Effect of arsenic, copper and antimony impurities from recycling process on the performance of Pb- Ca-Sn grids used in lead-acid batteries / Ashraf Mokhtar Abdelwahab ; Supervised Ahmed Gad Gad Allah , Hamid Abdellatif Abdelrahman , Said Abdelrahman Salih

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Ashraf Mokhtar Abdelwahab

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TextLanguage: English Publication details: Cairo : Ashraf Mokhtar Abdelwahab , 2014Description: 237 P. : charts , facsimiles ; 25cmOther title:

تأثير شوائب الزرنيخ والنحاس والانتيمون من عملية التدوير على أداء شباك رصاص - كالسيوم - قصدير المستخدمة فى بطاريات الرصاص الحمضية [Added title page title]

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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physical Chemistry Summary: The corrosion and electrochemical behavior of Pb-0.08%Ca-1.1 Sn alloys containing 0.1% of each of As or Cu or Sb or all of the three elements in 4.0 M H₂SO₄ were studied by various electrochemical methods. The study includes also the effect of Cu%, the addition of 0.4 M H₃PO₄ or 0.4 M H₃BO₃ and the effect of annealing of alloys for 2 hours at 250 {u00B0}C and then quenching in water at 0, 30 and 100 {u00B0}C. The study encourages higher tolerance levels of Cu, As and Sb in Pb-Ca-Sn grids, especially when the three impurities present combined, than the recommended levels in the industry standards. Cu, As, Sb individually or combined were found to decrease the corrosion resistance. Cu, As and Sb combined suppressed oxygen evolution reaction (OER) and hydrogen evolution reaction (HER)

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Item type	Current library	Home library	Call number	Copy number	Status	Date due	Barcode
Thesis	قاعة الرسائل الجامعية - الدور الاول	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.11.Ph.D.2014.As.E (Browse shelf(Opens below))		Not for loan		01010110064987000
CD - Rom	مخـــزن الرســائل الجـــامعية - البدروم	المكتبة المركزبة الجديدة - جامعة القاهرة	Cai01.12.11.Ph.D.2014.As.E (Browse shelf(Opens below))	64987.CD	Not for loan		01020110064987000

Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physical Chemistry

The corrosion and electrochemical behavior of Pb-0.08%Ca-1.1 Sn alloys containing 0.1% of each of As or Cu or Sb or all of the three elements in 4.0 M H₂SO₄ were studied by various electrochemical methods. The study includes also the effect of Cu%, the addition of 0.4 M H₃PO₄ or 0.4 M H₃BO₃ and the effect of annealing of alloys for 2 hours at 250 {u00B0}C and then quenching in water at 0, 30 and 100 {u00B0}C. The study encourages higher tolerance levels of Cu, As and Sb in Pb-Ca-Sn grids, especially when the three impurities present combined, than the recommended levels in the industry standards. Cu, As, Sb individually or combined were found to decrease the corrosion resistance. Cu, As and Sb combined suppressed oxygen evolution reaction (OER) and hydrogen evolution reaction (HER)

Issued also as CD

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