Boron nitride nanotubes grown on stainless steel from a mixture of diboron trioxide and boron

• Published in: Chemical physics letters Vol. 687; pp. 307 - 311
• Main Authors: E, Songfeng, Long, Xiaoyang, Li, Chaowei, Geng, Renjie, Han, Dongbo, Lu, Weibang, Yao, Yagang
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2017
• Subjects: B2O3; Boron nitride nanotubes; Growth mechanism; Synthesis; B2O3; Synthesis; Boron nitride nanotubes; Growth mechanism
• ISSN: 0009-2614; 1873-4448
• DOI: 10.1016/j.cplett.2017.09.041

BNNTs are synthesized by the nitridation of the mixture of B2O3 and boron with stainless steel as a catalyst. [Display omitted] •BNNTs can be synthesized by nitridation of the mixture of B2O3 and boron.•The B2O3/B precursor can avoid the introduction of metal impurities.•The concentration of B2O3 has a significant influence on the formation of BNNTs. Boron nitride nanotubes (BNNTs) can be grown on stainless steel by annealing a mixture of diboron trioxide (B2O3) and boron (B) at 1200–1300°C under ammonia (NH3). In previously reported boron oxide chemical vapor deposition methods for the synthesis of BNNTs, diboron dioxide (B2O2) is generated in situ by the reaction of boron and metal oxides. In this study, we directly used a mixture of B2O3 and boron as boron sources, thereby, avoiding the use of metal containing species in the starting material. The concentration of B2O3 significantly influenced the formation, quality and quantity of BNNTs.