METHOD OF MANUFACTURING ANODE CORE-SHELL COMPLEX FOR SOLID OXIDE FUEL CELL USING HYDRAZINE REDUCING AGENT AND SURFACTANT

摘要

Provided is a method of manufacturing an anode core-shell complex for a solid oxide fuel cell, including (A) manufacturing a stabilized zirconia (YSZ) sol by using zirconium hydroxide (Zr(OH)4) and yttrium nitrate (Y(NO3)3.6H2O) as a starting material and distilled water as a solvent by a hydrothermal method, (B) agitating nickel chloride, stabilized zirconia in a sol state, and a surfactant, (C) adding sodium hydroxide (NaOH), (D) adjusting a pH to a range of 6 to 8, and (E) sintering the nickel-stabilized zirconia core-shell powder.

主权项

1. A method of manufacturing an anode core-shell complex for a solid oxide fuel cell, comprising:
manufacturing a stabilized zirconia (YSZ) sol by using zirconium hydroxide (Zr(OH)4) and yttrium nitrate (Y(NO3)3.6H2O) as a starting material and distilled water as a solvent by a hydrothermal method; agitating nickel chloride, stabilized zirconia in a sol state, and a surfactant to uniformly mix nickel chloride, stabilized zirconia, and the surfactant, such that the surfactant having a polymer structure surrounds particles of a nickel precursor generated when hydrazine (N2H4) is added and stabilized zirconia due to electrostatic attractive force to prevent the particles from being agglomerated and uniformly disperse the particles; adding sodium hydroxide (NaOH) to chain-adsorb hydrophobic chain groups due to attractive force of the hydrophobic chain groups of the surfactant adsorbed on surfaces of the nickel precursor and stabilized zirconia and to attach nickel precipitated from the nickel precursor and uniformly distributed and stabilized zirconia; adjusting a pH to a range of 6 to 8 and performing agitation for 4 to 12 hours to reinforce an adsorption ability of the hydrophobic chain groups of the surfactant to manufacture a nickel/stabilized zirconia core-shell complex having a dense structure; and manufacturing a nickel-stabilized zirconia core-shell powder into pellets and then sintering the nickel-stabilized zirconia core-shell powder at high temperatures.