title: Recognition of melting of nanoparticle catalysts with cubically shaped Co3O4 nanoparticles.
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 1050 degrees C and straight nanowires at 1100 degrees C. Cobalt nanoparticles remained morphologically highly anisotropic after the growth of nanocoils at 1050 degrees C, whereas they became predominately spherical after straight nanowires were made at 1100 degrees 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 1100 degrees C.
authors.affiliation: Department of Chemistry, University of California, Davis, CA 95616, USA.
authors.forename: Yongquan
authors.initials: Y
authors.lastname: Qu
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Masiel
authors.forename: Neal N
authors.initials: NN
authors.lastname: Cheng
authors.forename: Alexander M
authors.initials: AM
authors.lastname: Sutherland
authors.forename: Joshua D
authors.initials: JD
authors.lastname: Carter
authors.forename: Nigel D
authors.initials: ND
authors.lastname: Browning
authors.forename: Ting
authors.initials: T
authors.lastname: Guo