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(Color online) (a) A SEM image of the product, which shows many straight, smooth, and uniform nanorods; (b) a low-magnification TEM image of the product.
(Color online) (a) A low-magnification TEM image of one nanorod whose tip is a spherical-shaped metal particle. The inset image at the right corner is the enlarged image of a section of the nanorod. The inset image at the left down corner is the enlarge image of the spherical-shaped tip. (b) An EDS spectrum of the nanorod part which shows B, C, and Si peaks; (c) An EDS spectrum of the tip part which shows Ni, Co, B, C, and Si peaks.
(Color online) (a) A high-resolution TEM image of a nanorod. The inset is a fast Fourier transform diffraction pattern of the nanorod; (b) an EELS spectrum taken from the nanorod. The atomic ratio of this spectrum is determined to be approximately .
(Color online) A schematic illustration of the overall evolution of the growth of Si-doped nanorods via a solid-liquid-solid process.
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