http://hdl.handle.net/20.500.12128/13927
Title: | Nano-Ru Supported on Ni Nanowires for Low-Temperature Carbon Dioxide Methanation |
Authors: | Siudyga, Tomasz Kapkowski, Maciej Janas, Dawid Wasiak, Tomasz Sitko, Rafał Zubko, Maciej Szade, Jacek Balin, Katarzyna Klimontko, Joanna Lach, Daniel Popiel, Judyta Smoliński, Adam Polański, Jarosław |
Keywords: | methanation; carbon dioxide; nanoparticles; nanowires; catalysis |
Issue Date: | 2020 |
Citation: | "Catalysts" Vol. 10, iss. 5 (2020), art. no 513 |
Abstract: | In this study, we investigated the catalytic performance of Ru nanoparticles (NPs) supported on Ni-nanowires for the first time. This appears to be a highly e cient catalyst for low-temperature methanation, e.g., ca. 100% conversion and 100% of CH4 selectivity can be achieved at ca. 179 C, while the turnover frequency (TOF) value was 2479.2 h1. At the same time, the onset of a reaction was observed at a temperature as low as 130 C. The comparison of nano-Pd and nano-Ru supported on Ni-nanowires enabled us to prove that oxidized surface metals are highly important for the high activity of the investigated nano-Ru@nanowired-Ni. Moreover, similar to the microscopic Sabatier rule, which indicates that some optimal reactivity level of a catalyst exists, we showed that Ni-nanowires (a higher specific surface area than a standard metal surface, e.g., in the form of a metal foam, but lower than nano-sized materials) significantly enhances the performance of the Ru-Ni catalytic system. |
URI: | http://hdl.handle.net/20.500.12128/13927 |
DOI: | 10.3390/catal10050513 |
ISSN: | 2073-4344 |
Appears in Collections: | Artykuły (WNŚiT) |
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Siudyga_Nano-Ru_supported_on_Ni_nanowires_for_low-temperature_carbon.pdf | 2,42 MB | Adobe PDF | View/Open |
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