Fabrication of a hierarchical NiTe@NiFe-LDH core-shell array for high-efficiency alkaline seawater oxidation

Insights on MOF-derived metal–carbon nanostructures for oxygen evolution

“…4 However, the effectiveness of water splitting is significantly hampered by the oxygen evolution reaction (OER), primarily due to its multi-step four-electron transfer pathway characterized by sluggish reaction kinetics. 5,6 Although numerous effort has been devoted into developing OER catalysts, 7–11 there is a critical need for superior and stable OER catalysts.…”

Spin configuration modulation of Co3O4 by Ru doping for boosting the overall water splitting and hydrazine oxidation reactions

“…Among the hydrogen production technologies reported, electrocatalytic water splitting powered by the renewable electricity from intermittent energy (such as wind and solar energy) is regarded as an appealing route with the merits of zero-carbon emission and high-purity products, which consists of the cathodic hydrogen evolution reaction (HER) and the anodic oxygen evolution reaction (OER). 4–9 However, the intrinsic sluggish kinetics and large kinetic barrier of the OER as a major bottleneck seriously impede the efficiency of overall water splitting (OWS), owing to the complex four electron-transfer steps. At present, Pt-based materials and Ru/Ir-based oxides are acknowledged as state-of-the-art HER and OER electrocatalysts, respectively.…”

Electrocatalytic Activity of the Brewer Intermetallic Phases Mo6Co7, W6Co7, and W6Fe7 for Hydrogen and Oxygen Evolution Reactions

“…In the past few decades, Ni-, Co-, Fe-, Mo-, and W-based alloys, oxides, carbides, phosphides, and sulfides have been widely studied as electrocatalysts for HER, − and Co and Fe have been recognized as electrocatalytic active sites for OER. − For example, Fe can facilitate surface reconstruction to in situ generate nickel–iron oxyhydroxide on self-supported FeNi alloy fiber paper and Fe atoms can induce the longer Ni–O bonds within oxyhydroxides, which improves the OER activity . Zou et al reported the integrated Co 7 Fe 3 alloy and metallic Co heterojunction (Co 7 Fe 3 /Co) embedding in a 3D honeycomb-like graphitic carbon, in which the electronic structure of alloy-based electrocatalyst was optimized by coupling metallic Co with Co 7 Fe 3 alloy .…”