chapter  16
Chemical Functionalization and Composites of Boron Nitride Nanotubes
ByWenjun Meng, Chunyi Zhi
Pages 24

Boron nitride is an inorganic compound with a chemical formula BN, consisting of equal numbers of boron and nitrogen atoms. BN exists in various crystalline forms; among them, the hexagonal form is the most stable and softest. Boron nitride nanotubes (BNNTs) can be seen as a rolled graphite-like BN sheet, in a fashion shown in Figure 16.1 (Golberg et al., 2010). As a structural

16.1 Introduction 441 16.2 Fabrication 444

16.2.1 Arc Discharge 444 16.2.2 Template Synthesis 445 16.2.3 Ball-Milling 445 16.2.4 Autoclave 445 16.2.5 Laser Ablation 446 16.2.6 Chemical Vapor Deposition 446 16.2.7 Plasma-Jet Method 448 16.2.8 Purication 448

16.3 Modication 448 16.3.1 Doping 448 16.3.2 Filling 451

16.3.2.1 Cluster Filling 451 16.3.2.2 Wire Filling 452

16.3.3 Nanoparticle Decoration 452 16.3.4 Covalent Bonding 454 16.3.5 Weak Interactions 455

16.4 BNNT Used as Nanollers for Composites 457 16.4.1 Polymeric BNNT Composites 457 16.4.2 Ceramic BNNT Composites 458

16.5 Summary 458 References 458

analogue of carbon nanotubes (CNTs) (Iijima, 1991), the BNNTs were rst predicted theoretically in 1994 (Blase et al., 1994; Rubio et al., 1994); since then, BNNTs have become one of the most intriguing non-CNTs.