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- Title
{CeO2/Bi2Mo1−xRuxO6} and {Au/Bi2Mo1−xRuxO6} Catalysts for Low-Temperature CO Oxidation.
- Authors
González, Edson Edain; Rangel, Ricardo; Lara, Javier; Bartolo-Pérez, Pascual; Alvarado-Gil, Juan José; Galván, Donald Homero; García, Rafael
- Abstract
Nowadays, one of the most important challenges that humanity faces is to find alternative ways of reducing pollutant emissions. CeO2/Bi2Mo1−xRuxO6 and Au/Bi2Mo1−xRuxO6 catalysts were prepared to efficiently transform carbon monoxide (CO) to carbon dioxide (CO2) at low temperatures. The systems were prepared in a two-step process. First, Bi2Mo1−xRuxO6 supports were synthesized through the hydrothermal procedure under microwave heating. Then, CeO2 was deposited on Bi2Mo1−xRuxO6 using the wet impregnation method, while the incipient impregnation method was selected to deposit gold nanoparticles. The CeO2/Bi2Mo1−xRuxO6 and Au/Bi2Mo1−xRuxO6 catalysts were characterized using SEM microscopy and XRD. Furthermore, energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and Raman spectroscopy were used. Tests were carried out for the supported catalysts in CO oxidation, and high conversion values, nearing 100%, was observed in a temperature range of 100 to 250 °C. The results showed that the best system was the Au/Bi2Mo0.95Ru0.05O6 catalyst, with CO oxidation starting at 50 °C and reaching 100% conversion at 186 °C.
- Subjects
OXIDATION of carbon monoxide; METHANATION; X-ray photoelectron spectroscopy; MICROWAVE heating; CATALYSTS; SCANNING electron microscopy; GOLD nanoparticles; LOW temperatures
- Publication
Catalysts (2073-4344), 2019, Vol 9, Issue 11, p947
- ISSN
2073-4344
- Publication type
Article
- DOI
10.3390/catal9110947