| Autor: |
Tokushige, M., Hongo, H., Nishikiori, T., Ito, Y. |
| Předmět: |
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| Zdroj: |
Journal of The Electrochemical Society; 2012, Vol. 159 Issue 1, pE5-E10, 6p |
| Abstrakt: |
Sm-Co intermetallic compound nanoparticles were obtained by utilizing plasma-induced cathodic discharge electrolysis in molten chloride electrolyte under a 1 atm Ar atmosphere. To form intermetallic nanoparticle, an electrochemical implantation method was adopted. Before conducting electrochemical implantation, we investigated the electrolytic condition to form Co nanoparticle to be used as a precursor. The size and crystal structure of the obtained Co nanoparticle strongly depended on the melt temperature. Hexagonal petaline ϵ-Co nanoparticles were obtained below 400°C, and spherical α-Co nanoparticles were obtained above 400°C. The size of the obtained spherical α-Co particle increased from 112 to 230 nm with increasing melt temperature. Using spherical α-Co nanoparticles, which were formed at 450°C in the melt by plasma-induced cathodic discharge electrolysis and piled-up on the Mo plate as a working electrode, SmCo2 and SmCo3 intermetallic nanoparticles were obtained by electrochemical implantation of Sm into α-Co nanoparticles. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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