Comparison of Faradic efficiency with (a) size of Au nanoparticle,36 (b) shape of Ag nanoparticles on the electrocatalytic reduction of CO2,37 (c) In2O3–RGO hybrid (blue), In2O3/RGO (olive green), and In2O3/C (red).44 Part (a) reproduced from ref. 37 with permission from American Chemical Society, Copyright 2013. Part (b) reproduced from ref. 38 with permission from American Chemical Society, Copyright 2017. Part (c) reproduced from ref. 45 with permission from American Chemical Society, Copyright 2019.