تفاصيل الوثيقة

نوع الوثيقة : مقال في مجلة دورية 
عنوان الوثيقة :
The use of nano supported nickel catalyst in reduction of p-nitrophenol using hydrazine as hydrogen donor
The use of nano supported nickel catalyst in reduction of p-nitrophenol using hydrazine as hydrogen donor
 
الموضوع : كيمياء 
لغة الوثيقة : الانجليزية 
المستخلص : p-Aminophenol was prepared by hydrogenation of p-nitro phenol over nano-sized nickel catalysts supported on two different supports, SiO2 and Al2O3. Hydrazine hydrate was used as hydrogen source in this reaction. Several loadings of nano-sized Ni were used, thus 20, 5, and 2.5 wt% were prepared. X-ray diffraction (XRD) and electron spin resonance (ESR) were employed to investigate the prepared catalysts. The Ni/Al2O3 was found to be more effective and give high durability. The catalytic activity of the reaction was found to be influenced by both the crystallinity of the nickel and the strain among nano-sized nickel particles. The prepared catalysts showed higher catalytic activity, especially at lower loading. During the reaction, a detectable change of the color was observed from yellow to green and finally to colorless, which enable us to suppose a mechanism of this reaction. 
ردمد : 1751-8253 
اسم الدورية : Green Chemistry Letters and Reviews 
المجلد : 3 
العدد : 2 
سنة النشر : 1431 هـ
2010 م 
نوع المقالة : مقالة علمية 
تاريخ الاضافة على الموقع : Saturday, November 12, 2011 

الباحثون

اسم الباحث (عربي)اسم الباحث (انجليزي)نوع الباحثالمرتبة العلميةالبريد الالكتروني
إسلام حمدي عبد المقصودAbd El Maksod, Islam Hamdyباحثدكتوراهislam_9000@yahoo.com
ثامر صالحSaleh, Tamer Sباحثدكتوراهtamsaid@yahoo.com

الملفات

اسم الملفالنوعالوصف
 31226.pdf pdfAbstract

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