Abstract:
An exhaust gas decomposition apparatus or system that includes a bioreactor fluorine-containing compound is decomposed by contact with the first and second fluids in the bioreactor. The first fluid is supplied through a bioreactor inlet and is exhausted through the bioreactor outlet, and moves in a first direction in the bioreactor. The first or second fluid includes a biological catalyst such as an enzyme or recombinant microbe, while the other fluid includes a fluorine-containing compound. As a result, the fluorine-compounds is efficiently biologically remediated by the biological catalyst.
Abstract:
Provided are a genus Gluconacetobacter microorganism having enhanced cellulose productivity, a method of producing cellulose using the same, and a method of producing the microorganism.
Abstract:
A method of producing a cellulose nonwoven fabric, a cellulose nonwoven fabric produced thereby, and a secondary ion battery including the same, wherein the method includes passing a cellulose suspension with microbial cellulose and a water-soluble cellulose disintegrating agent in a medium through an orifice of a high-pressure homogenizer to obtain a cellulose dispersion and removing the medium from the obtained cellulose dispersion to form the nonwoven fabric.
Abstract:
A composite cathode active material includes: a first metal oxide including a plurality of layered crystalline phases comprising a first layered crystalline phase and a second layered crystalline phase, wherein the first and second layered crystalline phases have a different compositions than each other, and a second metal oxide different from the first metal oxide and including a composite crystalline phase, that is different from the first metal oxide, wherein the second metal oxide is represented by Formula 1, wherein at least a portion of the second metal oxide is disposed on a first layered crystalline phase of the plurality of layered crystalline phases of the first metal oxide, and wherein the first layer crystalline phase is in a space group of R-3m: LixMyOz Formula 1 wherein, in Formula 1, 0≦x≦3, 1≦y≦3, and 2≦z≦8, and M is at least one selected from a Group 4 element to a Group 13 element.
Abstract:
Provided is a recombinant microorganism including an exogenous gene encoding a bacterial cytochrome P450 protein or a variant thereof, a composition including the recombinant P450 protein or the variant thereof, which is used for removing CHnF4-n (n is an integer of 0 to 3) in a sample, and a method of reducing a concentration of CHnF4-n in the sample.
Abstract:
A composite positive electrode active material includes: a first metal oxide that has a layered structure and is represented by Formula 1; and a second metal oxide that has a spinel structure and is represented by Formula 2, wherein the composite positive electrode active material includes a composite of the first metal oxide and the second metal oxide: LiMO2 Formula 1 LiMe2O4 Formula 2 wherein, in Formulas 1 and 2, M and Me are each independently at least one element selected from Groups 2 to 14 of the periodic table, and a molar ratio of Li/(M+Me) in the composite is less than 1.
Abstract:
A composite positive electrode active material including: an overlithiated layered oxide (OLO) including vanadium (V) and magnesium (Mg), wherein the vanadium and magnesium have a molar ratio of about 1:2. Also a method of manufacturing the composite positive electrode active material, a positive electrode including the composite positive electrode, and a lithium battery including the positive electrode.
Abstract:
Provided is a recombinant microorganism comprising an exogenous pyruvate dehydrogenase E1 protein, and/or increased expression of alpha-ketoglutarate dehydrogenase E1.
Abstract:
A genetically engineered bacteria cell having an enhanced activity of GlnD or GlnK, and a method of producing succinic acid by using the genetically engineered bacteria cell are provided.
Abstract:
An electrolyte for a lithium secondary battery including a lithium salt, a non-aqueous organic solvent, and a pyrrolidine derivative represented by Formula 1, wherein, in Formula 1, X is hydrogen, a formyl group or a salt thereof, a carboxyl group or a salt thereof, a C1-C20 alkyl group, a C1-C20 hydroxyalkyl group, a C1-C20 aminoalkyl group, a C1-C20 thioalkyl group, or a C1-C20 cyanoalkyl group, and R1 to R4 are each independently hydrogen, deuterium, a halogen atom, a hydroxyl group, a thio group, a cyano group, a nitro group, an amino group, an amidino group, a hydrazine, a hydrazone, a formyl group or a salt thereof, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, a C1-C20 hydroxyalkyl group, a C2-C20 heteroaryl group, or a C6-C20 aryl group.