Vanadium pentoxide gelsIII. X-ray and neutron diffraction study of highly concentrated systems: One-dimensional swelling
Vanadium pentoxide gelsIII. X-ray and neutron diffraction study of highly concentrated systems: One-dimensional swelling
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DOI：
10.1016/0021-9797(84)90173-5
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发表时间：
1984-04
期刊：
影响因子：
--
通讯作者：
P. Aldebert;Hans‐W. Haesslin;N. Baffier;J. Livage
中科院分区：
文献类型：
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作者：
P. Aldebert;Hans‐W. Haesslin;N. Baffier;J. Livage
用X射线衍射法和广角中子散射法研究了V2O5片状水凝胶在高浓度范围内，即从接近于零到约20H2O/V2O5的水溶胀。对基岩间距随含水率变化的研究清楚地表明，在水化的第一阶段，基准面间距几乎是一维的膨胀行为，至少可达3层层间水层，以后可能更连续。从实验的不确定性和凝胶的本征性质两方面讨论了与理想模型的微小偏差。
The swelling by water of V2O5lamellar hydrogels in the highly concentrated range, i.e., from nearly zero to about 20 H2O per V2O5has been investigated by means of X-ray diffraction and wide angle neutron scattering (WANS). The study of the basald-spacing variation with water content clearly asserts an almost one-dimensional swelling behavior, stepwise in first stages of hydration up to 3 interlamellar water layers at least, and probably more continuous beyond. Slight deviations from the ideal model are discussed both in terms of experimental uncertainties and intrinsic gel properties.