Fabrication of Non-Covalently Functionalized Boron Nitride Nanotubes with High Stability and Water-Redispersibility.
Fabrication of Non-Covalently Functionalized Boron Nitride Nanotubes with High Stability and Water-Redispersibility.
复制标题
具有高稳定性和水再分散性的非共价功能化氮化硼纳米管的制备。
DOI：
10.1021/acs.jpclett.0c01177
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Tae
中科院分区：
文献类型：
--
作者：
Shin;Sang;S. Moon;Young;Tae
Boron nitride nanotubes (BNNTs) have attracted significant interest because of the remarkably difference in their physical properties compared with carbon nanotubes, as well as a far-reaching potential application including electrical insulators, thermally conducting, catalytic and piezoelectric materials, and neutron absorbers. Despite their unique physical properties, the bundling and insolubility of BNNTs in water because of its substantial van der Waals attraction and hydrophobicity, respectively, give rise to many limitations in practical applications. Here, we present a new way to produce a greatly stable BNNT dispersion by the non-covalent functionalization of BNNT surface in water. The non-covalently functionalized BNNTs (p-BNNTs) have been found to be highly stable in water for a long time (> 1 year) and easily water-redispersible by mild vortex mixing for a few minutes even after freeze-drying at - 45 C. The p-BNNTs were cylindrically encapsulated with polymerizable surfactants (BNNT diameter = ca. 3 nm and surfactant thickness = 0.8 nm).
