کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1558610 | 999315 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preparation and surface structures of carbon nanofibers produced from electrospun PAN precursors
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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: Preparation and surface structures of carbon nanofibers produced from electrospun PAN precursors Preparation and surface structures of carbon nanofibers produced from electrospun PAN precursors](/preview/png/1558610.png)
چکیده انگلیسی
Carbon nanofibers with diameters in the range of 100 nm to 300 nm were obtained by stabilizing and carbonizing electrospun polyacrylonitrile (PAN) precursors. The morphologies and structures of the nanofibers and PAN precursors were investigated by scanning electron microscopy, scanning tunneling microscopy, and differential scanning calorimetry. The diameters of the PAN precursors and carbon nanofibers showed a log-normal distribution. The cyclization exothermic peak shifted to a lower temperature for electrospun fibers, which suggested that cyclization could be more easily initiated. Pits 10 nm in length and 5 nm in width formed on the surface of the carbon nanofibers, caused by the rough surface of the electrospun precursors and their shrinkage during heat treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: New Carbon Materials - Volume 23, Issue 2, June 2008, Pages 171-176
Journal: New Carbon Materials - Volume 23, Issue 2, June 2008, Pages 171-176
نویسندگان
Shu-ying GU, Qi-lin WU, Jie REN,