NICKEL DOPED METAL OXIDE OF PEROVSKITE STRUCTURE AND METHOD OF MANUFACTURING THE SAME AND CATALYST FOR HIGH TEMPERATURE MEMBRANE REACTOR USING THE SAME

摘要

High temperature stability of anodes for solid oxide fuel cells as it has excellent catalytic ability and excellent thermal stability by inducing metal nickel to be deposited on the metal oxide of the A-site deficient structure at high temperature, forming metal nickel on the surface of the metal oxide Disclosed is a method for preparing a high-temperature stable nano-nickel particle catalyst for a membrane reactor through composition control and post-treatment of a nickel-doped perovskite metal oxide that can be used as a membrane reactor requiring The method for manufacturing a nickel-doped perovskite structure metal oxide according to the present invention comprises the steps of: (a) dissolving a lanthanum precursor, a strontium precursor, a titanium precursor, and a nickel precursor in a solvent and heating while irradiating ultrasonic waves to form a mixture; (b) calcining the mixture and then pulverizing to form a pellet; (c) sintering the pellets to form a sintered body; And (d) subjecting the sintered body to reduction heat treatment in a reducing atmosphere to deposit nickel contained in the sintered body onto the surface of the sintered body to form a nickel-doped metal oxide.