Scalable Purification of Boron Nitride Nanotubes via Wet Thermal Etching
| العنوان: | Scalable Purification of Boron Nitride Nanotubes via Wet Thermal Etching |
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| المؤلفون: | Cheol Park, Matteo Pasquali, Mitchell A. Trafford, Olga Kleinerman, Samuel J.A. Hocker, Mohammed Adnan, Daniel M. Marincel, E. Amram Bengio, Sang-Hyon Chu, Sivaram Arepalli, Angel A. Martí, Yeshayahu Talmon, Dmitry V. Kosynkin, Catharine C. Fay, Junchi Ma |
| المصدر: | Chemistry of Materials. 31:1520-1527 |
| بيانات النشر: | American Chemical Society (ACS), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Materials science, Scanning electron microscope, General Chemical Engineering, chemistry.chemical_element, Infrared spectroscopy, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, chemistry.chemical_compound, chemistry, X-ray photoelectron spectroscopy, Chemical engineering, Transmission electron microscopy, Etching (microfabrication), Boron nitride, Materials Chemistry, Surface modification, 0210 nano-technology, Boron |
| الوصف: | Boron nitride nanotubes (BNNT) are poised to fill an electrically insulating, high-temperature, high-strength niche. Despite significant progress over the past two decades, BNNTs are not yet synthesized in high enough quantity and quality to permit their use in engineering applications. The next necessary step to make BNNTs accessible for research and applications is to improve the availability of high-quality BNNTs. Here, we present a scalable bulk purification technique that yields high-purity BNNTs. Bulk synthesized material is introduced to a wet oxygen environment at elevated temperatures to remove elemental boron and hexagonal boron nitride impurities with a final yield of purified BNNTs near 10 wt %. This process shows full removal of impurities, as observed by scanning electron microscopy (SEM), cryogenic transmission electron microscopy (TEM), and high-resolution TEM. X-ray photoelectron spectroscopy (XPS) and infrared spectroscopy show minimal BNNT functionalization, while high-resolution TEM sh... |
| تدمد: | 1520-5002 0897-4756 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::b78eac4b684e37c4dfd298a194ebc099 https://doi.org/10.1021/acs.chemmater.8b03785 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........b78eac4b684e37c4dfd298a194ebc099 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 15205002 08974756 |
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