Article,

Recognition of melting of nanoparticle catalysts with cubically shaped Co3O4 nanoparticles

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Journal of Colloid and Interface Science, 321 (2): 251--255 (May 15, 2008)
DOI: 10.1016/j.jcis.2008.02.040

Abstract

Cubically shaped cobalt oxide nanoparticle catalysts were used for the first time to investigate the melting of the nanoparticle catalysts responsible for the synthesis of silica nanocoils at 1050thin space°C and straight nanowires at 1100thin space°C. Cobalt nanoparticles remained morphologically highly anisotropic after the growth of nanocoils at 1050thin space°C, whereas they became predominately spherical after straight nanowires were made at 1100thin space°C. These results strongly indicated that cobalt nanoparticles responsible for the synthesis of straight nanowires were completely molten and that melting occurred to these nanoparticles between 1050 and 1100thin space°C.

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