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. 2022 Mar 29;10(14):4683–4693. doi: 10.1021/acssuschemeng.2c00195

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© 2022 The Authors. Published by American Chemical Society

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Trade-off between flooding resistance and CO₂ mass transfer: FE_CO at −200 mA cm^–2 (flow-by mode) against the flow-by pressure window, Δp*, recorded at open circuit potential (OCP). The shape and color of the markers indicate the CFS structure of each GDE. (a) Detailed view of materials with MPL cracks. (b) Comparison of materials with and without MPL cracks (H23C6). The H23C6 marker represents a hypothetical value for FE_CO because this GDE type experienced a complete flooding of the gas channel at −200 mA cm^–2.