Why Are Hydrophobic/Water Interfaces Negatively Charged?

被引：184
作者：
Roger, Kevin [1 ]
Cabane, Bernard [1 ,2 ]
机构：
[1] CNRS, PMMH, ESPCI, UMR 7636, F-75231 Paris 05, France
[2] Lund Univ, S-222100 Lund, Sweden
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2012年 / 51卷 / 23期
关键词：
carboxylic acids; colloids; electrophoresis; hydrophobic effect; interfaces; OIL/WATER INTERFACE; NEAT WATER; SURFACE; OIL; AUTOIONIZATION; EMULSION; IONS;
D O I：
10.1002/anie.201108228
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Impure at heart: A pH-dependent negative charge of the interface between a hydrophobic phase and water results from the reaction of hydroxide ions with traces of fatty acids, contained in the hydrophobic phase (see scheme). This reaction explains the uptake of hydroxide ions by the interface with a large free energy change. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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收藏
页码：5625 / 5628
页数：4
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