2014
DOI: 10.1016/j.carbon.2014.04.075
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Synthesis of ultrahard fullerite with a catalytic 3D polymerization reaction of C60

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Cited by 59 publications
(39 citation statements)
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“…The HRTEM observations on such released sample also suggest that it mainly contains disordered phases (Figure d), suggesting amorphization of the sample. The observed microstructure is different from those of 3D C 60 polymers and ultrahard fullerite derivatives reported in previous literatures . Strikingly, the disordered phase created clear ring cracks on the diamond anvils after decompression (Figure S2, Supporting Information), implying that it might be a highly incompressible or superhard phase .…”
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confidence: 65%
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“…The HRTEM observations on such released sample also suggest that it mainly contains disordered phases (Figure d), suggesting amorphization of the sample. The observed microstructure is different from those of 3D C 60 polymers and ultrahard fullerite derivatives reported in previous literatures . Strikingly, the disordered phase created clear ring cracks on the diamond anvils after decompression (Figure S2, Supporting Information), implying that it might be a highly incompressible or superhard phase .…”
contrasting
confidence: 65%
“…The broad bands preserved at the high frequency range in the Raman spectrum of the directly released sample should be evolved from the pentagon shear (H g (7)), the pentagonal pinch (A g (2)), and the hexagon shear (H g (8)) modes . This spectrum is similar to that of 3D polymerized C 60 , but upon heating up to the temperature for depolymerization of 3D C 60 , the materials irreversibly transform into amorphous carbon (see Figure S2, Supporting Information). These results suggest that the C 60 has irreversibly transformed into highly deformed or amorphous carbon clusters at 45 GPa, while the cubane molecules were highly strained or partially polymerized with neighboring carbon clusters.…”
mentioning
confidence: 97%
“…[17] However, we do not find any cracks on the diamond anvil after the compression of the solvated samples even up to 34.8GPa. This suggests that the effect of intercalated CS 2 molecules on the deformation of C 60 molecules under pressure is strongly dependent on the pressure conditions (hydrostatic or non-hydrostatic pressure).…”
mentioning
confidence: 52%
“…[16] Furthermore, Popov et al report that 3D-polymerized C 60 can be formed at a low pressure due to the presence of CS 2 molecules in C 60 powders, which act as catalyzer in the polymerization of C 60 . [17] Such phenomenon has never been reported in fullerene solvates intercalated by aromatic solvents. These results suggest that in comparison to aromatic solvents, the CS 2 molecules would play a different role on the transformations in fullerene solvates during the compression process.…”
mentioning
confidence: 95%
“…Для увеличения прочностных характеристик керамики на основе B 4 C при спекании материала используются различные виды добавок, повышающих пластичность и трещиностой-кость материала. Недавнее открытие каталитического синтеза 3D-полимеризованного фуллерита [6] предостав-ляет широкие возможности использования фуллерена для получения нового класса углеродных материалов. Керамика на основе углерода является одновременно легкой, прочной и температуростойкой [7,8].…”
Section: Introductionunclassified