Abstract
Using the sol–gel method, by reacting solutions of maleic acid and potassium permanganate, samples have been obtained with a turbostat stacking of layers, which is characteristic of the birnessite structure. Using X-ray phase and thermogravimetric analysis, Raman spectroscopy, and low-temperature nitrogen adsorption, the dependence of the textural–structural characteristics of the synthesized materials on the temperature of thermal modification (150, 360°C) and sample composition (Sr-form, H-form) has been shown. It has been found that all samples are characterized by a mesoporous texture. It is shown that the water content in the samples is closely related to the quantitative determination of the specific surface area: the more water, the greater the SBET value.
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Funding
This work was financially supported by the Russian Foundation for Basic Research, project no. 19-43-590012 and carried out using the equipment of The Core Facilities Center “Research of materials and matter” at the PFRC UB RAS.
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Translated by Sh. Galyaltdinov
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Saenko, E.V. Sol–Gel Synthesis and Textural–Structural Characteristics of Manganese Oxide: the Effect of Thermal-Modification Temperature. Polym. Sci. Ser. D 16, 518–521 (2023). https://doi.org/10.1134/S1995421223030279
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DOI: https://doi.org/10.1134/S1995421223030279