Nano-Ru Supported on Ni Nanowires for Low-Temperature Carbon Dioxide Methanation

Tomasz Siudyga; Maciej Kapkowski; Dawid Janas; Tomasz Wasiak; Rafał Sitko; Maciej Zubko; Jacek Szade; Katarzyna Balin; Joanna Klimontko; Daniel Lach; Judyta Popiel; Adam Smoliński; Jaroslaw Polanski

doi:10.3390/catal10050513

Catalysts (May 2020)

Nano-Ru Supported on Ni Nanowires for Low-Temperature Carbon Dioxide Methanation

Tomasz Siudyga,
Maciej Kapkowski,
Dawid Janas,
Tomasz Wasiak,
Rafał Sitko,
Maciej Zubko,
Jacek Szade,
Katarzyna Balin,
Joanna Klimontko,
Daniel Lach,
Judyta Popiel,
Adam Smoliński,
Jaroslaw Polanski

Affiliations

Tomasz Siudyga: Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Maciej Kapkowski: Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Dawid Janas: Department of Chemistry, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland
Tomasz Wasiak: Department of Chemistry, Silesian University of Technology, B. Krzywoustego 4, 44-100 Gliwice, Poland
Rafał Sitko: Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Maciej Zubko: Faculty of Science and Technology, Institute of Materials Engineering, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
Jacek Szade: Faculty of Science and Technology, August Chełkowski Institute of Physics, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
Katarzyna Balin: Faculty of Science and Technology, August Chełkowski Institute of Physics, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
Joanna Klimontko: Faculty of Science and Technology, August Chełkowski Institute of Physics, University of Silesia, 75 Pułku Piechoty 1A, 41-500 Chorzów, Poland
Daniel Lach: Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
Judyta Popiel: BIT-MED Sp. z o.o., Polna 23, 42-400 Zawiercie, Poland
Adam Smoliński: Central Mining Institute, Plac Gwarkow 1, 40-166 Katowice, Poland
Jaroslaw Polanski: Faculty of Science and Technology, Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland

DOI: https://doi.org/10.3390/catal10050513
Journal volume & issue: Vol. 10, no. 5
p. 513

Abstract

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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 efficient 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 h−1. 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.

Published in Catalysts

ISSN: 2073-4344 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology; Science: Chemistry
Website: https://www.mdpi.com/journal/catalysts

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