1. Electrochemistry Laboratory
2. Chemistry Department
3. Faculty of Science
4. Menoufia University
5. Shibin El-Kom 32511
6. Electrochemistry Research Laboratory
7. Physics and Mathematics Engineering Department
8. Faculty of Electronic Engineering
9. Menouf 23952
10. Institute of Physical and Theoretical Chemistry
11. Bonn University
12. D-53117 Bonn
13. Germany