کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1792838 | 1023659 | 2010 | 8 صفحه PDF | دانلود رایگان |

GenMolTM code is used to simulate Atomic Force Microscopy (AFM) tests at a kaolinite/brine/kaolinite contact, the confined fluid in sub-nanometre interspaces being in equilibrium with an external multi-species solution. The attraction/repulsion effort, i.e. the derivative versus the interspace aperture h of the interaction energy between both kaolinite faces, is computed versus the variable composition of the confined fluid (see for the method Part I of this work). Two external solutions are tested. Solution S1 is a neutral brine (pH=7.5) leading to a possible attraction for apertures lower than 7 Å. Solution S2 is an acidified brine (pH=3.2) leading to repulsion whatever may be the aperture h. These two AFM simulations prove the existence of a critical pH value (3.2
Journal: Journal of Crystal Growth - Volume 312, Issue 22, 1 November 2010, Pages 3308–3315