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arXiv · 1803.04361

First rare-earth phosphate aerogel: sol-gel synthesis of monolithic ceric hydrogen phosphate aerogel

K. E. Yorov·T. O. Shekunova·A. E. Baranchikov·G. P. Kopitsa·L. Almasy·L. S. Skogareva·V. V. Kozik·A. N. Malkova·S. A. Lermontov·V. K. Ivanov
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Abstract

Since the late 1960s, ceric hydrogen phosphates have attracted the attention of scientists due to remarkable ion exchange, sorption, proton-conduction and catalytic properties. In this work, through the application of various solvents, we, for the first time, have obtained monolithic aerogels based on ceric hydrogen phosphates with high porosity (~99%) and extremely low density (~10 microg/cm3). The composition and structure of aerogels were thoroughly studied with XRD, TEM, SEM, XPS, low temperature nitrogen adsorption methods, TGA/DSC, Fourier-transform infrared spectroscopy (FTIR) and small-angle neutron scattering (SANS). The aerogels were found to belong to the fibrous macroporous aerogels family.

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K. E. Yorov, T. O. Shekunova, A. E. Baranchikov, G. P. Kopitsa, L. Almasy, L. S. Skogareva, V. V. Kozik, A. N. Malkova, S. A. Lermontov, V. K. Ivanov. 2018-03-12. First rare-earth phosphate aerogel: sol-gel synthesis of monolithic ceric hydrogen phosphate aerogel. https://doi.org/10.1007/s10971-018-4584-3

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