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. 2021 Aug 17;12:4679. doi: 10.1038/s41467-021-25048-x

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 5 — a Chronoamperometric stability test for EG oxidation at 1.7 V vs RHE for 13 cycles and 1.5 V vs RHE for 11 cycles. The electrolyte was refreshed every 3 h. b–d TEM images and corresponding SAED patterns of CoNi_0.25P after HER (b), OER (c), and EG oxidation (d) reaction for 1 h. e Raman spectra, f Co K-edge XANES profiles, g Co K-edge EXAFS spectra, and h Wavelet transforms for Co K-edge EXAFS spectra for virgin and spent CoNi_0.25P. i Schematic illustration of the structural evolution of CoNi_0.25P catalyst under reaction conditions.