Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Mesostructure, fractal properties and thermal decomposition of hydrous zirconia and hafnia. / Ivanov, V. K.; Kopitsa, G. P.; Baranchikov, A. Ye; Sharp, M.; Pranzas, K.; Grigoriev, S. V.
в: Russian Journal of Inorganic Chemistry, Том 54, № 14, 12.2009, стр. 2091-2106.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Mesostructure, fractal properties and thermal decomposition of hydrous zirconia and hafnia
AU - Ivanov, V. K.
AU - Kopitsa, G. P.
AU - Baranchikov, A. Ye
AU - Sharp, M.
AU - Pranzas, K.
AU - Grigoriev, S. V.
N1 - Funding Information: This work was supported by RFBR 09-03-12191-ofi-m and 07-02-00290-a grants. V.I., G.K., A.B. and S.G. would like to thank GKSS Forschungszentrum for hearty welcome.
PY - 2009/12
Y1 - 2009/12
N2 - By use of small angle and ultra small angle neutron scattering techniques it was established that amorphous xerogels of hydrous zirconia and hafnia possess fractal properties in a wide range of scales, and the fractal dimension of these materials can be intentionally modified by changing their precipitation pH. It was found that the changes in fractal dimension and specific surface area of hydrous zirconia and hafnia xerogels are governed by the changes in the adsorption of anions onto their surface. It was demonstrated that particle size and specific surface area of ZrO2 and HfO2 nanopowders prepared by thermal decomposition of hydrous zirconia and hafnia xerogels depends strongly on the mesostructure and synthesis conditions of these xerogels.
AB - By use of small angle and ultra small angle neutron scattering techniques it was established that amorphous xerogels of hydrous zirconia and hafnia possess fractal properties in a wide range of scales, and the fractal dimension of these materials can be intentionally modified by changing their precipitation pH. It was found that the changes in fractal dimension and specific surface area of hydrous zirconia and hafnia xerogels are governed by the changes in the adsorption of anions onto their surface. It was demonstrated that particle size and specific surface area of ZrO2 and HfO2 nanopowders prepared by thermal decomposition of hydrous zirconia and hafnia xerogels depends strongly on the mesostructure and synthesis conditions of these xerogels.
UR - http://www.scopus.com/inward/record.url?scp=75149184484&partnerID=8YFLogxK
U2 - 10.1134/S0036023609140022
DO - 10.1134/S0036023609140022
M3 - Article
AN - SCOPUS:75149184484
VL - 54
SP - 2091
EP - 2106
JO - Russian Journal of Inorganic Chemistry
JF - Russian Journal of Inorganic Chemistry
SN - 0036-0236
IS - 14
ER -
ID: 86429842