Journal
APPLIED SCIENCES-BASEL
Volume 10, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/app10093083
Keywords
structured catalyst; metallic support; Ni-based catalyst; wash-coating; DRM; catalytic tests; carbon formation; SOFC pre-reformer
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Funding
- Italian Ministry for Education, University and Research MiUR [PRIN-2017-Prot.2017FCFYHK_004]
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A structured catalyst for the dry reforming of methane (DRM) was investigated as a biogas pre-reformer for indirect internal reforming solid oxide fuel cell (IIR-SOFC). For this purpose, a NiCrAl open-cell foam was chosen as support and Ni-based samarium doped ceria (Ni-SmDC) as catalyst. Ni-SmDC powder is a highly performing catalyst showing a remarkable carbon resistance due to the presence of oxygen vacancies that promote coke gasification by CO2 activation. Ni-SmDC powder was deposited on the metallic support by wash-coating method. The metallic foam, the powder, and the structured catalyst were characterized by several techniques such as: N-2 adsorption-desorption technique, X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), focused ion beam (FIB), temperature programmed reduction (H-2-TPR), and Raman spectroscopy. Catalytic tests were performed on structured catalysts to evaluate activity, selectivity, and stability at SOFC operating conditions.
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