公开(公告)号：US20210114875A1

公开(公告)日：2021-04-22

申请号：US16844213

申请日：2020-04-09

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Seokhoon AHN ,  Se Gyu JANG ,  Myung Jong KIM ,  Hun-Su LEE ,  Soul-Hee LEE ,  Min Sung KANG ,  Sangseok LEE ,  Yongho JOO

IPC分类号： C01B21/064

摘要： Disclosed is a method of purifying boron nitride nanotubes through a simplified process. Specifically, the method includes preparing a starting solution containing boron nitride nanotubes (BNNTs), a dispersant and a solvent, centrifuging the starting solution or allowing the starting solution to stand to collect a supernatant, adding an acid to the supernatant and filtering a resulting product.

公开(公告)号：US20230340281A1

公开(公告)日：2023-10-26

申请号：US17956980

申请日：2022-09-30

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Sang seok LEE ,  Dong Su LEE ,  Se Gyu JANG ,  Yongho JOO ,  Sukang BAE ,  Seokhoon AHN ,  Dae-Young JEON ,  Jangyup SON ,  Jungwon KIM

IPC分类号： C09D7/45 ,  C01B32/174 ,  C01B32/159 ,  C01B21/064 ,  C09D1/00 ,  C09D7/65

CPC分类号： C09D7/45 ,  C01B32/174 ,  C01B32/159 ,  C01B21/0648 ,  C09D1/00 ,  C09D7/65 ,  C01B2202/02 ,  C01B2202/28 ,  C01P2004/13 ,  C01P2006/22

摘要： A nanotube dispersion, a nanotube film manufactured using the same, and a manufacturing method thereof are provided. The nanotube dispersion comprises a nanotube, a nanotube dispersant including at least one selected from a compound represented by a chemical formula 1 and a salt thereof, and a solvent including one selected from an organic solvent, water, and a mixture thereof.

公开(公告)号：US20220315426A1

公开(公告)日：2022-10-06

申请号：US17525967

申请日：2021-11-15

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Yongho JOO ,  Jaehyoung KO ,  Se Gyu JANG ,  Seokhoon AHN

IPC分类号： C01B21/064 ,  B01D15/42 ,  B01D15/16 ,  B01D15/12

摘要： The present disclosure relates to an apparatus and a method for purifying BNNT and purified BNNT, more specifically to an apparatus and a method for purifying BNNT, which allow separation of pure BNNT from synthesized BNNT wherein various impurities are included with high purification efficiency and separation of BNNT based on length, and purified BNNT. The method for purifying BNNT according to the present disclosure is characterized in that pure BNNT is separated from synthesized BNNT based on length by inputting a mobile phase including synthesized BNNT into a column chromatography device.