RT journal article
T1 Honeycomb monolithic design to enhance the performance of Ni-based catalysts for dry reforming of methane
A1 Agueniou, Fazia
A1 Vidal Muñoz, Hilario
A1 Yeste Siguenza, María del Pilar
A1 Hernández Garrido, Juan Carlos
A1 Cauqui López, Miguel Ángel
A1 Rodríguez-Izquierdo Gil, José María
A1 Calvino Gámez, José Juan
A1 Gatica Casas, José Manuel
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 Nickel
K1 ceria-zirconia
K1 dry reforming of methane
K1 honeycomb cordierite
K1 FID-(S)TEM
AB Supported Ni catalysts (4.5 wt%) using a Ce-Zr oxide (18/82 molar ratio and a ceria-rich surface) depicting advanced redox properties, were deposited by washcoating over cordierite honeycombs (230 and 400 cpsi). FIB-STEM unveiled nanostructure details otherwise undistinguishable by conventional techniques. The catalytic performance was evaluated in the dry reforming of methane at 700-900 ºC, using a CH4:CO2 1:1 feedstock, and exploring high Weight Hourly Space Velocity (115-346 L g-1 h-1). The structured catalysts exhibited better performance than the corresponding powders, reaching values close to thermodynamic limits for both reactants conversion and H2/CO ratio, from 750 ºC, and no deactivation was observed in prolonged experiments (24-48 hours). This was related to both the high catalyst efficiency after being deposited with low loading on the cordierite and the intrinsic advantages of the monolithic reactor, like preventing from the kinetic control that operates in powdered samples under high WHSV or limiting the deactivation.
PB Elsevier
SN 0920-5861
YR 2022
FD 2022-01-01
LK http://hdl.handle.net/10498/30065
UL http://hdl.handle.net/10498/30065
LA eng
NO The authors thank the financial support by the Ministry of Economy and Competitiveness of Spain/FEDER Program of the EU (Project MAT2017-87579-R), and the Junta de Andalucía (Groups FQM-110 and FQM-334). We also acknowledge the Cadiz University SC-ICyT for using its facilities for the ICP-AES, XRD, XRF and SEM-EDX measurements, and the Seville University CITIUS for the FIB-(S)TEM studies.
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026