Synthesis and comparative studies of xerogels, aerogels, and powders based on the ZrO2–Y2O3–СeO2 system
- Авторлар: Koval’ko N.1, Kalinina M.1, Malkova A.2, Lermontov S.2, Morozova L.1, Polyakova I.1, Shilova O.1,3
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Мекемелер:
- Grebenshchikov Institute of Silicate Chemistry
- Institute of Physiologically Active Substances
- Ul’yanov (Lenin) St. Petersburg State Electrotechnical University LETI
- Шығарылым: Том 43, № 4 (2017)
- Беттер: 368-375
- Бөлім: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/216105
- DOI: https://doi.org/10.1134/S108765961704006X
- ID: 216105
Дәйексөз келтіру
Аннотация
The technology of liquid-phase synthesis of mesoporous xerogels and aerogels based on ZrO2–Y2O3–CeO2 is developed. Xerogels are obtained by the coprecipitation of hydroxides, while aerogels are obtained in accordance with the sol–gel technology: the average pore size is 1.5–17.2 nm and the specific surface area is 120–878 m2/g. Aerogels are characterized by a high degree of porosity: the pore volume attains 1–4 cm3/g. Based on precursor xerogels, nanopowders of a tetragonal solid solution of the (ZrО2)0.92(Y2О3)0.03(CeО2)0.05 composition with a particle size of 5–9 nm and Sspec = 74 m2/g were fabricated. Due to the high values of their specific surface area, the synthesized xerogels and aerogels are promising as sorbents, catalysts, or catalyst supports.
Авторлар туралы
N. Koval’ko
Grebenshchikov Institute of Silicate Chemistry
Хат алмасуға жауапты Автор.
Email: kovalko.n.yu@gmail.com
Ресей, St. Petersburg, 199034
M. Kalinina
Grebenshchikov Institute of Silicate Chemistry
Email: kovalko.n.yu@gmail.com
Ресей, St. Petersburg, 199034
A. Malkova
Institute of Physiologically Active Substances
Email: kovalko.n.yu@gmail.com
Ресей, Chernogolovka, Moscow oblast, 142432
S. Lermontov
Institute of Physiologically Active Substances
Email: kovalko.n.yu@gmail.com
Ресей, Chernogolovka, Moscow oblast, 142432
L. Morozova
Grebenshchikov Institute of Silicate Chemistry
Email: kovalko.n.yu@gmail.com
Ресей, St. Petersburg, 199034
I. Polyakova
Grebenshchikov Institute of Silicate Chemistry
Email: kovalko.n.yu@gmail.com
Ресей, St. Petersburg, 199034
O. Shilova
Grebenshchikov Institute of Silicate Chemistry; Ul’yanov (Lenin) St. Petersburg State Electrotechnical University LETI
Email: kovalko.n.yu@gmail.com
Ресей, St. Petersburg, 199034; St. Petersburg, 197022