  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.
