1D Ceric Hydrogen Phosphate Aerogels: Noncarbonaceous Ultraflyweight Monolithic Aerogels

Taisiya O Kozlova; Alexander E Baranchikov; Daniil A Kozlov; Andrey V Gavrikov; Gennady P Kopitsa; Alexey D Yapryntsev; Konstantin B Ustinovich; Alexis Chennevière; Vladimir K Ivanov

doi:10.1021/acsomega.0c02061

1D Ceric Hydrogen Phosphate Aerogels: Noncarbonaceous Ultraflyweight Monolithic Aerogels

ACS Omega. 2020 Jul 7;5(28):17592-17600. doi: 10.1021/acsomega.0c02061. eCollection 2020 Jul 21.

Authors

Affiliations

¹ Lomonosov Moscow State University, Leninskie Gory, 1, Moscow, 119991, Russia.
² Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Leninsky prospect, 31, Moscow, 119991, Russia.
³ Petersburg Nuclear Physics Institute of National Research Centre "Kurchatov Institute", Leningradskaya oblast, mkr. Orlova roshcha, 1, Gatchina 188300, Russia.
⁴ Grebenshchikov Institute of Silicate Chemistry of the Russian Academy of Sciences, Naberezhnaya Adm. Makarova, 2, St. Petersburg, 199034, Russia.
⁵ Université Paris Saclay, Laboratoire Léon Brillouin, CEA-CNRS, CEA Saclay, Cedex, Gif-sur-Yvette 91191, France.

Abstract

Ceric hydrogen phosphate gels possess a very unique spatial organization, being nearly amorphous materials with a fibrous structure. Using a sol-gel approach, we succeeded in preparing bulky gels containing as much as 20,000 molecules of water per cerium atom. Supercritical treatment of these gels made it possible to obtain the first ultralight monolithic noncarbonaceous aerogels with a density as low as 1 mg/cm³.