کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10610531 | 985980 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of the pressure-temperature treatment on the polymerization of C60 single crystals at 2Â GPa-700Â K
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of the pressure-temperature treatment on the polymerization of C60 single crystals at 2Â GPa-700Â K Influence of the pressure-temperature treatment on the polymerization of C60 single crystals at 2Â GPa-700Â K](/preview/png/10610531.png)
چکیده انگلیسی
X-ray diffraction and Raman spectroscopy have been used to characterize the structures obtained when C60 single crystals are treated at 2Â GPa-700Â K. Two different experimental procedures have been applied: the temperature is raised before the pressure is applied, or the opposite. The “heating-then-pressing” path leads to the tetragonal polymer structure (P42/mmc) together with a minor fraction of rhombohedral structure, which confirms previous results. In contrast, the “pressing-then-heating” path leads to a different state presenting similarities with both the rhombohedral and the disordered dimer structures. The results are discussed in light of the orientational and dynamical aspects of the C60 polymerization.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbon - Volume 43, Issue 4, 2005, Pages 709-716
Journal: Carbon - Volume 43, Issue 4, 2005, Pages 709-716
نویسندگان
R. Moret, T. WÃ¥gberg, B. Sundqvist,