Interlayer ligand engineering of β-Ni(OH)2 for oxygen evolution reaction

(Science China Press) Alkoxyl substitution strategy is proposed to enlarge the interlayer distances and tune the interface environments of β-Ni(OH)2. Operando X-ray absorption spectroscopy studies combined with ex-situ analyses revealed that the critical active species of NiEt is formed via hydroxylation and subsequent de-protonation, with high valent Niδ+(3