Hydrotermal stability and volumetric properties of mesoporous organic-inorganic composite materials based on MCM-41 according to the low-temperature adsorption / desorption of nitrogen and X-ray analysis. sorpchrom [Internet]. 2019 Nov. 25 [cited 2026 Apr. 3];12(5). Available from: https://journals.vsu.ru/sorpchrom/article/view/1861