کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1589878 | 1002012 | 2007 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electron microscopy characterization of nanostructured carbon obtained from chlorination of metallocenes and metal carbides
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Electron microscopy characterization of nanostructured carbon obtained from chlorination of metallocenes and metal carbides Electron microscopy characterization of nanostructured carbon obtained from chlorination of metallocenes and metal carbides](/preview/png/1589878.png)
چکیده انگلیسی
In this work we report some new well-defined carbon nanostructures produced by direct chlorination of metallocenes (ferrocene and cobaltocene) and NbC, at temperatures from 100 to 900 °C. Thus, amorphous carbon nanotubes with variable dimensions depending on reaction temperature were produced from ferrocene. When cobaltocene is the carbon precursor the main product are solid amorphous nanospheres. The high refractory metal carbide NbC as carbon source favours the growth of nanospherical cabbage-like particles with a higher degree of graphene sheets order. Besides, NbC crystallites encapsulated in an amorphous carbon shell were also found at lower temperatures (T â¤Â 700 °C).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Micron - Volume 38, Issue 4, June 2007, Pages 335-345
Journal: Micron - Volume 38, Issue 4, June 2007, Pages 335-345
نویسندگان
David Ávila-Brande, Esteban Urones-Garrote, Nebil A. Katcho, Enrique Lomba, Adrián Gómez-Herrero, Ángel R. Landa-Cánovas, L. Carlos Otero-DÃaz,