通过星际多环芳烃的超氢化作用进行的H催化
H catalysis through superhydrogenation of interstellar polycyclic aromatic hydrocarbons.
作者信息
Simonsen Frederik Doktor S, Jensen Pernille A, Skov Anders W, Jaganathan Rijutha, Thrower John D, Hornekær Liv
机构信息
Department of Physics & Astronomy, Aarhus University, 8000 Aarhus C, Denmark.
Interdisciplinary Nanoscience Center (iNANO), Aarhus University, 8000 Aarhus C, Denmark.
出版信息
Proc Int Astron Union. 2019 Apr;15(Suppl 350):264-266. doi: 10.1017/S1743921320000034. Epub 2020 Oct 12.
Experimental data showing superhydrogation of neutral polycyclic aromatic hydrocarbons (PAHs) coronene, pentacene and pentacenequinone is presented. PAH monolayers were prepared on a highly oriented pyrolytic graphite surface and subsequently exposed to a beam of atomic hydrogen. The superhydrogenated PAH species were examined via temperature programmed desorption measurements. Stable intermediate superhydrogenation degrees as well as fully superhydrogenated species are observed and the initial reaction cross section for coronene has been determined.
本文展示了中性多环芳烃（PAHs）蒄、并五苯和并五苯醌超氢化的实验数据。在高度定向热解石墨表面制备PAH单分子层，随后将其暴露于氢原子束中。通过程序升温脱附测量对超氢化PAH物种进行了研究。观察到稳定的中间超氢化度以及完全超氢化的物种，并确定了蒄的初始反应截面。
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