2014/01/08 by Lu Hua Li, Jiří Červenka, Jiri Cervenka +3 · 2 citations
Materials Science · Physics and Astronomy · #2D Materials and Applications #Graphene research and applications #Thermal properties of materials #cond-mat.mtrl-sci
paper · pdf · doi:10.1021/nn500059s
published as ACS Nano 8, 1457, 2014
openalex publication_date 2014/01/08 · arxiv created 2014/03/05 · arxiv updated 2014/03/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/31
Investigation on oxidation resistance of two-dimensional (2D) materials is critical for many of their applications, because 2D materials could have higher oxidation kinetics than their bulk counterparts due to predominant surface atoms and structural distortions. In this study, the oxidation behavior of high-quality boron nitride (BN) nanosheets of 1-4 layer thick has been examined by heating in air. Atomic force microscopy and Raman spectroscopy analyses reveal that monolayer BN nanosheets can sustain up to 850 °C and the starting temperature of oxygen doping/oxidation of BN nanosheets only slightly increases with the increase of nanosheet layer and depends on heating conditions. Elongated etch lines are found on the oxidized monolayer BN nanosheets, suggesting that the BN nanosheets are first cut along the chemisorbed oxygen chains and then the oxidative etching grows perpendicularly to these cut lines. The stronger oxidation resistance of BN nanosheets suggests that they are more preferable for high-temperature applications than graphene.