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| Home > Publications database > Comparison of Different Methods for Calculating Effective Interactions and Pressure in Charge-stabilized Dispersions > print |
| 001 | 874672 | ||
| 005 | 20210130004740.0 | ||
| 037 | _ | _ | |a FZJ-2020-01588 |
| 100 | 1 | _ | |a Brito, Mariano |0 P:(DE-Juel1)168542 |b 0 |e Corresponding author |
| 111 | 2 | _ | |a 10th Liquid Matter Conference |c Ljubljana |d 2017-07-17 - 2020-03-21 |w Slovenia |
| 245 | _ | _ | |a Comparison of Different Methods for Calculating Effective Interactions and Pressure in Charge-stabilized Dispersions |
| 260 | _ | _ | |c 2017 |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
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| 520 | _ | _ | |a Charge-stabilized suspensions have interesting static and dynamic features, reflected in properties such as the suspension osmotic pressure, generalized sedimentation coefficient and viscosity. These properties are determined by electro-steric and (partially) by electro-hydrodynamic interactions. Due to the large size asymmetry between the colloidal macroions and the small microions, the degrees of freedom of the latter can be integrated out, resulting in an effective one-component interaction potential describing microion-dressed colloidal quasi-particles. We present a comparison, and partial extension, of various methods of calculating effective colloidal interaction parameters including effective charges and screening constants [1]. Additionally, we discuss osmotic suspension pressure calculations for dispersions in Donnan equilibrium with a salt ion reservoir. We discuss methods including cell-models [2,3], renormalized jellium models [4], and multi-colloid-centered mean-field models [5,6]. The pros and cons of the various methods are assessed by comparison with primitive model based computer simulations.References[1] M. Brito, J. Riest, A. Denton and G. Nägele, to be submitted (2017).[2] S. Alexander et al., J. Chem. Phys. 80, 5776 (1984).[3] E. Trizac et al., Langmuir 19, 4027 (2003).[4] S. Pianegonda et al., J. Chem. Phys. 126, 014702 (2007).[5] A. R, Denton, J. Phys.: Condens. Matter 20, 494230 (2008).[6] N. Boon et al., PNAS 112, 30, 9242, (2015). |
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| 700 | 1 | _ | |a Riest, Jonas |0 P:(DE-Juel1)156528 |b 1 |
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| 700 | 1 | _ | |a Naegele, Gerhard |0 P:(DE-Juel1)130858 |b 3 |
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