Synthesis and comparative studies of xerogels, aerogels, and powders based on the ZrO2–Y2O3–СeO2 system
- 作者: Koval’ko N.1, Kalinina M.1, Malkova A.2, Lermontov S.2, Morozova L.1, Polyakova I.1, Shilova O.1,3
-
隶属关系:
- Grebenshchikov Institute of Silicate Chemistry
- Institute of Physiologically Active Substances
- Ul’yanov (Lenin) St. Petersburg State Electrotechnical University LETI
- 期: 卷 43, 编号 4 (2017)
- 页面: 368-375
- 栏目: Article
- URL: https://journals.rcsi.science/1087-6596/article/view/216105
- DOI: https://doi.org/10.1134/S108765961704006X
- ID: 216105
如何引用文章
详细
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.
作者简介
N. Koval’ko
Grebenshchikov Institute of Silicate Chemistry
编辑信件的主要联系方式.
Email: kovalko.n.yu@gmail.com
俄罗斯联邦, St. Petersburg, 199034
M. Kalinina
Grebenshchikov Institute of Silicate Chemistry
Email: kovalko.n.yu@gmail.com
俄罗斯联邦, St. Petersburg, 199034
A. Malkova
Institute of Physiologically Active Substances
Email: kovalko.n.yu@gmail.com
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
S. Lermontov
Institute of Physiologically Active Substances
Email: kovalko.n.yu@gmail.com
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
L. Morozova
Grebenshchikov Institute of Silicate Chemistry
Email: kovalko.n.yu@gmail.com
俄罗斯联邦, St. Petersburg, 199034
I. Polyakova
Grebenshchikov Institute of Silicate Chemistry
Email: kovalko.n.yu@gmail.com
俄罗斯联邦, 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
俄罗斯联邦, St. Petersburg, 199034; St. Petersburg, 197022