Abstract
Using thermogravimetric analysis and differential scanning calorimetry in air and argon, we have studied the products of reactions between the B10H10 2− anion and water glass (WG) sodium silicates. The reaction products have the form of spatially branched supramolecular structures. Supramolecular structures of various compositions have been synthesized at initial WG/(Et 3NH)2B10H10 reactant ratios of 70/30, 60/40, 50/50, and 40/60. In the range 20–600℃, we have studied the following processes in the WG/B10H10 2− systems: removal of adsorbed water (50–200℃), condensation of silicates containing silanol groups (200–300℃), and oxidation of the B10H10 2− anion in the silicate matrix (300–600℃). All three processes have been shown to depend on content.
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Original Russian Text © V.K. Skachkova, L.V. Goeva, A.V. Grachev, V.V. Avdeeva, E.A. Malinina, A.Yu. Shaulov, A.A. Berlin, N.T. Kuznetsov, 2015, published in Neorganicheskie Materialy, 2015, Vol. 51, No. 7, pp. 803–807.
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Skachkova, V.K., Goeva, L.V., Grachev, A.V. et al. Thermal and thermo-oxidative properties of the decahydro-closo-decaborate anion B10H10 2− in a silicate matrix. Inorg Mater 51, 736–740 (2015). https://doi.org/10.1134/S0020168515070146
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DOI: https://doi.org/10.1134/S0020168515070146