کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1558555 | 999309 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New mesoporous carbons prepared from pitch by simultaneous templating and carbonization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: New mesoporous carbons prepared from pitch by simultaneous templating and carbonization New mesoporous carbons prepared from pitch by simultaneous templating and carbonization](/preview/png/1558555.png)
چکیده انگلیسی
Mesoporous carbons with high surface area were successfully prepared from a pitch using MgO as a template. The mixtures of the pitch and the MgO precursors (magnesium acetate and citrate) with different mass ratios in powder form were carbonized at 950 °C in nitrogen. The MgO was dissolved using a 1mol/L hydrochloric acid aqueous solution after carbonization and the porous carbons formed were isolated. The results indicated that most of the pores in the carbons were mesopores, which were generated as a result of the templating action of MgO formed by pyrolysis of the MgO precursors. The BET surface area of the carbons could reach up to 1â295 m2/g although no activation was performed. The carbon yield was as high as 50% mass fraction when magnesium citrate was used as the MgO precursor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Carbon Materials - Volume 24, Issue 2, June 2009, Pages 187-190
Journal: New Carbon Materials - Volume 24, Issue 2, June 2009, Pages 187-190
نویسندگان
Yan-su WANG, Cheng-yang WANG, Ming-ming CHEN,