The Roles of Impurities and Surface Area on Thermal Stability and Oxidation Resistance of BN Nanoplatelets; Nanomaterials; Vol. 14, iss. 7

The Roles of Impurities and Surface Area on Thermal Stability and Oxidation Resistance of BN Nanoplatelets; Nanomaterials; Vol. 14, iss. 7

Bibliographic Details
Parent link:Nanomaterials.— .— Basel: MDPI AG
Vol. 14, iss. 7.— 2024.— Article number 601, 17 p.
Corporate Author: National Research Tomsk Polytechnic University (570)
Other Authors: Kostoglou N. Nikolaos, Stock S. Sebastian, Solomi A. Angelos, Holzapfel D. M., Hinder S. Steven, Baker M. Mark, Constantinides G. Georgios, Ryzhkov V. A. Vladislav Andreevich, Maletaskic J. Jelena, Matovic B. Branko, Schneider J. M., Rebholz C. Claus, Mitterer C. Christian
Summary:Title screen
This study considers the influence of purity and surface area on the thermal and oxidation properties of hexagonal boron nitride (h-BN) nanoplatelets, which represent crucial factors in high-temperature oxidizing environments. Three h-BN nanoplatelet-based materials, synthesized with different purity levels and surface areas (~3, ~56, and ~140 m2/g), were compared, including a commercial BN reference. All materials were systematically analyzed by various characterization techniques, including gas pycnometry, scanning electron microscopy, X-ray diffraction, Fourier-transform infrared radiation, X-ray photoelectron spectroscopy, gas sorption analysis, and thermal gravimetric analysis coupled with differential scanning calorimetry. Results indicated that the thermal stability and oxidation resistance of the synthesized materials were improved by up to ~13.5% (or by 120 °C) with an increase in purity. Furthermore, the reference material with its high purity and low surface area (~4 m2/g) showed superior performance, which was attributed to the minimized reactive sites for oxygen diffusion due to lower surface area availability and fewer possible defects, highlighting the critical roles of both sample purity and accessible surface area in h-BN thermo-oxidative stability. These findings highlight the importance of focusing on purity and surface area control in developing BN-based nanomaterials, offering a path to enhance their performance in extreme thermal and oxidative conditions
Текстовый файл
Language:English
Published: 2024
Subjects:
электронный ресурс
труды учёных ТПУ
nanomaterials
nanostructures
hexagonal boron nitride
nanoplatelets
purity
surface area
thermal stability
oxidation resistance
Online Access:https://doi.org/10.3390/nano14070601
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=673902

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