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Preparation of low hydrogen over voltage surface protected nano-structure cathode / Rayhan Mohammad Abdo ; Supervised Ahmed Galal Helmy , Emanbellah Sayed Mettawee

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Rayhan Mohammad Abdo , 2014Description: 136 P. : charts , facsimiles ; 25cmOther title:
  • تحضير قطب كاثودي منخفض فوق جهد الهيدروجين محمي السطح ذو التركيب متناهي الصغر [Added title page title]
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  • Issued also as CD
Dissertation note: Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physical Chemistry Summary: Due to the shortage and the environmental problems of fossil fuel, a future perspective use of solar energy is its combination with water and its consequent electrolysis for generation of hydrogen gas, which is another form of clean energy sources. One of the main problems facing the production of hydrogen via water electrolysis is the cathodic material. Thus, development of economic, but active cathode materials is important in order to make the electrolysis process more effective. The modification of the electrodeposited Ni-Fe alloys was carried out via the addition of zinc and its subsequent leaching in an alkaline solution. The electrocatalytic performances of the modified alloys for hydrogen evolution in alkaline media had been investigated by cyclic voltammetry and Tafel linear polarization. The optimal conditions for the preparation of a modified Ni{u2013}Fe cathode are listed as pH 5, temperature 25{u00B0}C and electroplating current density 45 mA.cm⁻²
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Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.11.M.Sc.2014.Ra.P (Browse shelf(Opens below)) Not for loan 01010110066428000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.12.11.M.Sc.2014.Ra.P (Browse shelf(Opens below)) 66428.CD Not for loan 01020110066428000

Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physical Chemistry

Due to the shortage and the environmental problems of fossil fuel, a future perspective use of solar energy is its combination with water and its consequent electrolysis for generation of hydrogen gas, which is another form of clean energy sources. One of the main problems facing the production of hydrogen via water electrolysis is the cathodic material. Thus, development of economic, but active cathode materials is important in order to make the electrolysis process more effective. The modification of the electrodeposited Ni-Fe alloys was carried out via the addition of zinc and its subsequent leaching in an alkaline solution. The electrocatalytic performances of the modified alloys for hydrogen evolution in alkaline media had been investigated by cyclic voltammetry and Tafel linear polarization. The optimal conditions for the preparation of a modified Ni{u2013}Fe cathode are listed as pH 5, temperature 25{u00B0}C and electroplating current density 45 mA.cm⁻²

Issued also as CD

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