Control over morphology of magnesium-aluminum hydrosilicate nanoscrolls |
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| Authors: | A A Krasilin V V Gusarov |
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| Institution: | 1.St. Petersburg State Technological Institute,Technical University,St. Petersburg,Russia |
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| Abstract: | It is shown that the morphology of nanoparticles based on variable-composition compounds (Mg,Al)3(Si,Al)2O5(OH)4 can be controlled by varying the content of aluminum, x Al. Nanoparticles with both tubular (x Al = 0 mol %) and plate-like (x Al = 5 mol %) morphologies were obtained by synthesis of nanoparticles under hydrothermal conditions at 350°C and 30 MPa in an aqueous solution of 0.5 M NaOH. A calculation analysis of the existence conditions of the tubular and plate-like forms of (Mg,Al)3(Si,Al)2O5(OH)4 compounds was made. The tubular morphology can be potentially obtained in a wider range of xAl values than that observed in the experiment. |
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