Growth of Boron Nitride Nanohorn Structures

Abstract

Boron nitride (BN) nanohorns were fabricated, and their structures were investigated by transmission electron microscopy and molecular mechanics calculation. The multi-walled BN nanohorns would be stabilized by stacking of nanohorn structures. Growth of the BN nanohorn was observed at elevated temperatures, and the activation energy for the nanohorn growth was estimated to be 2.3 eV.

Syntheses, Structures and Properties of Boron Nitride Nanoparticles

“…10. Figure 10a , which agrees with the angle of 136 that is 37 inclined from the fivefold axis [11,24].…”

“…6. Activation energy of the nanoparticle growth was calculated to be 2.3 eV, which might be due to the lattice diffusion of boron and nitrogen atoms in BN [11].…”

Origin of Coproduced Boron Nitride and Carbon Helical Conical Fibers

“…One way to generate a polyhedral crystalline particle is via multiple twinning. This behavior is known to occur in h-BN. − The specific case of a 5-fold multiple twin with a common [201̅] axis and {112} twin planes, as shown in Figure , is relevant to the present study, given the above observations (Figures d and b). One of the five twin planes (purple arrow in Figure a) is defective: it contains like B–B or N–N bonds due to the incompatibility between 5-fold symmetry and the trigonal symmetry of BN graphene; such N–N or B–B bonds are energetically less favorable than B–N bonds, and this is reflected in the common presence of even-membered rings in BN nanostructures .…”

Carbon monoxide interactions with pure and doped B11XN12 (X = Mg, Ge, Ga) nano-clusters: a theoretical study

“…[13][14][15][16][17] During the last decade, various types of BN-based nanostructures consisting of nanotubes, nanohorns, nanoparticles, nanosheets, and nano-cages, have attracted considerable attention due to their unique chemical and physical properties. [18][19][20] B 12 N 12 is one of the known stable class of small III-V nano-clusters with the network of B-N bonds, which is energetically favorable. The 4-membered rings of B 12 N 12 consist of the B-N bonds, which result in angular strain in the network.…”