In situ growth of minimal Ir-incorporated CoxNi1-xO nanowire arrays on Ni foam with improved electrocatalytic activity for overall water splitting

In situ evolution of surface Co2CrO4 to CoOOH/CrOOH by electrochemical method: Toward boosting electrocatalytic water oxidation

“…Water splitting powered by electricity is considered a promising process for generating hydrogen to alleviate public concerns about the escalating energy depletion and environmental pollution [1][2][3][4][5][6]. The oxidative process of water splitting, that is, the oxygen evolution reaction (OER), is a multielectron transfer process and a bottleneck in hydrogen generation.…”

Dissolution-regrowth of hierarchical Fe-Dy oxide modulates the electronic structure of nickel-organic frameworks as highly active and stable water splitting electrocatalysts

“…In general, the higher the double-layer capaci- tance (Cdl), the smaller the overpotential will be at a given current density. The EASA is proportional to the Cdl, which can be acquired from CV curves obtained at different scan rates in a non-faradaic potential region [57,58]. As shown in Fig.…”

Dual-strategy of hetero-engineering and cation doping to boost energy-saving hydrogen production via hydrazine-assisted seawater electrolysis

“…Nonetheless, the inevitable oxygen evolution reaction (OER) and competitive chlorine evolution reaction (ClER) on the anode limit the performance of seawater splitting. On the one hand, OER's intrinsically slow kinetics necessitate a high overpotential (1.23 V vs. reversible hydrogen electrode (RHE)) to complete a complex four-electron process [8][9][10]. On the other hand, for seawater splitting in alkaline media, chloride anions react with OH − at the anode to form hypochlorite, triggering the anodic chlorine evolution reaction, thus resulting in electrode corrosion and environmental pollution, which reduces electrolysis efficiency and sustainability [11,12].…”