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Efficient catalytic conversion of ammonia borane to borazine and its use for hexagonal boron nitride (white graphene)
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kim, Sung Kwan Cho, Hyunjin Kim, Myung Jong Park, Jinhyung Lee, Young Boo Kim, Hwan Chul Yoon, Chang Won Kang, Sang Ook |
| Copyright Year | 2013 |
| Abstract | Nickel nanoparticles (NiNPs) prepared in tetraglyme (TG) efficiently catalyzed the conversion of ammonia borane (AB, NH3BH3) to borazine (B3N3H6). Under the optimized conditions, 3 mol% of the NiNPs were introduced into a 1.5 M AB solution in TG and held at 80 °C for 6 h under a dynamic vacuum that was maintained at 30 torr. Borazine was isolated through a series of −45 °C, −78 °C, and −196 °C traps to give (−78 °C trap) pure borazine in 53% yield. The borazine produced was then utilized as a molecular precursor for high quality h-BN (white graphene) and large area h-BN sheets were prepared by applying low pressure chemical vapor deposition (LPCVD). Ultra-thin (single to few layers) h-BN was synthesized on Ni foil at the optimal ratio between borazine and NH3, and the number of layers was tuned by varying the NH3 partial pressure. |
| Starting Page | 1976 |
| Ending Page | 1981 |
| Page Count | 6 |
| File Format | PDF HTM / HTML |
| DOI | 10.1039/C2TA00758D |
| Volume Number | 1 |
| Alternate Webpage(s) | http://www.rsc.org/suppdata/ta/c2/c2ta00758d/c2ta00758d.pdf |
| Alternate Webpage(s) | https://doi.org/10.1039/C2TA00758D |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
