公开(公告)号：US12172889B2

公开(公告)日：2024-12-24

申请号：US17253749

申请日：2019-07-11

Applicant: National Research Council of Canada

Inventor： Benoit Simard ,  Keith Ingold ,  Steven Kendrick Walker ,  Robyn Iannitto ,  Hyunjin Cho ,  Yadienka Martinez-Rubi ,  Keun Su Kim ,  Christopher Kingston ,  Jingwen Guan ,  Stephane Denommee ,  Dean Ruth ,  Mark Plunkett

IPC: C01B21/064 ,  C01B35/14 ,  B82Y40/00

Abstract: Provided is a process and an apparatus for purifying boron nitride nanotube (BNNT) materials. The process involves the use of a halogen gas to remove halogen-reactive impurities from boron nitride nanotube (BNNT) materials in a single step with minimal interactions to produce structurally pristine BNNT. Gaseous byproducts are produced that 5 can be removed without the need for solution phase treatments. Yield efficiencies and purity of recovered BNNT are high compared to the other known methods of purification for BNNT material.