Ruthenium Catalyst Supported on Multi-Walled Carbon Nanotubes for CO Oxidation
Open Access
- 1 January 2021
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in Modern Research in Catalysis
- Vol. 10 (03), 73-91
- https://doi.org/10.4236/mrc.2021.103005
Abstract
This work proposes the synthesis of the 5%wt Ru on MWCNT catalyst and the influence of feed rate and testing variables for low-temperature oxidation affecting the CO2 yield. Morphology and incorporation of the nanoparticles in carbon nanotubes were investigated by specific surface area (BET method); thermogravimetric analyses (TGA); X-ray diffraction; Raman spectroscopy, transmission electron microscopy (TEM) and XPS. The conversions of CO and O2 were mostly 100% in groups C1 and C2 (temperature between 200 and 500°C with low WHSV). In order to assess the effect of mass on catalytic activity, condition C3 was tested at even lower temperatures. In the tested catalyst, high activity (100% CO and O2 conversion) was observed, keeping it active under reaction conditions, suggesting oxi-reduction of the RuO2 at surface without affecting the MWCNT but Lewis acid influencing the CO2 yield.Keywords
This publication has 44 references indexed in Scilit:
- Pharmaceutical characterization of solid and dispersed carbon nanotubes as nanoexcipientsInternational Journal of Nanomedicine, 2012
- Copper Manganese Oxide Catalysts Modified by Gold Deposition: The Influence on Activity for Ambient Temperature Carbon Monoxide OxidationCatalysis Letters, 2010
- Ceria-zirconia supported gold catalystsAnnales UMCS Chemia, 2009
- CO oxidation trends on Pt-group metals from ultrahigh vacuum to near atmospheric pressures: A combined in situ PM-IRAS and reaction kinetics studySurface Science, 2009
- Studies of Multiwall Carbon Nanotubes Using Raman Spectroscopy and Atomic Force MicroscopySolid State Phenomena, 2004
- Catalytic CO oxidation over ruthenium––bridging the pressure gapProgress in Surface Science, 2003
- Mordenite-Supported Noble Metal Catalysts for Selective Oxidation of Carbon Monoxide in a Reformed GasChemistry Letters, 2000
- Raman Spectra and X-Ray Diffraction Patterns of Carbon Nanotubes Prepared by Hydrogen Arc DischargeJapanese Journal of Applied Physics, 1998
- Carbon monoxide oxidation over rhodium and ruthenium: a comparative studyThe Journal of Physical Chemistry, 1986
- Catalytic oxidation of carbon monoxide over rhodium/silicon dioxide. An in situ infrared and kinetic studyThe Journal of Physical Chemistry, 1984