TY - JOUR
T1 - Fast growth of nanodiamond in a microwave oven under atmospheric conditions
AU - Roy, Soumyendu
AU - Bajpai, Reeti
AU - Biro, Ronit Popovitz
AU - Wagner, Hanoch Daniel
N1 - The authors acknowledge Prof. Nikhil Koratkar, Rensselaer Polytechnic Institute, USA, for providing graphene. We also acknowledge the support from the G. M. J. Schmidt Minerva Centre of Supramolecular Architectures, PBC Program for fellowships for outstanding postdoctoral fellows from China and India 2013 and Harold Perlman’s family. H. D. Wagner is the recipient of the LivioNorzi Professorial Chair in Materials Science. Most of the experiments in this study were conducted at Weizmann Institute of Science. S.R. and R.B. acknowledge the financial support from DST, India, via the DST INSPIRE Faculty Awards (Nos. DST/INSPIRE/04/2015/002287 and DST/INSPIRE/04/2015/002318, respectively).
PY - 2020/1
Y1 - 2020/1
N2 - Nanodiamonds (NDs) were synthesized under atmospheric conditions by heating a precursor powder mixture consisting of naphthalene and a microwave (MW) absorbing material inside an ordinary MW oven for 10 min. Pyrolysis of naphthalene led to the formation of onion-like carbon particles which then converted to NDs after prolonged MW irradiation. Different carbon-based materials like graphite, carbon black, graphene, and carbon nanotubes were used as microwave radiation absorbers that assisted in the dissociation of naphthalene and formation of NDs. ND particles were formed in both isolated as well as aggregated forms. Size of the particles ranged from 2 to 700 nm. Scanning electron microscopy, transmission electron microscopy, electron energy loss spectroscopy, Raman spectroscopy and thermogravimetric analysis were used to characterize the NDs present in the MW-synthesized product. The proposed MW-based ND synthesis technique is simple, fast, inexpensive, energy efficient and could be suitable for industrial scale production.
AB - Nanodiamonds (NDs) were synthesized under atmospheric conditions by heating a precursor powder mixture consisting of naphthalene and a microwave (MW) absorbing material inside an ordinary MW oven for 10 min. Pyrolysis of naphthalene led to the formation of onion-like carbon particles which then converted to NDs after prolonged MW irradiation. Different carbon-based materials like graphite, carbon black, graphene, and carbon nanotubes were used as microwave radiation absorbers that assisted in the dissociation of naphthalene and formation of NDs. ND particles were formed in both isolated as well as aggregated forms. Size of the particles ranged from 2 to 700 nm. Scanning electron microscopy, transmission electron microscopy, electron energy loss spectroscopy, Raman spectroscopy and thermogravimetric analysis were used to characterize the NDs present in the MW-synthesized product. The proposed MW-based ND synthesis technique is simple, fast, inexpensive, energy efficient and could be suitable for industrial scale production.
U2 - https://doi.org/10.1007/s10853-019-03936-4
DO - https://doi.org/10.1007/s10853-019-03936-4
M3 - مقالة
SN - 0022-2461
VL - 55
SP - 535
EP - 544
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 2
ER -