Phys.org  September 13, 2022 The direct electrolysis of seawater is greatly inhibited by the oxidation of Cl– to free chlorine, an undesirable, corrosive byproduct. To suppress the interference of Cl– and any other ion, researchers in Canada developed a freestanding, electrically conducting, 3D macroporous reduced graphene oxide (rGO) scaffold with cobalt oxide particles selectively deposited on the internal walls of its closed pores. The pore walls act as membranes composed of stacked rGO flakes; the nanochannels between rGO layers are permeable to water and gases while preventing the diffusion of dissolved ions such as Cl–. Due to this, the catalytic […]