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Boron nitride colloidal solutions, ultralight aerogels and freestanding membranes through one-step exfoliation and functionalization

Lei, Weiwei, Mochalin, Vadym N., Liu, Dan, Qin, Si, Gogotsi, Yury and Chen, Ying 2015, Boron nitride colloidal solutions, ultralight aerogels and freestanding membranes through one-step exfoliation and functionalization, Nature communications, vol. 6, pp. 1-8, doi: 10.1038/ncomms9849.

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Title Boron nitride colloidal solutions, ultralight aerogels and freestanding membranes through one-step exfoliation and functionalization
Author(s) Lei, WeiweiORCID iD for Lei, Weiwei orcid.org/0000-0003-2698-299X
Mochalin, Vadym N.
Liu, DanORCID iD for Liu, Dan orcid.org/0000-0001-6875-419X
Qin, SiORCID iD for Qin, Si orcid.org/0000-0002-8127-4753
Gogotsi, Yury
Chen, YingORCID iD for Chen, Ying orcid.org/0000-0002-7322-2224
Journal name Nature communications
Volume number 6
Start page 1
End page 8
Total pages 8
Publisher Nature Publishing Group
Place of publication London, Eng.
Publication date 2015-11
ISSN 2041-1723
Summary Manufacturing of aerogels and membranes from hexagonal boron nitride (h-BN) is much more difficult than from graphene or graphene oxides because of the poor dispersibility of h-BN in water, which limits its exfoliation and preparation of colloidal solutions. Here, a simple, one-step mechano-chemical process to exfoliate and functionalize h-BN into highly water-dispersible, few-layer h-BN containing amino groups is presented. The colloidal solutions of few-layer h-BN can have unprecedentedly high concentrations, up to 30 mg ml(-1), and are stable for up to several months. They can be used to produce ultralight aerogels with a density of 1.4 mg cm(-3), which is ∼1,500 times less than bulk h-BN, and freestanding membranes simply by cryodrying and filtration, respectively. The material shows strong blue light emission under ultraviolet excitation, in both dispersed and dry state.
Language eng
DOI 10.1038/ncomms9849
Field of Research 100708 Nanomaterials
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID DE150101617
DE140100716
Copyright notice ©2015, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080186

Document type: Journal Article
Collections: Institute for Frontier Materials
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Created: Thu, 10 Dec 2015, 10:19:41 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.