ABSTRACT
Correction for 'Catalytic exploration of NHC-Ag(I)HMDS complexes for the hydroboration and hydrosilylation of carbonyl compounds' by Claudia P. Giarrusso et al., Dalton Trans., 2023, 52, 7828-7835, https://doi.org/10.1039/D3DT01042B.
ABSTRACT
High intrinsic activity of oxygen evolution reaction (OER) catalysts is often limited by their low electrical conductivity. To address this, we introduce copper inverse opal (IO) frameworks offering a well-developed network of interconnected pores as highly conductive high-surface-area supports for thin catalytic coatings, for example, the extremely active but poorly conducting nickel-iron layered double hydroxides (NiFe LDH). Such composites exhibit significantly higher OER activity in 1 m KOH than NiFe LDH supported on a flat substrate or deposited as inverse opals. The NiFe LDH/Cu IO catalyst enables oxygen evolution rates of 100â mA cm-2 (727±4â A gcatalyst -1 ) at an overpotential of 0.305±0.003â V with a Tafel slope of 0.044±0.002â V dec-1 . This high performance is achieved with 2.2±0.4â µm catalyst layers, suggesting compatibility of the inverse-opal-supported catalysts with membrane electrolyzers, in contrast to similarly performing 103 -fold thicker electrodes based on foams and other substrates.