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Study of the Conditions for Ceramic and Mechanochemical Synthesis of CuO/ZnO/γ-Al2O3 Composites

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The preparation process for the composites CuO/ZnO/γ-Al2O3, which can be used as the main component of catalysts for large-tonnage methanol production and carbon monoxide conversion, was investigated by means of x-ray phase, x-ray crystalline, and synchronous thermal analysis as well as scanning electron microscopy, and low-temperature adsorption-desorption of nitrogen. The influence of the production method and the nature and intensity of processing on the phase composition of the resulting precursors and the physicochemical properties of the resulting composites was determined. The processes occurring at the stage of mechanochemical activation of a mixture of anhydrous oxides CuO/ZnO/γ-Al2O3 and a mixture of oxides with ammonium carbonate and ethanedioic [oxalic] acid were studied. The optimal parameters for obtaining CuO/ZnO/γ-Al2O3 composites with a developed specific surface and porous structure were determined.

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The authors thank the staff at the Center for Collective Use of Scientific Equipment at ISUTU for access to the instrument base purchased with the support of the Ministry of Education and Science of Russia, grant No. 075-15-2021-671. This work was supported by Russian Science Foundation grant No. 21-73-10210, https://rscf.ru/project/21-73-10210/

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Correspondence to R. N. Rumyantsev.

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Translated from Steklo i Keramika, No. 9, pp. 22 – 32, September, 2023.

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Rumyantsev, R.N., Kournikova, A.A., Ily’in, A.A. et al. Study of the Conditions for Ceramic and Mechanochemical Synthesis of CuO/ZnO/γ-Al2O3 Composites. Glass Ceram 80, 370–377 (2024). https://doi.org/10.1007/s10717-023-00617-2

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