Combined study of the ground and excited states in the transformation of nanodiamonds into carbon onions by electron energy-loss spectroscopy. Feng, Z.; Lin, Y.; Tian, C.; Hu, H.; and Su, D. Scientific Reports, 2019. cited By 2
Combined study of the ground and excited states in the transformation of nanodiamonds into carbon onions by electron energy-loss spectroscopy [link]Paper  doi  abstract   bibtex   
The electron momentum density and sp 2 /sp 3 ratio of carbon materials in the thermal transformation of detonation nanodiamonds (ND) into carbon nano-onions are systematically studied by electron energy-loss spectroscopy (EELS). Electron energy-loss near-edge structures of the carbon K-ionization in the electron energy-loss spectroscopy are measured to determine the sp 2 content of the ND-derived samples. We use the method developed by Titantah and Lamoen, which is based on the ability to isolate the π * spectrum and has been shown to give reliable and accurate results. Compton profiles (CPs) of the ND-derived carbon materials are obtained by performing EELS on the electron Compton scattering region. The amplitude of the CPs at zero momentum increases with increasing annealing temperature above 500 °C. The dramatic changes occur in the temperature range of 900–1300 °C, which indicates that the graphitization process mainly occurs in this annealing temperature region. Our results complement the previous work on the thermal transformation of ND-derived carbon onions and provide deeper insight into the evolution of the electronic properties in the graphitization process. © 2019, The Author(s).
@ARTICLE{Feng2019,
author={Feng, Z. and Lin, Y. and Tian, C. and Hu, H. and Su, D.},
title={Combined study of the ground and excited states in the transformation of nanodiamonds into carbon onions by electron energy-loss spectroscopy},
journal={Scientific Reports},
year={2019},
volume={9},
number={1},
doi={10.1038/s41598-019-40529-2},
art_number={3784},
note={cited By 2},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062601593&doi=10.1038%2fs41598-019-40529-2&partnerID=40&md5=8ba19f83b28227b31c5f791ccc3d74e5},
abstract={The electron momentum density and sp 2 /sp 3 ratio of carbon materials in the thermal transformation of detonation nanodiamonds (ND) into carbon nano-onions are systematically studied by electron energy-loss spectroscopy (EELS). Electron energy-loss near-edge structures of the carbon K-ionization in the electron energy-loss spectroscopy are measured to determine the sp 2 content of the ND-derived samples. We use the method developed by Titantah and Lamoen, which is based on the ability to isolate the π * spectrum and has been shown to give reliable and accurate results. Compton profiles (CPs) of the ND-derived carbon materials are obtained by performing EELS on the electron Compton scattering region. The amplitude of the CPs at zero momentum increases with increasing annealing temperature above 500 °C. The dramatic changes occur in the temperature range of 900–1300 °C, which indicates that the graphitization process mainly occurs in this annealing temperature region. Our results complement the previous work on the thermal transformation of ND-derived carbon onions and provide deeper insight into the evolution of the electronic properties in the graphitization process. © 2019, The Author(s).},
document_type={Article},
source={Scopus},
}
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