Skip to main content

Thank you for visiting nature.com. 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.

  • News & Views
  • Published:

Solid oxide fuel cells

Cool proton conductors

Achieving high ionic conductivity at close to room temperature in solid oxide electrolytes is challenging due to the large thermal activation needed for ion transport. Now, a hydrogen-intercalated brownmillerite oxide, SrCoO2.5, has been shown to function as a high-performance proton conducting electrolyte for fuel cells below 200°C.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: Hydrogenated brownmillerite SrCoO2.5 as a low temperature fuel cell electrolyte.

References

  1. Dyer, C. K. J. J. Power Sources 106, 31–34 (2002).

    Article  Google Scholar 

  2. Singhal, S. C. Solid State Ion. 152, 405–410 (2002).

    Article  Google Scholar 

  3. Lu, N. et al. Nat. Energy https://doi.org/10.1038/s41560-022-01166-8 (2022).

  4. Fabbri, E. et al. Solid State Ion. 179, 558–564 (2008).

    Article  Google Scholar 

  5. Zhou, Y. et al. Nature 534, 231–234 (2016).

    Article  Google Scholar 

  6. Muñoz, A. et al. Phys. Rev. B 78, 054404 (2008).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Shriram Ramanathan.

Ethics declarations

Competing interests

The authors declare no competing interests.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Bisht, R.S., Ramanathan, S. Cool proton conductors. Nat Energy 7, 1124–1125 (2022). https://doi.org/10.1038/s41560-022-01165-9

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/s41560-022-01165-9

Search

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