“…[12][13][14] Most electrochemical processes use anodes and cathodes made of metals, alloys, metallic nanoparticles, metallic foams, metal-carbon scaffolds, and, more recently, boron-doped diamond (BDD), 15 to oxidize or reduce pollutants in water. 16 These materials can promote C-H bond activation, 17 C-C bond homolytic cleavage, 18 decarboxylation reactions, 19 dehalogenation reac-tions, 20 and other small molecule activation. 21 However, the main issue with metal electrodes is their high cost and their activity towards competitive side reactions such as hydrogen and oxygen evolution (HER and OER, respectively), which drastically limits their efficiency.…”