In:
Energy Science & Engineering, Wiley, Vol. 11, No. 4 ( 2023-04), p. 1436-1450
Abstract:
Finding a robust catalytic system for hydrogen production via dry reforming of methane (DRM) remains a challenge. Herein, MNi 0.9 Zr 1 − x Y x O 3 (M = Ce, La, and La 0.6 Ce 0.4 ; x = 0.00, 0.05, 0.07, and 0.09) catalyst was prepared by the sol–gel method, tested for DRM and characterized by surface area and porosity, X‐ray diffraction, H 2 ‐temperature programmed reduction, thermogravimetry, and transmission electron microscopy. In La 0.6 Ce 0.4 NiO 3 catalyst, the substitution of Ni by 0.1% Zr results in a constant high catalytic activity (83% hydrogen yield at 800°C) due to the presence of reducible “NiO‐species interacted strongly with the support” (stable metallic Ni over reduced catalyst) and redox input by ceria phase for laying instant lattice oxygen during lag‐off period of CO 2 . Substitution of Ni by Zr and Y in the CeNiO 3 catalyst system nurtures Ni 3 Y (providing highly stable metallic Ni for CH 4 decomposition) and cerium yttrium oxide phases (providing strong redox input). CeNi 0.9 Zr 0.01 Y 0.09 O 3 shows 85% H 2 yield at 800°C.
Type of Medium:
Online Resource
ISSN:
2050-0505
,
2050-0505
Language:
English
Publisher:
Wiley
Publication Date:
2023
detail.hit.zdb_id:
2720339-6
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