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Nitrogen-doped active carbon as a metal-free catalyst for acetylene hydrochlorination

机译:氮掺杂活性炭作为乙炔盐酸盐化的无金属催化剂

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In this study, we report high catalytic activity for acetylene hydrochlorination by post-treatment of active carbon (AC) with polyaniline (PANI) followed by pyrolyzation at high temperature. The presence of PANI species in N-doped AC can be proven by transmission electron microscopy and X-ray photoelectron spectra. The N-doped AC catalyst with PANI had significantly improved catalytic activity and stability. Results demonstrated that the order of the nitrogen species' role in acetylene hydrochlorination is as follows: pyrrolic N > graphitic N > pyridinic N. It is a green, sustainable process for the polyvinyl chloride industry as a metal-free substitute for toxic HgCl2 because of its low cost, environmental stability, and excellent catalytic performance.
机译:在这项研究中,我们报道了通过用聚苯胺(PANI)对活性炭(AC)进行后处理,然后在高温下进行热解,对乙炔盐酸盐化具有较高的催化活性。 N掺杂AC中PANI物种的存在可以通过透射电子显微镜和X射线光电子能谱来证明。带有PANI的N掺杂AC催化剂具有显着改善的催化活性和稳定性。结果表明,氮物种在乙炔氢氯化反应中的作用顺序如下:吡咯氮>石墨氮>吡啶氮。这是聚氯乙烯工业作为有毒HgCl2的无金属替代品的一种绿色,可持续的工艺。其成本低,环境稳定性好,催化性能优异。

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