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- Improved activity and stability of Ce-promoted Ni/γ-A1 2O3 catalysts for carbon dioxide reforming of methane
- Universidade Federal de Santa Catarina (UFSC)
- Universidade Federal de São Carlos (UFSCar)
- Universidade Estadual Paulista (UNESP)
- The CO2 reforming of CH4 was carried out over Ni catalysts supported on γ-Al2O3 and CeO 2-promoted γ-Al2O3. The catalysts were characterized by means of surface area measurements, TPR, CO2 and H2 chemisorption, XRD, SEM, and TEM. The CeO2 addition promoted an increase of catalytic activity and stability. The improvement in the resistance to carbon deposition is attributed to the highest CO2 adsorption presented by the CeO2 addition. The catalytic behavior presented by the samples, with a different CH4/CO2 ratio used, points to the CH4 decomposition reaction as the main source of carbon deposition.
- Latin American Applied Research, v. 34, n. 3, p. 165-172, 2004.
- Carbon formation
- Dry reforming
- Carbon dioxide
- Reforming reactions
- Scanning electron microscopy
- Temperature programmed desorption
- Transmission electron microscopy
- X ray diffraction analysis
- Carbon formations
- Greenhouse gases
- Catalyst activity
- Acesso aberto
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