Coking of anthracene at 400–600°C in the presence or in the absence of a cobalt catalyst supported on carbon nanotubes (CNTs) was studied for the first time. The coking products were examined by X-ray diffraction and electron microscopy. The CoO-CNTs catalyst considerably (by 50°C) decreased the temperature of the onset of coking and accelerated the coke formation. The presence of CoO-CNTs changed the coke morphology. Whereas coking of pure anthracene affords ~1 μm spherical particles of poorly crystallized carbon, in the presence of the catalyst, a carbon coat covering the CNT surface is formed.

中文翻译：

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“钴-碳纳米管”催化剂对蒽焦化的影响

首次研究了在存在或不存在负载在碳纳米管 (CNT) 上的钴催化剂的情况下，在 400-600°C 下蒽的焦化。通过X射线衍射和电子显微镜检查焦化产物。CoO-CNTs 催化剂显着（降低 50°C）降低了结焦开始的温度并加速了焦炭的形成。CoO-CNT 的存在改变了焦炭的形态。虽然纯蒽的焦化提供了约 1 μm 的结晶不良碳的球形颗粒，但在催化剂的存在下，会形成覆盖 CNT 表面的碳涂层。