This analysis demonstrates optimized variables produce high-purity nickel nanopowders for MLCC applications, indicating a cost-effective alternative to existing methods.
Nickel nanopowders, known for their excellent electrical conductivity and oxidation resistance, are essential in industries such as electronics and energy storage. As internal electrode materials in MLCCs (multilayer ceramic capacitors), they play a key role in achieving high capacity and miniaturization. Conventional processes like PVD and CVD produce high-purity nickel powders but face challenges such as broad particle size distribution and high production costs. Wet chemistry offers a cost-effective and efficient alternative, enabling precise particle size control and reduced agglomeration. This study optimized key process variables, including reducing agents, additives, and precursor concentrations, to evaluate their effects on particle size, purity, and carbon content. The synthesized nanopowders were characterized using SEM, PSA, XRD, and ICP-OES. Results confirmed the feasibility of producing high-purity and low-carbon nickel nanopowders suitable for MLCC applications.
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Lee et al. (2025) studied this question.
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