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Long-range specific ion-ion interactions in hydrogen-bonded liquid films
Journal of Chemical Physics
Anions populate fluid interfaces specifically. Here, we report experiments showing that on hydrogenbonded interfaces anions interact specifically over unexpectedly long distances. The composition of binary electrolyte (Na + , X − /Y − ) films was investigated as a function of solvent, film thickness, and third ion additions in free-standing films produced by blowing up drops with a high-speed gas. These films soon fragment into charged sub-micrometer droplets carrying excess anions detectabledoi:10.1063/1.4803652 pmid:23676063 fatcat:ssdgfgbdjjdenamrm75gpuh2xq