کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7853531 | 1508871 | 2014 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Binderfree synthesis of high-surface-area carbon electrodes via CO2 activation of resorcinol-formaldehyde carbon xerogel disks: Analysis of activation process
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
High-surface-area carbon xerogels were prepared in the form of disks via carbonization of precursor resorcinol-formaldehyde (RF) polymer disks and subsequent activation of the resultant RF carbon xerogels by CO2. RF carbon xerogels allow the preparation of a set of pre-activated carbon disks having different mesopore volumes. Analysis of the relationship between the mesopore volume of the samples and their CO2 activation efficiency showed that the presence of mesopores is crucial for obtaining a high-surface-area carbon with minimal burn-off of carbon atoms. Activation of an RF carbon disk with a mesopore volume of 1.0Â cm3Â gâ1 up to a burn-off of 81% yielded an activated carbon disk with a high BET surface area of â¼3000Â m2Â gâ1. Such disks could be readily used as electrode materials for an electric double layer capacitor without filler or binder addition and exhibited competitive EDLC performance against other electrode materials previously reported.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 76, September 2014, Pages 240-249
Journal: Carbon - Volume 76, September 2014, Pages 240-249
نویسندگان
Takanori Tsuchiya, Takeshi Mori, Shinichiroh Iwamura, Isao Ogino, Shin R. Mukai,