کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1652499 | 1517338 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Observation of hollow helical fibers of MCM-41
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Observation of hollow helical fibers of MCM-41 Observation of hollow helical fibers of MCM-41](/preview/png/1652499.png)
چکیده انگلیسی
Helical MCM-41 hollow fiber with circular inner cavity, helical mesoporous channels and twisted hexagonal outer contour was observed for the first time. The hollow fiber wall is supposed to be composed of layers of helical meso-channels winding around the fiber axis. Furthermore, the helical pitches of these meso-channels may increase gradually depending on their winding radii, giving rise to zigzag fringes along the fiber axis in TEM micrographs. The growth of helical hollow fibers may start from a circular hollow fiber, and be followed by side growth of layers of helical meso-channels with varying pitches from inner side to outer side of the fiber.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 61, Issues 23–24, September 2007, Pages 4492–4495
Journal: Materials Letters - Volume 61, Issues 23–24, September 2007, Pages 4492–4495
نویسندگان
Jingui Wang, Wenqiu Wang, Pingchuan Sun, Zhongyong Yuan, Qinghua Jin, Datong Ding, Tiehong Chen,