The structure of water near a charged crystalline surface

被引：7

作者：

Ricci, M. A. ^{[1
]}

Tudisca, V. ^{[1
]}

Bruni, F. ^{[1
]}

Mancinelli, R. ^{[1
]}

Scoppola, E. ^{[1
]}

Angelini, R. ^{[2
]}

Ruzicka, B. ^{[2
]}

Soper, A. K. ^{[3
]}

机构：

[1] Univ Roma Tre, Dipartimento Sci, Sezione Nanosci, I-00146 Rome, Italy

[2] Univ Roma La Sapienza, Dipartimento Fis, CNR, IPCF, I-00185 Rome, Italy

[3] Rutherford Appleton Lab, ISIS Facil, STFC, Didcot OX11 0QX, Oxon, England

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2015年 / 407卷

关键词：

Water; Neutron spectroscopy; Colloidal dispersions; COMPUTER-SIMULATION; LIQUID; LAPONITE; IONS; DYNAMICS; DENSITY; DIAGRAM; PHASE;

D O I：

10.1016/j.jnoncrysol.2014.08.014

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The structure of water near a synthetic clay surface, Laponite, is probed experimentally by total neutron scattering, in both liquid and arrested states. It is shown that the crystalline structure of the Laponite platelets and their charge distribution determine polarization of the closest water layers, with a local density higher than that of bulk water. Interestingly these layers show long range order in the plane parallel to the Laponite surface, while no indication of strong hydrogen bonding between water and Laponite is found. (c) 2014 Elsevier B.V. All rights reserved.

引用

页码：418 / 422

页数：5

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