Atoms, bulk and surface

It is found by HRTEM analysis that (002) graphite planes are parallel to (111) planes of fee lattiees for most eatalyst partieles and fillings. Sometimes fee partieles were found oriented inside a nanotube in aecordanee with the following relationship (002)graphite II (002)n, ai- A Ni eatalyst partiele of octahedron shape, located inside carbon nanofiber is shown in Fig. 1. The [100] direction of the particle coincides with the longitudinal nanofiber axis. Faceted shape of the catalyst indicates that diffusion of carbon atoms (bulk and surface) takes place, because otherwise catalyst particles of spherical shape are usually supposed. Authors of [1,2] found other orientations of Ni particles inside carbon nanofibers in addition to the above mentioned [110] and [111]. 

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