TY - JOUR
T1 - Effects of anion size and concentration on electrolyte invasion into molecular-sized nanopores
AU - LIU, L.
AU - CHEN, X.
AU - KIM, T.
AU - HAN, A.
AU - QIAO, Y.
PY - 2010
Y1 - 2010
N2 - When an electrolyte solution is pressurized into a molecular-sized nanopore, oppositely charged ions are strongly inclined to aggregate, which effectively reduces the ion solubility to zero. Inside the restrictive confinement, a unique quasi-periodic structure is formed where the paired ion couples are periodically separated by a number of water molecules. As the anion size or ion concentration varies, the geometrical characteristics of the confined ion structure would change considerably, leading to a significant variation in the transport pressure. Both experimental and simulation results indicate that, contradictory to the prediction of conventional theory, infiltration pressure decreases as the anions become larger. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
AB - When an electrolyte solution is pressurized into a molecular-sized nanopore, oppositely charged ions are strongly inclined to aggregate, which effectively reduces the ion solubility to zero. Inside the restrictive confinement, a unique quasi-periodic structure is formed where the paired ion couples are periodically separated by a number of water molecules. As the anion size or ion concentration varies, the geometrical characteristics of the confined ion structure would change considerably, leading to a significant variation in the transport pressure. Both experimental and simulation results indicate that, contradictory to the prediction of conventional theory, infiltration pressure decreases as the anions become larger. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
UR - http://www.scopus.com/inward/record.url?scp=77951180533&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/12/3/033021
DO - 10.1088/1367-2630/12/3/033021
M3 - Journal Article (refereed)
SN - 1367-2630
VL - 12
JO - New Journal of Physics
JF - New Journal of Physics
M1 - 33021
ER -