Synthesis and Physical Properties of Boron Nitride Nanotubes
- Authors
- Jeong, Wanseop; Kim, Jaewoo; Kim, Jaeyong
- Issue Date
- Feb-2017
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- BALL MILLING; BORON NITRIDE NANOTUBES (BNNTS); MAGNETIC PROPERTIES
- Citation
- SCIENCE OF ADVANCED MATERIALS, v.9, no.2, pp.276 - 279
- Indexed
- SCIE
SCOPUS
- Journal Title
- SCIENCE OF ADVANCED MATERIALS
- Volume
- 9
- Number
- 2
- Start Page
- 276
- End Page
- 279
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152959
- DOI
- 10.1166/sam.2017.2562
- ISSN
- 1947-2935
- Abstract
- Uniform shape of boron nitride nanotubes (BNNTs) were successfully synthesized by pulverization of boron powder mixed with Fe catalysts in a stainless steel vessel followed by annealing the powder at 1200 degrees C for 12 hours with flowing N-2 and NH3 in a furnace. During the pulverization process, the Fe particles, used as catalysts, were coated on amorphous boron powders. The shape and type of the BNNTs were critically changed by synthesis conditions such as pulverization and annealing time suggesting that ball milling period is an important factor to produce high quality of homogeneous BNNTs. Results of transmission electron microscope measured from the BNNTs produced with 6 hours of ball milling followed by 12 hours of annealing show that the samples have multi-walled tubular shape with a diameter of 30-50 nm. A specific surface area calculated by measuring N2 adsorption isotherm was 17.65 m(2)/g. Magnetization values measured by using a superconducting quantum interference device revealed that BNNTs have a typical pattern of paramagnetic property at 2 and 300 K.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 자연과학대학 > 서울 물리학과 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.