![]() ![]() Kukushkin, R.G., Eletskii, P.M., Bulavchenko, O.A., Saraev, A.A., and Yakovlev, V.A., Catal. The use of Ce and Mn decreased the average CSR size of Ni by a factor of 2–5 compared to that of massive NiO.Īlekseeva, M.V., Rekhtina, M.A., Lebedev, M.Y., Zavarukhin, S.G., Kaichev, V.V., Venderbosch, R.H., and Yakovlev, V.A., ChemistrySelect, 2018, vol. In addition, the effect of modifying additives on the particle size of the final metal was revealed. The use of these additives led to an increase in the temperature of NiO reduction to a metallic state compared to that of the massive oxide. For Ce and Zr, the release of the oxide CeO 2 and X-ray amorphous ZrO x was observed. The introduction of Mn and Co led to the formation of substitutional solid solutions with the oxide NiO. It was found that the modifiers changed the structure and microstructure of the initial samples to increase the specific surface area and decrease the average coherent scattering region (CSR) sizes of NiO. The effect of additives on the initial state of the samples was studied by X-ray diffraction (XRD) analysis, and their role in the process of NiO reduction was studied using in situ XRD analysis and temperature-programmed reduction with hydrogen (TPR-H 2). The activation of a series of catalysts with the general formula Ni 0.9M 0.1O (M = Co, Ce, Mn, and Zr) synthesized by coprecipitation and the effect of modifying additives on the phase composition and structure of these catalysts were studied. ![]()
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