Dry Reforming of Methane over Mn-modified Ni-based Catalysts

Alua M. Manabayeva, Päivi Mäki‐Arvela, Zuzana Vajglová, Mark E. Martínez‐Klimov, Olha Yevdokimova, Anssi Peuronen, Mika Lastusaari, Teija Tirri, Tolkyn S. Baizhumanova, Kaisar Kassymkan

6 more authors

Gulnar N. Kaumenova, Alexandr R. Brodskiy, Rabiga O. Sarsenova, Kamshat A. Shorayeva, Dmitry Yu. Murzin, Svetlana A. Tungatarova

2024

Full text Open access: Hybrid Metadata (CSL-JSON)

DOI 10.1007/s10562-024-04676-0

Data confidence 85 high

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Abstract

Abstract Ni-based bi- and trimetallic Mn, Mg and aluminum containing catalysts prepared by the solution combustion synthesis (SCS) method were tested in dry reforming of methane (DRM). As a comparison 12 wt.% Ni/α-Al2O3 catalyst prepared by wet impregnation was also investigated. The catalysts were characterized by means of XRD, N2 physisorption, H2-TPR, CO2-TPD, NH3-TPD, TPO, CHNS, TGA, SEM and TEM. Formation of crystalline MnAl2O4 was observed at high temperatures during SCS. The average nickel particle size varied in the range of 12–36 nm. Addition of Mn promoted reduction of Ni and elevated the amount and strength of the basic sites. Graphical Abstract