METHOD OF PRODUCING GERMANIUM DIOXIDE AIRGEL BY EPOXIDE-INDUCED SOL-GEL METHOD IN APROTIC SOLVENT Russian patent published in 2024 - IPC C01B17/02 B82Y40/00 

Abstract RU 2830767 C1

FIELD: performing operations.

SUBSTANCE: invention can be used in luminescent, catalytic and anode technologies. Method of producing monolithic airgel of amorphous germanium dioxide is based on a sol-gel method using supercritical drying technology. Precursor used is germanium tetrachloride, which is dissolved in butyl acetate to concentration of 0.15-0.36 mol/l. Propylene oxide is added to the obtained solution. Then the solution is cooled to minus 18 °C, and solution of concentrated 36.5 wt.% hydrochloric acid is added with and under ultrasonic action until complete homogenisation of the sol. Molar ratios of GeCl4 : butyl acetate : HCl : propylene oxide in the obtained ash are 1:20:4:10 or 1:50:5:10. Obtained monolithic lyogel is held at room temperature for a day and then dried under supercritical drying conditions in CO2.

EFFECT: use of germanium tetra-alkoxides which are unstable during storage is excluded.

1 cl, 2 dwg, 7 ex

Similar patents RU2830767C1

Title Year Author Number
METHOD FOR PRODUCING AIRGEL BASED ON AMORPHOUS GERMANIUM DIOXIDE 2022
  • Gajtko Olga Maksimovna
  • Veselova Varvara Olegovna
  • Khvoshchevskaya Darya Alekseevna
  • Kottsov Sergej Yurevich
RU2796091C1
METHOD OF PRODUCING HYDROPHOBIC SILICA AIRGEL 2024
  • Dedov Aleksej Georgievich
  • Buznik Vyacheslav Mikhajlovich
  • Ivanov Vladimir Konstantinovich
  • Baranchikov Aleksandr Evgenevich
  • Sandzhieva Delgir Andreevna
  • Polevoj Leonid Alekseevich
  • Ubushaeva Baira Vladimirovna
RU2838461C1
METHOD OF PRODUCING AEROGELS AND AEROGELS OBTAINED THEREBY 2019
  • Hintemann, Damian
  • Kilzer, Andreas
  • Moelders, Nils
  • Renner, Manfred
  • Sengespeick, Andreas
  • Weidner, Eckhard
  • Weishaupt, Oliver
RU2836464C2
CATHODES BASED ON CARBON AIR GEL FOR LITHIUM-SULPHUR BATTERIES 2020
  • Zafiropulos, Nikolas
  • Guld, Dzhordzh
RU2815484C2
CATHODES BASED ON CARBON AEROGELS FOR LITHIUM AIR BATTERIES 2020
  • Zafiropulos, Nikolas
  • Guld, Dzhordzh
RU2801185C2
COMPOSITE CARBON AEROGEL CONTAINING METAL OXIDE AEROGEL AND METHOD FOR ITS PRODUCTION 2021
  • Elmanovich Igor Vladimirovich
  • Zefirov Vadim Viktorovich
RU2795582C1
METHOD OF PRODUCING OF AEROGELS BASED ON MULTILAYER CARBON NANOTUBES 2014
  • Kuznetsov Vladimir Lvovich
  • Krasnikov Dmitrij Viktorovich
  • Kazakova Marija Aleksandrovna
  • Moseenkov Sergej Ivanovich
RU2577273C1
INSULATIVE COMPOSITE MATERIALS CONTAINING INORGANIC AEROGEL AND MOLAMINE FOAM 2014
  • Bonnardel Per-Antuan
  • Shosson Sofi
  • Zherarden Emili
RU2653154C2
METHOD OF PRODUCING AEROGELS ON SiO BASIS 2023
  • Arzumanyan Ashot Vachikovich
  • Kholodkov Dmitrij Nikolaevich
  • Kubrin Gleb Evgenevich
RU2814667C1
SOL-GEL METHOD OF PRODUCING SILICON DIOXIDE AEROGELS 2016
  • Grandi, Stefania
  • Mustarelli, Piercarlo
  • Nulli, Andrea
  • Achilli, Cesare
RU2704219C2

RU 2 830 767 C1

Authors

Gajtko Olga Maksimovna

Veselova Varvara Olegovna

Kottsov Sergej Yurevich

Dates

2024-11-25Published

2024-04-11Filed