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Solid oxide fuel cells

Cool proton conductors

Nature Energy volume 7, pages 1124–1125 (2022)Cite this article

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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.

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

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, USA

    Ravindra Singh Bisht & Shriram Ramanathan

  2. School of Materials Engineering, Purdue University, West Lafayette, IN, USA

    Shriram Ramanathan

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  1. Ravindra Singh Bisht
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  2. Shriram Ramanathan
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Correspondence to Shriram Ramanathan.

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The authors declare no competing interests.

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

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