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- W3010642284 endingPage "443" @default.
- W3010642284 startingPage "443" @default.
- W3010642284 abstract "Hexagonal boron nitrite (hBN) is an attractive material for many applications such as in electronics as a complement to graphene, in anti-oxidation coatings, light emitters, etc. However, the synthesis of high-quality hBN at cost-effective conditions is still a great challenge. Thus, this work reports on the synthesis of large-area and crystalline hBN nanosheets via the modified polymer derived ceramics (PDCs) process. The addition of both the BaF2 and Li3N, as melting-point reduction and crystallization agents, respectively, led to the production of hBN powders with excellent physicochemical properties at relatively low temperatures and atmospheric pressure conditions. For instance, XRD, Raman, and XPS data revealed improved crystallinity and quality at a decreased formation temperature of 1200 °C upon the addition of 5 wt% of BaF2. Moreover, morphological determination illustrated the formation of multi-layered nanocrystalline and well-defined shaped hBN powders with crystal sizes of 2.74–8.41 ± 0.71 µm in diameter. Despite the compromised thermal stability, as shown by the ease of oxidation at high temperatures, this work paves way for the production of large-scale and high-quality hBN crystals at a relatively low temperature and atmospheric pressure conditions." @default.
- W3010642284 created "2020-03-13" @default.
- W3010642284 creator A5013224713 @default.
- W3010642284 creator A5032703189 @default.
- W3010642284 creator A5038251855 @default.
- W3010642284 creator A5064726437 @default.
- W3010642284 creator A5077691806 @default.
- W3010642284 date "2020-02-29" @default.
- W3010642284 modified "2023-09-30" @default.
- W3010642284 title "Improving Formation Conditions and Properties of hBN Nanosheets Through BaF2-assisted Polymer Derived Ceramics (PDCs) Technique" @default.
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- W3010642284 doi "https://doi.org/10.3390/nano10030443" @default.
- W3010642284 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7152994" @default.