Fig. 2. (a) ECSA normalized partial current density of CO evolution as a function of applied potential for mesostructured Ag films with varying roughness factors (RF). Reproduced from ref. 14 with permission from the WILEY-VCH Verlag GmbH & Co. KGaA, Winheim, copyright 2016. (b) ECSA normalized partial current density of CO evolution for nanowire arrays with 200 nm and 30 nm in diameter that are compared to flat polycrystalline Ag foil. Reproduced from ref. 41 with permission from the American Chemical Society, copyright 2018. (c) ECSA normalized partial current density of CO evolution as a function of potential for planar, leaf and wire gold electrodes. Reproduced from ref. 42 (https://pubs.acs.org/doi/abs/10.1021/acscentsci.9b00302) with permission from the American Chemical Society, copyright 2019. Further permissions related to the material excerpted should be directed to the ACS. (d) ECSA normalized partial current density of CO evolution for mesostructured gold electrodes as a function of potentials for three different thickness of the catalyst layer. Reproduced from ref. 13 with permission from the American Chemical Society, copyright 2015.