Publication detail

Exfoliation of hexagonal boron nitride nanosheets in low-modulus concentrated alkali silicate pastes

BERTOLLA, L. ŠULÁK, I. BURŠÍK, J. DLOUHÝ, I. SMILEK, J. MÁCOVÁ, P. HOLAS, J.

Original Title

Exfoliation of hexagonal boron nitride nanosheets in low-modulus concentrated alkali silicate pastes

Type

journal article in Web of Science

Language

English

Original Abstract

We herein demonstrated the exfoliation of hexagonal boron nitride (h-BN) into nanosheets (BNNSs) by using concentrated low-modulus water glass (WG, SiO2/Na2O ratio = 1.6) as high viscosity exfoliating medium. The process led to BNNSs yield of nearly 30%. As the sheared suspension was neutralized with HCl, BNNSs with lateral size of approximately 250 nm and narrow size distribution, were found to align into perfectly parallel rows. High-resolution transmission electron microscopy (HR-TEM) analysis confirmed how WG preserved the integrity of the exfoliated BNNS in comparison with an analogous route with sole hydroxide, resulting in a high amount of BNNSs with undamaged structure. (C) 2021 Published by Elsevier B.V.

Keywords

Ceramics; Nanoparticles; BNNSs; Alkali silicate

Authors

BERTOLLA, L.; ŠULÁK, I.; BURŠÍK, J.; DLOUHÝ, I.; SMILEK, J.; MÁCOVÁ, P.; HOLAS, J.

Released

1. 6. 2021

Publisher

ELSEVIER

Location

AMSTERDAM

ISBN

1873-4979

Periodical

MATERIALS LETTERS

Year of study

292

Number

1

State

Kingdom of the Netherlands

Pages from

129551-1

Pages to

129551-4

Pages count

4

URL

https://www.sciencedirect.com/science/article/pii/S0167577X21002470?via%3Dihub