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http://dx.doi.org/10.4150/KPMI.2005.12.3.201

Size Control of Nickel Powders from Nickel Chloride Solution Containing Ammonia in DEA Solutions  

Choi Eun Young (School of Materials Science and Engineering, Busan National University)
Lee Yoon Bok (Research Center for Dielectric and Advanced Matter Physics, Busan National University)
Yoon Suk Young (School of Materials Science and Engineering, Busan National University)
Kim Kwang Ho (School of Materials Science and Engineering, Busan National University)
Kim Jin Chun (Materials Research Station, Korea Institute of Machinery and Materials)
Rhyim Young Mok (Materials Research Station, Korea Institute of Machinery and Materials)
Kim Hyong Kuk (Research Center for Dielectric and Advanced Matter Physics, Busan National University)
Kim Yang Do (School of Materials Science and Engineering, Busan National University)
Publication Information
Journal of Powder Materials / v.12, no.3, 2005 , pp. 201-207 More about this Journal
Abstract
Nickel powders were synthesized by the hydrazine reduction of nickel chloride solution containing ammonia in DEA solutions. The size distribution of nickel powders were investigated as a function of ammonia concentration, hydrazine concentration and the mixed composition ratio of diethanolammine (DEA) and triethanolammine (TEA). Nickel powders with the size in submicron range were obtained at $185^{\circ}C$ for 45 minutes by hydrazine reduction of nickel chloride solution in DEA solutions. The hydrazine concentrations showed significant effects on the particle size and shape distribution of nickel powders under $NH_3/Ni^{2+}$ molar ratio of 2.0 condition. As the mixed volume ratio of TEA and DEA increased, nickel powders with relatively larger particle size and low agglomeration were obtained. Nickel powders with particle size in the ranged from 0.4 to $0.9\;{\mu}m$ were obtained at the 50 $vol.%$ of TEA.
Keywords
Nickel powders; Ammonia; Diethanolammine; Triethanolammine;
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Times Cited By KSCI : 1  (Citation Analysis)
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