کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7954262 | 1513769 | 2017 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis of nitrogen-doped graphitic carbon nanocapsules from a poly(ionic liquid) for CO2 capture
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A poly(ionic liquid) was prepared from an ionic liquid monomer that was obtained by the reaction of 1-vinylimidazole, 4-vinyl-benzene chloride with 2,6-di-tert-butyl-4-methylphenol. The poly(ionic liquid) was mixed with K3[Fe(CN)6] and a 5 nm silica colloidal sol, carbonized at 900 °C for 4h, and sequentially treated with HNO3 and NaOH to remove the iron and silica to obtain nitrogen-doped graphitic carbon nanocapsules. The iron and silica acted as a graphitization catalyst and template, respectively. The nitrogen-doped graphitic carbon nanocapsules have a diameter of 50 nm and a wall thickness of 6 nm and have a high adsorption capacity and good recyclability for CO2 capture. The addition of SiO2 nanoparticles in the synthesis significantly increased the specific surface area from 100.4 to 865.7 m2 gâ1 and the CO2 adsorption capacity from 0.76 to 2.14 mmol gâ1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Carbon Materials - Volume 32, Issue 4, August 2017, Pages 380-384
Journal: New Carbon Materials - Volume 32, Issue 4, August 2017, Pages 380-384
نویسندگان
Lei Liu, Juan Lu, Yi-xin Zhang, Meng Liu, Yi-feng Yu, Ai-bing Chen,