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

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...

Full description

Saved in:
Bibliographic Details
Published inarXiv.org
Main Authors Yorov, K E, Shekunova, T O, Baranchikov, A E, Kopitsa, G P, Almasy, L, Skogareva, L S, Kozik, V V, Malkova, A N, Lermontov, S A, Ivanov, V K
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 12.03.2018
Subjects
Aerogels
Catalysis
Fourier transforms
Hydrogen
Ion exchange
Neutron scattering
Neutrons
Physics - Materials Science
Porosity
Rare earth phosphates
Sol-gel processes
X ray photoelectron spectroscopy
Online AccessGet full text

Cover

More Information
Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.1803.04361