Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.


Confined water controls capacitance

By using a battery of experimental and theoretical methods, it is shown that ion intercalation into the electrode material birnessite is mediated by structural water.

This is a preview of subscription content

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Fig. 1: How electrochemical processes are affected by ion intercalation.


  1. 1.

    Boyd, S. et al. Nat. Mater. (2021).

  2. 2.

    Ghodbane, O., Ataherian, F., Wu, N.-L. & Favier, F. J. Power Sources 206, 454–462 (2012).

    CAS  Article  Google Scholar 

  3. 3.

    Conway, B. Electrochemical Supercapacitors: Scientific Fundamentals and Technological Applications (Kluwer Academic, 1999).

  4. 4.

    Simon, P. & Gogotsi, Y. Nat. Mater. 7, 845–854 (2008).

    CAS  Article  Google Scholar 

  5. 5.

    Fleischmann, S. et al. Chem. Rev. 120, 6738–6782 (2020).

    CAS  Article  Google Scholar 

  6. 6.

    VahidMohammadi, A., Rosen, J. & Gogotsi, Y. Science 372, eabf1581 (2021).

    CAS  Article  Google Scholar 

  7. 7.

    Wang, X. et al. ACS Nano 15, 15274–15284 (2021).

    CAS  Article  Google Scholar 

Download references

Author information



Corresponding authors

Correspondence to Patrice Simon or Yury Gogotsi.

Ethics declarations

Competing interests

The authors declare no competing interests.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Simon, P., Gogotsi, Y. Confined water controls capacitance. Nat. Mater. 20, 1597–1598 (2021).

Download citation


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing