions. This catalyst offers an environment-friendly, atom-efficient, and robust catalytic system for both reactions. Furthermore the nanocrystal cat...
作者:Jooyoung Chung , Jihyun Myoung ...
来源:[J].Journal of Physics and Chemistry of Solids(IF 1.527), 2012, Vol.73 (4), pp.535-539Elsevier
摘要:Abstract(#br)Thin ZnSe layers were deposited on ZnO nanowires by a novel successive ionic layer adsorption and reaction technique in order to solve recombination problems in ZnO nanowire-based dye-sensitized solar cells (DSSCs). Cell efficiency increased from 0.1 to 1.3–1.4%...
作者:Jooyoung Chung , Sang Moon Byun ...
来源:[J].Tetrahedron(IF 2.803), 2013, Vol.69 (27-28), pp.5660-5664Elsevier
摘要:Abstract(#br)The direct C–H arylation of a heteroarene with aryl bromides has been achieved under the catalysis of magnetic nanoparticles. In the presence of bimetallic Pd–Fe 3 O 4 heterodimer nanocrystals (1 mol % in palladium), the reaction of imidazo[1,2- a ]pyridine with...
作者:Jooyoung Chung , Juneyoung Lee , Sangwoo Lim
来源:[J].Physica B: Physics of Condensed Matter(IF 1.327), 2010, Vol.405 (11), pp.2593-2598Elsevier
摘要:Abstract(#br)Dye-sensitized solar cells (DSSCs) were fabricated using ZnO nanorod arrays vertically grown on fluorine-doped tin oxide (FTO) glass using a low-temperature hydrothermal method. When the ZnO seed layer was annealed, greater DSSC efficiency was obtained. This may be a...
作者:Seyoung Kim , Jooyoung Chung , B. Moon Kim
来源:[J].Tetrahedron Letters(IF 2.397), 2011, Vol.52 (12), pp.1363-1367Elsevier
摘要:Abstract(#br)A new chemoentrapment strategy for recycling osmium in the catalytic olefin cleavage reaction is reported. The new strategy utilizes KOH/ i -PrOH to generate water-soluble Os(VI) species as a recyclable metal catalyst after the oxidative cleavage reaction. For t...
作者:Juneyoung Lee , Jooyoung Chung , Sangwoo Lim
来源:[J].Physica E: Low-dimensional Systems and Nanostructures(IF 1.522), 2010, Vol.42 (8), pp.2143-2146Elsevier
摘要:Abstract(#br)Well aligned zinc oxide (ZnO) nanorods were synthesized on a Si substrate with a hydrothermal method. The effects of annealing on the optical properties of ZnO nanorods were examined by annealing samples in oxygen or forming gas (H 2 :N 2 =1:9). The optical propertie...
作者:Jooyoung Chung , Juneyoung Lee ...
来源:[J].Journal of Physics and Chemistry of Solids(IF 1.527), 2011, Vol.72 (12), pp.1548-1553Elsevier
摘要:Abstract(#br)ZnO nanospheres were successfully synthesized by a hydrothermal process (S1 sample) and a wet-chemical method (S2 sample). Following synthesis, calcination treatment at 450 °C was performed for the sample prepared by the wet-chemical method (S3 sample). All of t...
作者:... Juneyoung Lee , Jooyoung Chung , Sangwoo Lim
来源:[J].Journal of Physics and Chemistry of Solids(IF 1.527), 2010, Vol.71 (12), pp.1724-1731Elsevier
摘要:Abstract(#br)The current study investigates the performance of dye-sensitized solar cells (DSSCs) based on Al-doped and undoped ZnO nanorod arrays synthesized by a simple hydrothermal method. Current density–voltage ( J–V ) characterizations indicate that Al-doping in ZnO cr...

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