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Facet-resolved mechanistic insights into OER-selective seawater electrolysis on Co3O4
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DOI：10.1016/j.apcatb.2025.125974.png)
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Abstract
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• Morphology-controlled Co3O4 dictates OER–CER selectivity in seawater electrolysis. • Cubic Co3O4 achieves > 92 % OER Faradaic efficiency with minimal CER contribution. • Truncated Co3O4 exhibits facet-driven CER enhancement through oxygen migration. • Kinetic and DFT analysis reveal morphology-sensitive CER vs invariant OER. • Findings provide a mechanistic basis for designing OER-selective seawater catalysts.
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