Origin of the Excellent Performance of Ru on Nitrogen-Doped Carbon Nanofibers for CO 2 Hydrogenation to CH 4

Carbon materials have rarely been used as support for CO methanation, which is usually carried out using catalysts supported on metal oxides. Here, it is shown that Ru nanoparticles supported on nitrogen-doped carbon nanofibers (NCNF) provide competitive CH production rate and stability compared to...

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Bibliographic Details
Published in:ChemSusChem 2017-03, Vol.10 (6), p.1139-1144
Main Authors: Roldán, Laura, Marco, Yanila, García-Bordejé, Enrique
Format: Article
Language:English
Subjects:
Adsorption
Aluminum Oxide - chemistry
Carbon - chemistry
Carbon Dioxide - chemistry
Catalysis
Hydrogenation
Kinetics
Methane - chemistry
Nanofibers - chemistry
Nanotubes, Carbon - chemistry
Nitrogen - chemistry
Ruthenium - chemistry
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Summary:Carbon materials have rarely been used as support for CO methanation, which is usually carried out using catalysts supported on metal oxides. Here, it is shown that Ru nanoparticles supported on nitrogen-doped carbon nanofibers (NCNF) provide competitive CH production rate and stability compared to Al O -supported catalysts. Contrary to the general belief about the inert nature of carbon supports, it is demonstrated that NCNF is a non-innocent spectator in CO methanation due to its ability to store a high amount of CO reaction intermediates. This explains the excellent catalytic behaviour afforded by this unconventional catalyst support.
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.201601217