Abstract: The present specification relates to hollow metal nano particles supported on a carrier.

Abstract: The present specification relates to a fuel cell and a method for manufacturing the same.

Abstract: The present specification relates to a hollow metal particle, an electrode catalyst including the same, an electrochemical battery including the electrode catalyst, and a method of manufacturing the hollow metal particle.

Abstract: The present application relates to a method for preparing a carbon carrier-metal nanoparticle composite and a carbon carrier-metal nanoparticle composite prepared thereby, and has an advantage in that it is possible to improve dispersibility and supporting ratio of metal nanoparticles with respect to a carbon carrier by efficiently supporting metal nanoparticles having a uniform size of several nanometers on evenly dispersed carbon carriers.

Abstract: The present application relates to a fuel cell and a method of manufacturing the same.

Abstract: The present specification relates to a metal nanoparticle.

Abstract: The present specification relates to a method for fabricating metal nanoparticles.

Abstract: The present specification relates to a hollow metal nanoparticle. Specifically, the present specification relates to a hollow metal nanoparticle having a cavity.

Abstract: The present specification relates to a metal nanoparticle. Specifically, the present specification relates to a metal nanoparticle having a cavity.

Abstract: The present application relates to a method for fabricating hollow nano particles supported on carrier.

Abstract: The present invention provides a method for fabricating core-shell particles supported on a carrier, the method including: forming a solution by adding a first metal supported on a carrier to a solvent; adjusting a pH of the solution from 7 to 14 and adding a metal salt of a second metal thereto; and forming core-shell particles by adding a reducing agent to the solution and forming a shell including the second metal on a surface of a core particle including the first metal, and core-shell particles fabricated by the method.

Abstract: The present specification relates to hollow metal nano particles supported on a carrier.

Abstract: The present application provides a method for fabricating hollow metal nano particles and hollow metal nano particles fabricated by the same.

Abstract: The present application provides a method for fabricating hollow metal nano particles and hollow metal nano particles fabricated by the same.

Abstract: The present application provides a method for fabricating core-shell particles, including: forming a first solution by adding a first metal salt and a first surfactant to a first solvent; forming core particles including a first metal included in the first metal salt by adding a first reducing agent to the first solution; forming a second solution by adding the core particles, a second metal salt, and a second surfactant to a second solvent; and forming core-shell particles by adding a second reducing agent to the second solution and forming shells on the surface of the core particle, in which the first surfactant and the second surfactant are polyoxyethylene, polyoxyethylene sorbitan monolaurate or polyoxyethylene oleyl ether, and core-shell particles fabricated by the method.

Abstract: The present application relates to hollow metal nano particles.

Abstract: The present application provides a method for fabricating hollow metal nano particles and hollow metal nano particles fabricated by the same.

Abstract: Disclosed is a method for preparing cerium carbonate that can prepare cerium carbonate having uniform crystal structure, shape and size with high productivity. The method for preparing cerium carbonate comprises: continuously introducing a reaction solution comprising cerium precursor and urea in a tubular reactor including an inlet, an outlet, and one or more reaction tubes through the inlet; reacting the cerium precursor with urea at an elevated temperature in the reaction tube; and, continuously discharging cerium carbonate formed by the reaction of the cerium precursor and urea to the outlet.

Abstract: The present invention relates to crystalline cerium oxide prepared in a simple, economical, and efficient manner, of which crystal structure, shape, and size can be easily adjusted and that exhibits excellent polishing properties, and a preparation method thereof. The crystalline cerium oxide can be prepared as sub-micron crystalline cerium oxide that has a mean volume diameter and a diameter standard deviation within a predetermined range.

Abstract: Disclosed is a method for preparing cerium carbonate that can improve yield or productivity of cerium carbonate and enables preparation of cerium carbonate having uniform diameter, cerium carbonate, and a method for preparing cerium oxide. The method for preparing cerium carbonate comprises mixing the cerium precursor with urea; and, elevating the temperature of the mixture to 50° C. or more in the absence of a separate reaction medium to react the cerium precursor with urea in the presence of a polymer dispersant.