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@ARTICLE{Wojciechowski:201083,
      author       = {Wojciechowski, Kamil and Gutberlet, Thomas and Konovalov,
                      Oleg},
      title        = {{A}nion-specificity at water–air interface probed by
                      total reflection {X}-ray fluorescence ({TRXF})},
      journal      = {Colloids and surfaces / A},
      volume       = {413},
      issn         = {0927-7757},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2015-03393},
      pages        = {184 - 190},
      year         = {2012},
      abstract     = {Accumulation of bromide ions in the Stern part of the
                      electrical double layer (EDL) near a Gibbs monolayer of
                      cationic surfactant, cetyltrimethylammonium bromide (CTABr),
                      at the water–air interface was probed by the total
                      reflection X-ray fluorescence (TRXF). A combination of TRXF
                      with surface tension data allowed for the first time to
                      determine the adsorbed amounts of bromide ions in the Stern
                      and diffuse parts of EDL. TRXF and X-ray reflectivity (XR)
                      were employed to probe the competitive adsorption of other
                      anions present in the aqueous solution. The Gibbs monolayers
                      of CTABr were studied in the absence and presence of
                      different anions from the Hofmeister series (Br−, NO3−,
                      F−, Cl−, H2PO4−, ClO4−, and I−) with the aim to
                      compare their affinity to the interface positively charged
                      by adsorption of surface-active CTA+ cation. For studying
                      the effect of anions on adsorption of CTABr, the
                      concentration of the latter was kept constant (10−4 M),
                      and that of NaX (X− = Br−, NO3−, F−, Cl−,
                      H2PO4−, ClO4−, and I−) was varied between 10−2 M and
                      10−5 M. The results clearly show the competition between
                      anions for the positively charged aqueous–air interface,
                      with F− being the least “surface active” and ClO4−
                      and I− – the most “surface active” anions, in full
                      agreement with the Hofmeister series.},
      cin          = {JCNS (München) ; Jülich Centre for Neutron Science JCNS
                      (München) ; JCNS-FRM-II / Neutronenstreuung ; JCNS-1 /
                      JCNS-2},
      ddc          = {540},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)JCNS-2-20110106},
      pnm          = {54G - JCNS (POF2-54G24)},
      pid          = {G:(DE-HGF)POF2-54G24},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000310184400030},
      doi          = {10.1016/j.colsurfa.2012.06.045},
      url          = {https://juser.fz-juelich.de/record/201083},
}