Efficient and stable to coking catalysts of ethanol steam reforming comprised of Ni + Ru loaded on MgAl2O4 + LnFe0.7Ni0.3O3 (Ln = La, Pr) nanocomposites prepared via cost-effective procedure with Pluronic P123 copolymer
Massalimova B. Sadykov V. Totenova N. Fedorova J. Glazneva T. Krieger T. Ishchenko A. Rogov V.
1 January 2024Walter de Gruyter GmbH
Open Chemistry
2024#22Issue 1
Mesoporous MgAl2O4 + LnFe0.7Ni0.3O3 (Ln = La, Pr) nanocomposites were prepared by a cost-effective one-pot procedure with the Pluronic P123 copolymer and Ni + Ru active components were supported on them by wet impregnation. The real structure of samples was studied by X-ray diffraction and transmission electron microscopy with energy-dispersive X-ray spectroscopy, surface properties were determined by Fourier transform infrared spectroscopy of adsorbed CO, reactivity was evaluated by temperature programmed reduction by H2, and catalytic activity was tested in ethanol steam reforming (ESR). Disordering of the real structure of nanocomposite supports due to incorporation of transition metal cations into MgAl2O4 results in the development of a metal-support interface and domination of single surface metal centers. This provides a high catalytic activity in the ESR reaction in the intermediate temperature range ∼550°C, close to that of the best known catalysts, and stability to coking. A higher activity for the Pr-containing catalyst is provided by the high reactivity of surface oxygen species bound with Pr cations.
ethanol steam reforming , FTIRS of adsorbed CO , nanocomposite spinel + perovskite supports + Ni + Ru , one-pot synthesis with the Pluronic P123 copolymer , surface sites
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Department of Chemistry and Chemical Technology, Manash Kozybayev North Kazakhstan University, Pushkin Str 86, Petropavl, 150000, Kazakhstan
Federal Research Center, Boreskov Institute of Catalysis SB RAS, Novosibirsk, 630090, Russian Federation
Department of Natural Sciences, Novosibirsk State University, Novosibirsk, 630090, Russian Federation
Department of Chemistry and Chemical Technology, M. Kh. Dulaty Taraz Regional University, Taraz, 080000, Kazakhstan
Department of Chemistry and Chemical Technology
Federal Research Center
Department of Natural Sciences
Department of Chemistry and Chemical Technology
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