| 000 | 02653cam a2200337 a 4500 | ||
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| 003 | EG-GiCUC | ||
| 005 | 20250223031842.0 | ||
| 008 | 171118s2017 ua hh f m 000 0 eng d | ||
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_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aM.Sc | ||
| 099 | _aCai01.12.11.M.Sc.2017.Do.D | ||
| 100 | 0 | _aDoha Mahmoud Sayed Mohammed | |
| 245 | 1 | 0 |
_aDevelopment of nickel oxide nanostructured- based electrodes for energy conversion applications / _cDoha Mahmoud Sayed Mohammed ; Supervised Mohamed Saada Eldeab , Gumaa Ali Elnagar |
| 246 | 1 | 5 | _aتطوير أقطاب من اكسيد النيكل ذات بنيه نانومترية لتطبيقات تحويل الطاقة |
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_aCairo : _bDoha Mahmoud Sayed Mohammed , _c2017 |
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| 300 |
_a112 P. : _bcharts , facsimiles ; _c25cm |
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| 502 | _aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physical Chemistry | ||
| 520 | _aElectrocatalysis at nanostructured materials is a topic of a great interest, due to the high surface area to volume ratio that increases the overall performance, while minimizing costs of often expensive metal and alloy constituents. Sensitivity of electrocatalytic reactions to the catalyst particle size, loading and crystallographic orientation has been reported for the oxygen evolution reaction (OER) at various temperatures (a reaction with direct relevance to energy conversion applications). Nanostructured nickel oxide modified glassy carbon electrodes (nano-NiOx/GC) are used as the anodes. The influence of temperature (T) on the activity of the electrode was probed. Increasing T results in a significant enhancement of the catalytic activity of nano-NiOx/GC as probed by a favorable negative shift of the onset potential (Eonset) of the OER, and an increase of the OER current at a particular potential. Moreover, nano-NiOx/GC passivated at elevated temperatures (e.g., 333 K) shows better catalytic activity and stability towards the OER more than those prepared at lower temperature (298 K). However, a rapid degradation of activity upon prolonged electrolysis at elevated temperatures is observed which could be restored (partially or totally) upon cycling the potential of nano-NiOx/GC electrode several times between (0.85 and 1.65 V vs RHE) | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aElectrocatalysis | |
| 653 | 4 | _aNanomaterials | |
| 653 | 4 | _aOER | |
| 700 | 0 |
_aGumaa Ali El-Nagar , _eSupervisor |
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| 700 | 0 |
_aMohamed Saada El-Deab , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
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_aNazla _eRevisor |
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_aShimaa _eCataloger |
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_2ddc _cTH |
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_c63506 _d63506 |
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