Abstract:
The diffusion of binary aqueous electrolytes through nanopores with dielectric as well as conductive surface is investigated theoretically on the basis of Space–Charge model. The latter is extended to the case of polarizable nanopore wall. It is shown that the diffusion of ions with different mobilities generates the electric field, which induces non–uniform surface charge in a polarizable nanopore. It results in charge separation inside the pore and leads to a dramatic enhancement of membrane potential in comparison with a non-polarizable nanopore. The calculations are performed for three aqueous electrolytes based on KCl, NaCl, and LiOH. The influence of electrolyte type and concentration difference applied across the pore on the ion transport and membrane potential is discussed and analyzed.
This work is supported the Russian Science Foundation, Project 15–19–10017.
Received: 07.11.2017 Received in revised form: 06.12.2018 Accepted: 20.06.2018
Bibliographic databases:
Document Type:
Article
UDC:
532.711 + 66.081.6
Language: English
Citation:
Ilya I. Ryzhkov, Anton S. Vyatkin, Andrey V. Minakov, “Theoretical study of electrolyte diffusion through polarizable nanopores”, J. Sib. Fed. Univ. Math. Phys., 11:4 (2018), 494–504
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\paper Theoretical study of electrolyte diffusion through polarizable nanopores
\jour J. Sib. Fed. Univ. Math. Phys.
\yr 2018
\vol 11
\issue 4
\pages 494--504
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\crossref{https://doi.org/10.17516/1997-1397-2018-11-4-494-504}
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https://www.mathnet.ru/eng/jsfu690
https://www.mathnet.ru/eng/jsfu/v11/i4/p494
This publication is cited in the following 7 articles:
Artur I. Krom, Maria I. Medvedeva, Ilya I. Ryzhkov, “Modelling the ionic conductivity of nanopores with electrically conductive surface”, Zhurn. SFU. Ser. Matem. i fiz., 14:1 (2021), 74–86
A. I. Krom, I. I. Ryzhkov, “Ionic conductivity of nanopores with electrically conductive surface: comparison between 1D and 2D models”, Adv. Theory Simul., 4:10 (2021), 2100174
I. I. Ryzhkov, M. A. Shchurkina, E. V. Mikhlina, M. M. Simunin, I. V. Nemtsev, “Switchable ionic selectivity of membranes with electrically conductive surface: theory and experiment”, Electrochim. Acta, 375 (2021), 137970
D. Lebedev, M. Novomlinsky, V. Kochemirovsky, I. Ryzhkov, I. Anfimova, M. Panov, T. Antropova, “Glass/au composite membranes with gold nanoparticles synthesized inside pores for selective ion transport”, Materials, 13:7 (2020), 1767
A. G. Knyazeva, “Diffusion model of drug nanopore filling”, Nanosci. Technol., 11:4 (2020), 327–341
I. I. Ryzhkov, A. S. Vyatkin, E. V. Mikhlina, “Modelling of conductive nanoporous membranes with switchable ionic selectivity”, Membr. Membr. Technol., 2:1 (2020), 10–19
Ilya I. Ryzhkov, Anton S. Vyatkin, Maria I. Medvedeva, “Modelling of electrochemically switchable ion transport in nanoporous membranes with conductive surface”, Zhurn. SFU. Ser. Matem. i fiz., 12:5 (2019), 579–589
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