Method for surface treatment of nickel particles with acid solution

摘要

Disclosed is a method for surface treatment of nickel particles using an acid solution, comprising mixing a weak acid with a buffer solution to prepare an acid solution having a pH of 2 to 5; mixing the acid solution with nickel particles; and filtering, washing and drying the mixed solution. Nickel particles treated by an embodiment of the method of present invention are free of impurities remaining on particle surfaces and thus have smooth surfaces and increased tap density, and use thereof may enable efficient production of a multi-layer ceramic capacitor (MLCC).