Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) Technique
Hexagonal boron nitrite (<i>h</i>BN) 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 <i>h</i>BN at cost-effective conditions is still a...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-02-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/3/443 |
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| author | Boitumelo J. Matsoso Victor Vuillet-a-Ciles Laurence Bois Bérangère Toury Catherine Journet |
| author_facet | Boitumelo J. Matsoso Victor Vuillet-a-Ciles Laurence Bois Bérangère Toury Catherine Journet |
| author_sort | Boitumelo J. Matsoso |
| collection | DOAJ |
| description | Hexagonal boron nitrite (<i>h</i>BN) 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 <i>h</i>BN at cost-effective conditions is still a great challenge. Thus, this work reports on the synthesis of large-area and crystalline <i>h</i>BN nanosheets via the modified polymer derived ceramics (PDCs) process. The addition of both the BaF<sub>2</sub> and Li<sub>3</sub>N, as melting-point reduction and crystallization agents, respectively, led to the production of <i>h</i>BN 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 BaF<sub>2</sub>. 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 <i>h</i>BN crystals at a relatively low temperature and atmospheric pressure conditions. |
| first_indexed | 2024-12-13T05:06:19Z |
| format | Article |
| id | doaj.art-79ead525f2094fd2b70aee63fcc91693 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-13T05:06:19Z |
| publishDate | 2020-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-79ead525f2094fd2b70aee63fcc916932022-12-21T23:58:40ZengMDPI AGNanomaterials2079-49912020-02-0110344310.3390/nano10030443nano10030443Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) TechniqueBoitumelo J. Matsoso0Victor Vuillet-a-Ciles1Laurence Bois2Bérangère Toury3Catherine Journet4Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex, FranceLaboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex, FranceLaboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex, FranceLaboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex, FranceLaboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Univ Lyon, Université Claude Bernard Lyon 1, F-69622 Villeurbanne Cedex, FranceHexagonal boron nitrite (<i>h</i>BN) 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 <i>h</i>BN at cost-effective conditions is still a great challenge. Thus, this work reports on the synthesis of large-area and crystalline <i>h</i>BN nanosheets via the modified polymer derived ceramics (PDCs) process. The addition of both the BaF<sub>2</sub> and Li<sub>3</sub>N, as melting-point reduction and crystallization agents, respectively, led to the production of <i>h</i>BN 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 BaF<sub>2</sub>. 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 <i>h</i>BN crystals at a relatively low temperature and atmospheric pressure conditions.https://www.mdpi.com/2079-4991/10/3/443hbnpdcsli3nborazinebaf22d material |
| spellingShingle | Boitumelo J. Matsoso Victor Vuillet-a-Ciles Laurence Bois Bérangère Toury Catherine Journet Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) Technique Nanomaterials hbn pdcs li3n borazine baf2 2d material |
| title | Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) Technique |
| title_full | Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) Technique |
| title_fullStr | Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) Technique |
| title_full_unstemmed | Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) Technique |
| title_short | Improving Formation Conditions and Properties of <i>h</i>BN Nanosheets Through BaF<sub>2</sub>-assisted Polymer Derived Ceramics (PDCs) Technique |
| title_sort | improving formation conditions and properties of i h i bn nanosheets through baf sub 2 sub assisted polymer derived ceramics pdcs technique |
| topic | hbn pdcs li3n borazine baf2 2d material |
| url | https://www.mdpi.com/2079-4991/10/3/443 |
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