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Two-dimensional hexagonal boron nitride by cryo-milling: microstructure and oxidation behavior at elevated temperature
Boron nitride (BN) nanosheets in bulk quantity and reproducible quality were generated by a top-down approach from coarse (micron) grade hexagonal boron nitride (m-hBN) via cryo-milling under optimized process conditions followed by sonication. The as-produced boron nitride nanosheets showed a lower...
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| Published in: | Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2024-05, Vol.26 (5), p.80, Article 80 |
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| container_title | Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology |
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| creator | Sarma, Sreedhara Sudhakara Padya, Balaji Sarada, Bulusu Venkata Akhila, Vasamsetti Gowthami, Chandra Krishna, Pasam Vamsi Joardar, Joydip |
| description | Boron nitride (BN) nanosheets in bulk quantity and reproducible quality were generated by a top-down approach from coarse (micron) grade hexagonal boron nitride (m-hBN) via cryo-milling under optimized process conditions followed by sonication. The as-produced boron nitride nanosheets showed a lower average thickness of about 15–25 nm when compared to previously reported low-yield techniques like sonication and specific solvent-induced liquid exfoliation and chemical vapor deposition (CVD). Interestingly, some fraction of the hexagonal boron nitride (hBN) was transformed to rhombohedral BN (rBN) under cryo-milling conditions. Such transition assisted the generation of the layered 2D nanosheet structure due to higher interlamellar spacing of the basal planes in rBN. Thermo-gravimetric and differential scanning calorimetric (TG/DSC) studies showed thermal stability of hBN/rBN nanosheets up to about 800 °C when compared to about 1000 °C in m-hBN, with the formation of BNOx and B
2
O
3
phases. Multiple DSC peaks for oxidation were observed corresponding to different particle size ranges in the powder. Thus, cryo-milling could be an effective route for the bulk production of 2D-BN nanosheets for various applications like high-temperature lubricants.
Graphical Abstract |
| doi_str_mv | 10.1007/s11051-024-05992-7 |
| format | article |
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2
O
3
phases. Multiple DSC peaks for oxidation were observed corresponding to different particle size ranges in the powder. Thus, cryo-milling could be an effective route for the bulk production of 2D-BN nanosheets for various applications like high-temperature lubricants.
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2
O
3
phases. Multiple DSC peaks for oxidation were observed corresponding to different particle size ranges in the powder. Thus, cryo-milling could be an effective route for the bulk production of 2D-BN nanosheets for various applications like high-temperature lubricants.
Graphical Abstract</description><subject>Boron</subject><subject>Boron nitride</subject><subject>Boron oxides</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemical vapor deposition</subject><subject>Chemistry and Materials Science</subject><subject>Differential scanning calorimetry</subject><subject>High temperature</subject><subject>High temperature lubricants</subject><subject>Inorganic Chemistry</subject><subject>Lasers</subject><subject>Lubricants</subject><subject>Materials Science</subject><subject>Nanosheets</subject><subject>Nanotechnology</subject><subject>Optical Devices</subject><subject>Optics</subject><subject>Original Research</subject><subject>Oxidation</subject><subject>Photonics</subject><subject>Physical Chemistry</subject><subject>Sonication</subject><subject>Thermal stability</subject><issn>1388-0764</issn><issn>1572-896X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kM9LwzAYhosoOKf_gKeA52iSpk3qTYa_YOBlgreQNl-3jLaZSTq3_97WCt48fe_heR_43iS5puSWEiLuAqUko5gwjklWFAyLk2RGM8GwLPKP0yGnUmIicn6eXISwJYTmrGCzZL_6ctjYFrpgXacbtIGDXv-k0nnXoc5Gbw2g8ogqf3S4tU1ju_U9am3lXYi-r2LvAenOIHewRsfBg0rY6L11HumIoIG9jmBQhHYHXo_4ZXJW6ybA1e-dJ-9Pj6vFC16-Pb8uHpa4YoJEXGZc1qmuaiG1KTMjC17TKq2AcC5pxpmRDKRkWuc0p5AKQ2VNRFmXQDTVIp0nN5N3591nDyGqrev98F1QKeE54yKl2UCxiRo_Ch5qtfO21f6oKFHjvmraVw37qp991ahOp1IY4G4N_k_9T-sbVn2A9A</recordid><startdate>20240501</startdate><enddate>20240501</enddate><creator>Sarma, Sreedhara Sudhakara</creator><creator>Padya, Balaji</creator><creator>Sarada, Bulusu Venkata</creator><creator>Akhila, Vasamsetti</creator><creator>Gowthami, Chandra</creator><creator>Krishna, Pasam Vamsi</creator><creator>Joardar, Joydip</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QO</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>7U7</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope><scope>K9.</scope><scope>L7M</scope><scope>P64</scope><orcidid>https://orcid.org/0009-0009-7300-5033</orcidid><orcidid>https://orcid.org/0000-0003-2192-3018</orcidid><orcidid>https://orcid.org/0000-0002-9430-4966</orcidid><orcidid>https://orcid.org/0000-0003-0179-0959</orcidid><orcidid>https://orcid.org/0000-0003-4498-8308</orcidid><orcidid>https://orcid.org/0000-0001-9124-9466</orcidid><orcidid>https://orcid.org/0000-0002-4903-862X</orcidid></search><sort><creationdate>20240501</creationdate><title>Two-dimensional hexagonal boron nitride by cryo-milling: microstructure and oxidation behavior at elevated temperature</title><author>Sarma, Sreedhara Sudhakara ; 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The as-produced boron nitride nanosheets showed a lower average thickness of about 15–25 nm when compared to previously reported low-yield techniques like sonication and specific solvent-induced liquid exfoliation and chemical vapor deposition (CVD). Interestingly, some fraction of the hexagonal boron nitride (hBN) was transformed to rhombohedral BN (rBN) under cryo-milling conditions. Such transition assisted the generation of the layered 2D nanosheet structure due to higher interlamellar spacing of the basal planes in rBN. Thermo-gravimetric and differential scanning calorimetric (TG/DSC) studies showed thermal stability of hBN/rBN nanosheets up to about 800 °C when compared to about 1000 °C in m-hBN, with the formation of BNOx and B
2
O
3
phases. Multiple DSC peaks for oxidation were observed corresponding to different particle size ranges in the powder. Thus, cryo-milling could be an effective route for the bulk production of 2D-BN nanosheets for various applications like high-temperature lubricants.
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| subjects | Boron Boron nitride Boron oxides Characterization and Evaluation of Materials Chemical vapor deposition Chemistry and Materials Science Differential scanning calorimetry High temperature High temperature lubricants Inorganic Chemistry Lasers Lubricants Materials Science Nanosheets Nanotechnology Optical Devices Optics Original Research Oxidation Photonics Physical Chemistry Sonication Thermal stability |
| title | Two-dimensional hexagonal boron nitride by cryo-milling: microstructure and oxidation behavior at elevated temperature |
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