Abstract

Homogeneous or heterogeneous multi‐walled nanotubes composed of B, C and N atoms were prepared through high‐temperature chemical reactions (1700–2000 K) between C (or CNx) nanotubes, boron oxide and nitrogen. Morphology, helicity, chemical composition and atomic species distribution in nanotubes were studied using field emission 300 kV transmission electron microscopes (TEM) JEOL‐3000F equipped with a Gatan 766 Electron energy loss detector and JEOL‐3100FEF equipped with an Omega Filter. Transport and field emission properties of nanotubes were studied using a low energy electron point source microscope.

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