Various reactors reported in literature for H2O2 production: (a) Venturi-based jet aerator ones (Adapted with permission (Pérez et al., 2016), Copyright 2016, Elsevier), (b) reactor equipped with rotating cathodes (Adapted with permission (Yu et al., 2014), Copyright 2014, American Chemical Society), (c) stacked electrosynthesis reactor (Adapted with permission (Lu et al., 2017), Copyright 2017, Elsevier).