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. 2024 Sep 23;4(10):2573–2584. doi: 10.1021/acsestengg.4c00317

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© 2024 The Authors. Published by American Chemical Society

Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).

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Representative neutron tomograms of porous cylindrical electrodes. A pristine 10 PPI electrode (A, scale bar: 10 mm) was neutron-scanned and three-dimensionally reconstructed (B, scale bar: 10 mm). The neutron attenuation coefficient was represented in a color spectrum scaling from 0 to 1. The reconstructed 3D image enabled internal pore navigation (top image of C, cross-section at the concentric center of B, scale bar: 10 mm) and a local visualization (bottom image of C, zoomed-in image of the red-dotted box of the top image, scale bar: 2 mm). (D, E, and F) Corresponding images of the same electrodes after electrolysis at 1.0 A for 40 min.