Mechanically driven phase transition of fullerene

✍ Scribed by Z.G Liu; H Ohi; K Masuyama; K Tsuchiya; M Umemoto

• Book ID: 104152230
• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 138 KB
• Volume: 61
• Category: Article
• ISSN: 0022-3697
• DOI: 10.1016/s0022-3697(99)00371-6

✦ Synopsis

Structural evolution that takes place during mechanical milling of fullerene (C 60 (C 70 )) was investigated. Mechanical milling did not destroy the molecular structure of C 60 (C 70 ), but the fcc crystalline structure with long-range periodicity. Longer milling time results in the formation of C 60 (C 70 ) polymer, including C 60 dimer. Thermal analysis revealed a depolymerization enthalpy close to the theoretical calculation of the (2 ϩ 2) cycloaddition bonding energy of polymerization. Mechanical milling may be one effective means to produce C 60 (C 70 ) polymer.