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J. Korean Ceram. Soc. > Volume 40(5); 2003 > Article
Journal of the Korean Ceramic Society 2003;40(5): 488.
doi: https://doi.org/10.4191/kcers.2003.40.5.488
유기용매를 함유한 염화니켈 수용액으로부터 Ni 미분말 제조
최은영, 이상근, 이윤복, 문영태1, 김광호
부산대학교 재료공학부
1삼성전기(주) MLCC 기술팀
Preparation of Nickel Fine Powders from Aqueous Nickel Chloride Solution Containing Organic Solvents
ABSTRACT
Nickel fine powders were prepared from aqueous nickel chloride solution containing organic solvents and the effect of the addition of the organic solvent on the formation of nickel powders were investigated. All products were spherical particles in the range of 0.1∼1.0 $mutextrm{m}$ and the agglomeration of particles did not appear. In case of containing 40 vol% of 1-propanol, the particle size reduction and homogeneity of the powders were remarkable. The average particle size and the specific surface area of the powders produced with 40 vol% of 1-propanol were 0.3 $mutextrm{m}$ and 16.4 m$^2$/g respectively. The reduction reaction time by hydrazine decreased with increasing of the content of 1-propanol, and was 5 min for 40 vol% of 1-propanol. The oxidation of synthesized nickel powders occurred at 320$^{circ}C$ and weight loss at 300$^{circ}C$ was due to dehydration of Ni(OH)$_2$.
Key words: Nickel fine powders, Organic solvents, 1-Propanol, Size reduction, Homogeneity
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