Lee, Soul-Hee Kang, Minsung Lim, Hongjin Moon, Se Youn Kim, Myung Jong Jang, Se Gyu Lee, Hyo Joong Cho, Hyunjin Ahn, Seokhoon 2024-01-19T14:03:36Z 2024-01-19T14:03:36Z 2021-09-05 2021-07-30 0169-4332 https://pubs.kist.re.kr/handle/201004/116672 BNNTs were functionalized by using a polymer that includes a pyridine group, which can undergo dipole interactions with boron atoms in BNNTs. The functionalized BNNTs were well-dispersed in an alcohol solvent, whereas hexagonal boron nitride impurities precipitated, due presumably to stacked structures. After purification processes, acid was added to a solution that contained functionalized BNNTs to prevent pyridine-boron interactions through stronger acid-base interactions. Thus, the polymer bound to the BNNTs was easily separated, and purified BNNTs could be obtained using a solution process. English ELSEVIER LARGE-SCALE SYNTHESIS SURFACE MODIFICATION HIGH-PERFORMANCE H-BN NANORIBBONS PRESSURE HYDROGEN GROWTH Purification of boron nitride nanotubes by functionalization and removal of poly(4-vinylpyridine) Article 10.1016/j.apsusc.2021.149722 1 APPLIED SURFACE SCIENCE, v.555 APPLIED SURFACE SCIENCE 555 scie scopus 000647656100004 2-s2.0-85103984894 Chemistry, Physical Materials Science, Coatings & Films Physics, Applied Physics, Condensed Matter Chemistry Materials Science Physics Article LARGE-SCALE SYNTHESIS SURFACE MODIFICATION HIGH-PERFORMANCE H-BN NANORIBBONS PRESSURE HYDROGEN GROWTH BNNT Purification Poly(4-vinylpyridine) Acid-base reaction