Method for synthesizing air electrode powder for medium- and low-temperature solid oxide fuel cells by sol-gel method

摘要

In place of organic solvents, lanthanum nitrate, strontium nitrate, cobalt nitrate, and iron nitrate, which are water-synthesizeable and inexpensive, are used as metal precursors, and complex conditions such as hydrolysis conditions and pH are used to control particle shape. Provided is a method for synthesizing an air electrode powder by adjusting the addition molar ratio of the chelating agent and the esterification reaction accelerator and the synthesis temperature instead of the process control conditions. [Selection] Figure 1