| 000 | 02644cam a2200337 a 4500 | ||
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| 003 | EG-GiCUC | ||
| 005 | 20250223032356.0 | ||
| 008 | 190911s2018 ua dho f m 000 0 eng d | ||
| 040 |
_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aPh.D | ||
| 099 | _aCai01.12.11.Ph.D.2018.Ad.P | ||
| 100 | 0 | _aAdel Ali Abdelkader | |
| 245 | 1 | 0 |
_aPreparation of carbon nanotubes over mixed metal-oxide catalysts / _c Adel Ali Abdelkader ; Supervised Gamal R. Saad , Mustafa M. Kamel |
| 246 | 1 | 5 | _aتحضير انابيب الكربون النانومترية فوق محفزات مختلطة من اكاسيد المعادن |
| 260 |
_aCairo : _bAdel Ali Abdelkader , _c2018 |
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| 300 |
_a95 P. : _bcharts , facsimiles , photographs ; _c25cm |
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| 502 | _aThesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physical Chemistry | ||
| 520 | _aCatalytic chemical vapor deposition (CCVD) is one of the most promising synthesis methods for economically producing large quantities of different nanocarbon structures. This study is focused on the synthesis of different morphological structures of carbon nanotubes via acetylene decomposition over the surface of quaternary-metallic catalyst (Fe-Ni-Co-Mo) supported on MgO (Fe-Ni-Co-Mo/MgO). In this study, different growth parameters, such as catalyst pretreatment atmosphere, carrier gas, carbon precursor, temperature, and reaction time were investigated to optimize the yield, quality, size, purity and graphitic crystallinity of the deposited carbon. The obtained samples were characterized by high resolution transmission electron microscopy (HR-TEM), thermogravimetric analysis (TGA), Raman spectroscopy, FTIR and X-ray diffraction. TEM images and Raman spectra of samples showed, depending on the conditions of deposit carbon, showed a successful synthesis of carbon nanobud, Onion-like (O-CNT) structure, a high-yield and quality bamboo-like multiwalled carbon nanotubes (b-CNT), hybrid graphene/carbon nanotubes (G/CNT) and multilayer graphene (MLG). TGA analysis showed no evidence of carbonaceous materials is formed during the synthesis process. The results found seem essential for realizing the role of different synthesis parameters on the yield, quality, and morphology of the synthesized product | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aCarbon nanotubes | |
| 653 | 4 | _aCCVD | |
| 653 | 4 | _aGraphene | |
| 700 | 0 |
_aGamal R. Saad , _eSupervisor |
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| 700 | 0 |
_aMustafa M. Kamel , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
| 905 |
_aAsmaa _eCataloger |
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| 905 |
_aNazla _eRevisor |
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| 942 |
_2ddc _cTH |
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| 999 |
_c73803 _d73803 |
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