کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1652655 | 1007645 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A cost-effective preparation method of Ba-hexaaluminate nanoparticles for catalytic combustion of methane
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The rod-like hexaaluminate nanoparticles have been prepared by using the alumina sol as the (NH4)2CO3 co-precipitation precursor and supercritical drying (SCD) method. Formation of the final hexaaluminate likely occurs via diffusion of the Ba2+ ions into the δ-Al2O3 matrix. Only Ba-hexaaluminate phase (alumina-rich phase) is observed in the hexaaluminate products. Since the network of the aerogel has a higher stability than that formed by using aluminum nitrate, leading to the decrease in the mobility of aluminum at high calcination temperature, which plays a significant role in maintaining high surface area and pore structure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 61, Issue 18, July 2007, Pages 3935–3938
Journal: Materials Letters - Volume 61, Issue 18, July 2007, Pages 3935–3938
نویسندگان
Shunqing Li, Haitao Liu, Xinhong Zhao, Xiaolai Wang,