Abstract
Due to the special crystal structures and electron configurations, high-entropy alloys (HEAs) are expected to have favorable activities for electrocatalytic reactions. In this paper, a set of oxygen evolution reaction (OER) criteria are applied for the HEA-based electrocatalyst design. Specifically, FeNiMnCrCu HEA is predicted to have a better OER performance than the baseline FeCoNiCrAI HEA. To demonstrate this design approach, both FeNiMnCrCu and FeCoNiCrAI samples are prepared and tested. Their crystal structures and electrocatalytic performance are examined. This paper demonstrates the potential of using finely tuned HEAs for OER applications.
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This publication is based upon the work supported by NSF-Consortium for innovation in manufacturing and materials (CIMM) program (grant number # OIA-1541079).
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Cui, X., Zhang, B., Zeng, C. et al. Electrocatalytic activity of high-entropy alloys toward oxygen evolution reaction. MRS Communications 8, 1230–1235 (2018). https://doi.org/10.1557/mrc.2018.111
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DOI: https://doi.org/10.1557/mrc.2018.111