Exfoliated production of single- and multi-layer graphenes and carbon nanofibres from the carbonisation of a co-polymer

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• 作者：Alina V. Korobeinyk ; Raymond L.D. Whitby ; ^{r.whitby@brighton.ac.uk} ; Jonathan P. Salvage ; Sergey V. Mikhalovsky
• 刊名：Carbon
• 出版年：2012
• 出版时间：April 2012
• 年：2012
• 卷：50
• 期：5
• 页码：2018-2025
• 全文大小：1351 K

文摘

Non-catalysed growth methodologies of carbon nanomaterial synthesis can represent lower costs and greener approaches and cause less damage to the nanomaterial. During the carbonisation of a polyacrylonitrile-based co-polymer, carbon nanofibres (CNFs) and single- and multi-layer graphenes (SLG and MLG) are generated. The accumulated fragmentation products of the co-polymer coalesce to form CNFs that radiate away from the monolith, whose dimensions are linked to their template growth along crests, which were formed from the out-gassing of volatile products of the polymer during the stabilisation step. The slight shrinkage of the carbonising monolith also leads to exfoliation of larger areas of the surface yielding single- and multi-layered graphenes. These results reveal a potentially useful process for the facile production of carbon nanomaterials.