![](/images/graphics-bg.png)
Effects of Different Raw Materials in the Synthesis of Boehmite and γ- and α-Alumina
المؤلفون المشاركون
Padilla, Isabel
López-Delgado, Aurora
López-Andrés, Sol
المصدر
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-6، 6ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-11-10
دولة النشر
مصر
عدد الصفحات
6
التخصصات الرئيسية
الملخص EN
Two alumina polymorphs, the metaestable γ-Al2O3 and the stable α-Al2O3, were obtained from thermal treatment of the precursor γ-AlOOH (boehmite).
This precursor was prepared by a precipitation method employing different raw materials in order to study their effect on the synthesis process and several characteristics of the materials, such as the crystallite size, the thermal behavior, and the surface area.
Aluminum chloride (AlCl3·6H2O) and an aluminum waste were used as the source of aluminum.
A 1 M NaOH solution and a 1 M n-butylamine solution were used as alkalizing agents, due to their strong and weak alkaline characteristics, respectively.
The XRD profiles of the boehmites obtained from waste show lower crystallinity than samples obtained from aluminum chloride.
The content of water, from TG studies, was higher in the samples obtained from waste, which fit well with the smaller crystallite size.
The use of n-butylamine as alkalizing agent favors the formation of γ-alumina with higher surface area (177.2 cm2 g−1, for aluminum waste, and 159.4 cm2 g−1, for aluminum pure reagent).
The temperature of transformation from gamma to alpha, from DTA results, is higher for samples obtained from the waste, and accordingly the presence of impurities in the waste stabilizes the metastable alumina phase.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Padilla, Isabel& López-Andrés, Sol& López-Delgado, Aurora. 2016. Effects of Different Raw Materials in the Synthesis of Boehmite and γ- and α-Alumina. Journal of Chemistry،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1107700
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Padilla, Isabel…[et al.]. Effects of Different Raw Materials in the Synthesis of Boehmite and γ- and α-Alumina. Journal of Chemistry No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1107700
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Padilla, Isabel& López-Andrés, Sol& López-Delgado, Aurora. Effects of Different Raw Materials in the Synthesis of Boehmite and γ- and α-Alumina. Journal of Chemistry. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1107700
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1107700
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
![](/images/ebook-kashef.png)
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
![](/images/kashef-image.png)