Charge inversion of divalent ionic solutions in silica channels

被引：53

作者：

Lorenz, Christian D. ^{[1
]}

Travesset, Alex ^{[1
]}

机构：

[1] Iowa State Univ, Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA

来源：

PHYSICAL REVIEW E | 2007年 / 75卷 / 06期

关键词：

D O I：

10.1103/PhysRevE.75.061202

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Recent experiments [F. H. J. van der Heyden , Phys. Rev. Lett. 96, 224502 (2006)] of streaming currents in silica nanochannels with divalent ions report charge inversion, i.e., interfacial charges attracting counterions in excess of their own nominal charge, in conflict with existing theoretical and simulation results. We reveal the mechanism of charge inversion by using all-atomic molecular dynamics simulations. Our results show excellent agreement with experiments, both qualitatively and quantitatively. We further discuss the implications of our study for the general problem of ionic correlations in solutions as well as in regards to the properties of silica-water interfaces.

引用

页数：5

共 37 条

[1] Quasi-ice monolayer on atomically smooth amorphous SiO2 at room temperature observed with a high-finesse optical resonator -: art. no. 166104 [J].

Aarts, IMP ;

Pipino, ACR ;

Hoefnagels, JPM ;

Kessels, WMM ;

van de Sanden, MCM .

PHYSICAL REVIEW LETTERS, 2005, 95 (16)

[2]

AQVIST J, 1990, J PHYS CHEM-US, V94, P8021, DOI 10.1021/j100384a009

[3] Evolution of the adsorbed water layer structure on silicon oxide at room temperature [J].

Asay, DB ;

Kim, SH .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (35) :16760-16763

[4] Statics and dynamics of strongly charged soft matter [J].

Boroudjerdi, H ;

Kim, YW ;

Naji, A ;

Netz, RR ;

Schlagberger, X ;

Serr, A .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 2005, 416 (3-4) :129-199

[5] ENERGY COMPONENT ANALYSIS FOR DILUTE AQUEOUS-SOLUTIONS OF LI+, NA+, F-, AND CL- IONS [J].

CHANDRASEKHAR, J ;

SPELLMEYER, DC ;

JORGENSEN, WL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1984, 106 (04) :903-910

[6] Systematic study of the effect of disorder on nanotribology of self-assembled monolayers [J].

Chandross, M ;

Webb, EB ;

Stevens, MJ ;

Grest, GS ;

Garofalini, SH .

PHYSICAL REVIEW LETTERS, 2004, 93 (16) :166103-1

[7] Molecular-dynamics simulations of ion size effects on the fluid structure of aqueous electrolyte systems between charged model electrodes [J].

Crozier, PS ;

Rowley, RL ;

Henderson, D .

JOURNAL OF CHEMICAL PHYSICS, 2001, 114 (17) :7513-7517

[8] Smoluchowski equation and the colloidal charge reversal [J].

Diehl, Alexandre ;

Levin, Yan .

JOURNAL OF CHEMICAL PHYSICS, 2006, 125 (05)

[9] Optically, defined multifunctional patterning of photosensitive thin-film silica mesophases [J].

Doshi, DA ;

Huesing, NK ;

Lu, MC ;

Fan, HY ;

Lu, YF ;

Simmons-Potter, K ;

Potter, BG ;

Hurd, AJ ;

Brinker, CJ .

SCIENCE, 2000, 290 (5489) :107-111

[10] Interfacial melting of ice in contact with SiO2 -: art. no. 205701 [J].

Engemann, S ;

Reichert, H ;

Dosch, H ;

Bilgram, J ;

Honkimäki, V ;

Snigirev, A .

PHYSICAL REVIEW LETTERS, 2004, 92 (20) :205701-1

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