Theory of Water Desalination with Intercalation Materials

@article{Singh2018TheoryOW,
  title={Theory of Water Desalination with Intercalation Materials},
  author={K. Singh and Henricus Bouwmeester and Louis C. P. M. de Smet and Martin Z. Bazant and P. Maarten Biesheuvel},
  journal={Physical Review Applied},
  year={2018}
}
We present a porous electrode theory for capacitive deionization with electrodes containing nanoparticles that consist of a redox-active intercalation material. A geometry of a desalination cell is considered which consists of two porous electrodes, two flow channels, and an anion-exchange membrane, and we use the Nernst-Planck theory to describe ion transport in the aqueous phase in all these layers. A single-salt solution is considered, with unequal diffusion coefficients for anions and… 

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References

SHOWING 1-10 OF 42 REFERENCES

Nonlinear dynamics of capacitive charging and desalination by porous electrodes.

A unified mean-field theory for capacitive charging and desalination by ideally polarizable porous electrodes (without Faradaic reactions or specific adsorption of ions) valid in the limit of thin double layers is presented.

A hydrodynamic theory of desalination by electrodialysis

Water desalination via capacitive deionization : What is it and what can we expect from it?

Capacitive deionization (CDI) is an emerging technology for the facile removal of charged ionic species from aqueous solutions, and is currently being widely explored for water desalination

Electrochemistry and capacitive charging of porous electrodes in asymmetric multicomponent electrolytes

We present porous electrode theory for the general situation of electrolytes containing mixtures of mobile ions of arbitrary valencies and diffusion coefficients (mobilities). We focus on electrodes