Enhancing Benzylamine Electro-Oxidation and Hydrogen Evolution Through in-situ Electrochemical Activation of CoCO Nanoarrays.

The sluggish anodic oxygen evolution reaction (OER) seriously restricts the overall efficiency of water splitting. Here, we present an environmentally friendly and efficient aniline oxidation (BOR) to replace the sluggish OER, accomplishing the co-production of H and high value-added benzonitrile (BN) at low voltages. Cobalt oxalates grown on cobalt foam (CoCO ⋅ 2HO/CF) are adopted as the pre-catalysts, which further evolve into working electrocatalysts active for BOR and HER via appropriate electrochemical activation.

Single-layer CoFe hydroxides for efficient electrocatalytic oxygen evolution.

Single-layer CoFe layered double hydroxides (CoFe LDH-S) are successfully fabricated under near-anhydrous conditions due to the weakened hydrogen bonds between monolayers. Benefiting from the single-layer structure with rich defects and disordered lattices, CoFe LDH-S affords superior OER activity compared to its bulky counterparts and most of the recently reported non-precious electrocatalysts.