Journal
NANO LETTERS
Volume 18, Issue 3, Pages 1615-1619Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b04335
Keywords
Nanotechnology; boron nitride nanotubes; chlorosulfonic acid; nanotube extraction; thin films; aerogels
Categories
Funding
- NASA [NNX15AK72G]
- Robert A. Welch Foundation [C-1668]
- United States-Israel Binational Science Foundation
- AFOSR [FA9550-15-1-0370, FA9550-18-1-0014]
- NSF [CHE 1610175]
- Wiess Teacher-Scholar Fellowship
- Abu Dhabi National Oil Company (ADNOC)
- Direct For Mathematical & Physical Scien
- Division Of Chemistry [1610175] Funding Source: National Science Foundation
- NASA [NNX15AK72G, 807500] Funding Source: Federal RePORTER
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Due to recent advances in high-throughput synthesis, research on boron nitride nanotubes (BNNTs) is moving toward applications. One future goal is the assembly of macroscopic articles of high-aspect-ratio, pristine BNNTs. However, these articles are presently unattainable because of insufficient purification and fabrication methods. We introduce a solution process for extracting BNNTs from synthesis impurities without sonication or the use of surfactants and proceed to convert the extracted BNNTs into thin films. The solution process can also be used to convert as-synthesized material-which contains significant amounts of hexagonal boron nitride (h-BN)-into mats and aerogels with controllable structure and dimension. The solution extraction method, combined with further advances in synthesis and purification, contributes to the development of all-BNNT macroscopic articles, such as fibers and 3-D structures.
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