Abstract:
이차전지양극소재용복합체, 그제조방법, 및이를포함하는리튬이차전지가제공된다. 이차전지양극소재용복합체는탄소입자, 및일반식 AD로표현되고, 탄소입자의표면에분산되어있는전하캐리어이온화합물입자를포함하는전하캐리어이온화합물-탄소복합체와, 일반식 MR로표현되는전이금속화합물을포함한다. 위일반식 AD과 MR에서 A, D, M, R, 및 x, y, z, w 는각각발명의상세한설명에기재되어있다.
Abstract:
The present invention relates to a method for manufacturing a multi-metallic oxide nanoparticle having a hollow structure. More specifically, the present invention relates to a method for manufacturing a multi-metallic oxide nanoparticle which includes the step of heating a mixture of a first transition metal oxide nanoparticle, a second transition metal salt, water, and a surfactant under an acidic composition, and having the standard reduction potential of the first transition metal oxide nanoparticle to be higher than the standard reduction potential of the second transition metal ion.
Abstract:
PURPOSE: A surface-modified tantalum oxide nanoparticle and a contrast agent for X-ray CT and a high dielectric thin film using the same are provided to continuously perform microemulsion preparation to surface modification in a single reactor. CONSTITUTION: A method for preparing a surface-modified tantalum nanoparticle comprises: a step of adding an aqueous phase containing water to an organic solvent containing a surfactant and preparing a water-in-oil microemulsion; a step of introducing a tantalum precursor to the microemulsion; a step of adding a surface modifier containing an organic silane group or a phosphine group; a step of removing the organic solvent; and a step of isolating the surface-modified tantalum oxide nanoparticles.
Abstract:
PURPOSE: A transition metal oxide/tantalum oxide core/shell nanoparticle is provided to be used as an X-ray CT contrast agent and an MRI T2 contrast agent by combining a biocompatible molecule or ligand on the surface of a tantalum oxide shell. CONSTITUTION: A core/shell nanoparticle comprises a transition metal oxide core and a tantalum oxide shell. The transition metal oxide is selected from ferric oxide, manganese oxide, ceria, titanium oxide, nickel oxide, cobalt oxide, and zinc oxide. The size of the transition metal oxide is 1-100 nm, and the thickness of the tantalum oxide shell is 1-50 nm. A silane group or a phosphine group is combined to the surface of the tantalum oxide shell, and a functional material is combined to the silane group or the phosphine group. The functional material is selected from a biocompatible material, organic dye, a bioactive material, a functional group, an organic molecule, organic metal, a nanoparticle, a shell structure, or a combination thereof.