Room temperature propylene dehydrogenation and linear atomic chain formation on Ni(111)
| Autor: | Pavlova, T. V., Kovalenko, S. L., Eltsov, K. N. |
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| Rok vydání: | 2019 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1021/acs.jpcc.9b11942 |
| Popis: | The structures formed by propylene adsorption on Ni(111) at room temperature are determined by a combination of scanning tunneling microscopy and density functional theory. As a result of the interaction with the Ni(111) surface, propylene molecules are dehydrogenated and coupled into linear hydrocarbon chains. The length of the chains varies from 8 to 60A, with the most frequently observed length of 18A. At saturated coverage, some chains are closed in rings with a diameter of 6A. A C12H12 model is proposed for most often observed chains. We demonstrate that the possibility of combining initial propylene molecules into chains appears after dehydrogenation of the CH3 fragment. Comment: 8 pages, 7 figures |
| Databáze: | arXiv |
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