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@ARTICLE{Rudani:1040330,
      author       = {Rudani, Binny A. and Briels, Willem and Wiegand, Simone},
      title        = {{A}nalyzing the concentration-dependent {S}oret coefficient
                      minimum in salt solutions: an overview},
      journal      = {Physical chemistry, chemical physics},
      volume       = {27},
      number       = {9},
      issn         = {1463-9076},
      address      = {Cambridge},
      publisher    = {RSC Publ.},
      reportid     = {FZJ-2025-01843},
      pages        = {4746-4755},
      year         = {2025},
      abstract     = {Temperature gradients often cause the separation of the
                      components in liquid mixtures by a process called
                      thermodiffusion and quantified by the Soret coefficient. In
                      recent years, the existence of minima in the Soret
                      coefficient as a function of concentration has been
                      investigated by experiments and simulations for various
                      aqueous salt solutions. In this paper, we analyze the data
                      of ten 1 : 1 electrolytes (lithium, sodium and potassium
                      chloride, lithium, sodium and potassium iodide, potassium
                      acetate, sodium and potassium thiocyanate and guanidinium
                      chloride) in water, together with those of newly measured
                      Soret coefficients for aqueous cesium iodide solutions. The
                      latter were measured in the temperature range between 15 °C
                      and 45 °C and concentrations between 0.5 and 3 moles per kg
                      of the solvent using thermal diffusion forced Rayleigh
                      scattering. We analyze the data by expressing the Soret
                      coefficients as products of two factors, one purely
                      thermodynamic factor and one being the ratio of two Onsager
                      coefficients. It turns out that the ratio of Onsager
                      coefficients is the main factor responsible for the
                      non-monotonic behavior of the Soret coefficients, contrary
                      to recent findings using computer simulations of binary
                      Lennard-Jones mixtures. Moreover, for salts with the same
                      anion, we find that the thermodynamic factors increase with
                      increasing Pauling radii of the cations, while the Onsager
                      ratios increase monotonically with the radii of the hydrated
                      cations.},
      cin          = {IBI-4},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IBI-4-20200312},
      pnm          = {5241 - Molecular Information Processing in Cellular Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5241},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {39946123},
      UT           = {WOS:001419712200001},
      doi          = {10.1039/D4CP04477K},
      url          = {https://juser.fz-juelich.de/record/1040330},
}