Laser-Induced Conversion of Teflon into Fluorinated Nanodiamonds or Fluorinated Graphene.
Laser-Induced Conversion of Teflon into Fluorinated Nanodiamonds or Fluorinated Graphene.
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DOI：
10.1021/acsnano.7b05877
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发表时间：
2018-01
期刊：
影响因子：
17.1
通讯作者：
Ruquan Ye;Xiaojuan Han;D. Kosynkin;Yilun Li;Chenhao Zhang;B. Jiang;A. Martí;J. Tour
中科院分区：
文献类型：
--
作者：
Ruquan Ye;Xiaojuan Han;D. Kosynkin;Yilun Li;Chenhao Zhang;B. Jiang;A. Martí;J. Tour
激光辅助材料制造是一种先进的技术，推动了最近的碳合成方法。利用CO2激光直接在聚酰亚胺或木质纤维素材料上进行激光刻写，已经成功地将衬底转化为分层石墨烯。然而，其他碳同素异形体的形成，如金刚石和富勒烯，仍然具有挑战性。在这里，我们报道了用9.3 μm脉冲CO2激光在氩气下处理聚四氟乙烯（Teflon，或PTFE）直接合成氟化纳米金刚石或氟化石墨烯；不需要外源氟源。激光器是商业激光切割/划线系统的一部分，在大多数机械车间都可以找到。因此，它是一个易于访问的工具。这一发现对未来激光辅助合成功能化碳同素异形体具有启发意义。
Laser-assisted materials fabrication is an advanced technique that has propelled recent carbon synthesis approaches. Direct laser writing on polyimide or lignocellulose materials by a CO2 laser has successfully transformed the substrates into hierarchical graphene. However, formation of other carbon allotropes such as diamond and fullerene remains challenging. Here, we report the direct synthesis of fluorinated nanodiamonds or fluorinated graphene by treating polytetrafluoroethylene (Teflon, or PTFE) with a 9.3 μm pulsed CO2 laser under argon; no exogenous fluorine source is needed. The laser is part of a commercial laser cutting/scribing system that is found in most machine shops. Therefore, it is a readily accessible tool. This discovery could inspire future development for the laser-assisted synthesis of functionalized carbon allotropes.