摘要:
An organometallic complex for a light emitting layer includes a heterocyclic ligand and a bivalent metal bonded to the heterocyclic ligand, wherein the heterocyclic ligand includes a plurality of linked ring structures that include a total of at least 17 carbon atoms and 1 heteroatom, and the linked ring structures have substantially parallel planes.
摘要:
An organometallic complex for an organic light emitting device represented by formula 1, a method of preparing the same and an organic light emitting device including the same: where R1 through R16 are a hydrogen atom, a cyano group, a hydroxyl group, a nitro group, a halogen atom, a C1-C20 alkyl group, a C1-C20 alkoxy group, a C6-C20 aryl group, a C7-C20 arylalkyl group, a C2-C20 alkylalkoxy group, a C7-C20 arylalkoxy group, a C6-C20 arylamino group, a C1-C20 alkylamino group, a C6-C20 heteroarylamino group, and a C2-C20 hetero-ring group; and M is a bivalent metal such as Be, Mg, Zn, Ca, Cr, Fe, Co, Ni and Cu. The compound represented by Formula 1 can be effectively used in an electron transport layer or an electron injection layer. An organic light emitting device including the compound represented by Formula 1 can thus have long lifetime.
摘要:
The present disclosure relates to a catalyst having metal catalyst nanoparticles supported on natural cellulose fibers and a method of preparing the same, whereby natural cellulose fibers are subjected to specific pretreatment to increase a surface area and form defects on the surface thereof and metal catalyst nanoparticles are then supported on the cellulose catalyst support in a highly dispersed state, thereby providing improved catalysis while allowing production of the catalyst at low cost. The catalyst may be utilized for various catalytic reactions.
摘要:
A method of preparing a catalyst using an alkali metal or an alkaline earth metal in natural cellulose fibers as a co-catalyst and a dispersant. The catalyst is prepared using an alkali metal or an alkaline earth metal as a co-catalyst and a dispersant, thus increasing the dispersibility of catalytic components and enhancing the interactions between the catalyst and the support to thereby retard agglomeration and increase the durability of the catalyst.
摘要:
A platinum-based nano catalyst supported carbon nano tube electrode and a manufacturing method thereof, more particularly to a manufacturing method of a carbon nano tube electrode and a carbon nano tube electrode supported with the platinum-based catalyst by growing the carbon nano tube on the surface of the carbon paper and using a CVD method on the surface of the carbon nano tube. By growing the carbon nano tube directly, the broad surface area and excellent electric conductivity of the carbon nano tube can be utilized maximally, and especially, the nano catalyst particles with minute sizes on the surface of the carbon nano tube by using the CVD method as a supporting method of the platinum-based catalyst on the surface of the carbon nano tube, the amount of the platinum can be minimized and still shows an efficient catalyst effect and by improving the catalyst activity by increasing the distribution, so academic and industrial application in the future is highly expected.
摘要:
A cyclic referencing management method and apparatus, a parsing method and apparatus, and a computer readable recording medium storing a program to implement the methods are provided. The method for managing cyclic referencing that may occur by mutual references of assets in a file provided to control assets in a multimedia application environment, includes: detecting an asset generating cyclic referencing; and ignoring the asset generating cycling referencing. According to the methods and apparatuses, cyclic referencing that can occur in a file to control assets can be detected and processed such that the system can be prevented from entering an indefinite loop or causing an erroneous operation.
摘要:
The present disclosure relates to a catalyst having metal catalyst nanoparticles supported on natural cellulose fibers and a method of preparing the same, whereby natural cellulose fibers are subjected to specific pretreatment to increase a surface area and form defects on the surface thereof and metal catalyst nanoparticles are then supported on the cellulose catalyst support in a highly dispersed state, thereby providing improved catalysis while allowing production of the catalyst at low cost. The catalyst may be utilized for various catalytic reactions.
摘要:
A method of preparing a catalyst using an alkali metal or an alkaline earth metal in natural cellulose fibers as a co-catalyst and a dispersant. The catalyst is prepared using an alkali metal or an alkaline earth metal as a co-catalyst and a dispersant, thus increasing the dispersibility of catalytic components and enhancing the interactions between the catalyst and the support to thereby retard agglomeration and increase the durability of the catalyst.
摘要:
A platinum-based nano catalyst supported carbon nano tube electrode and a manufacturing method thereof, more particularly to a manufacturing method of a carbon nano tube electrode and a carbon nano tube electrode supported with the platinum-based catalyst by growing the carbon nano tube on the surface of the carbon paper and using a CVD method on the surface of the carbon nano tube. By growing the carbon nano tube directly, the broad surface area and excellent electric conductivity of the carbon nano tube can be utilized maximally, and especially, the nano catalyst particles with minute sizes on the surface of the carbon nano tube by using the CVD method as a supporting method of the platinum-based catalyst on the surface of the carbon nano tube, the amount of the platinum can be minimized and still shows an efficient catalyst effect and by improving the catalyst activity by increasing the distribution, so academic and industrial application in the future is highly expected.