Mesostructure of xerogels of hydrated zirconium dioxide

被引：15
|
作者：
Kopitsa, G. P. [1 ]
Ivanov, V. K.
Grigoriev, S. V.
Meskin, P. E.
Polezhaeva, O. S.
Garamus, V. M.
机构：
[1] Russian Acad Sci, Petersburg Nucl Phys Inst, Gatchina 188300, Russia
[2] Russian Acad Sci, NS Kurnakov Gen & Inorgan Chem Inst, Moscow 119991, Russia
[3] Moscow MV Lomonosov State Univ, Moscow 119899, Russia
[4] GKSS Forschungszentrum Geesthacht GmbH, D-21502 Geesthacht, Germany
来源：
JETP LETTERS | 2007年 / 85卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
D O I：
10.1134/S0021364007020063
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The fractal properties of xerogels of hydrated zirconium dioxide ZrO2, which are synthesized by precipitation from a zirconyl nitrate solution at various pH values, are studied. Small-angle neutron scattering data and low-temperature nitrogen adsorption data indicate the strong effect of the acidity of the medium on the fractal dimension of xerogels and the size of constituent monomer particles. It is shown that this effect is also characteristic of xerogels of hydrated hafnium dioxide HfO2, which is a chemical analogue of hydrated zirconium dioxide.
引用
收藏
页码：122 / 126
页数：5
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