Fig. 22. (a) LSV curves for OER on bulk NiMn-LDH and ultrathin NiMn-LDH nanosheets. (b) The corresponding Tafel plots. (c) Cycles stability of the exfoliated NiMn-LDH nanosheets. (d) DFT calculated free energy diagrams for the OER process from H2O to O2 on the NiMn-LDH structures. The optimized configurations of the adsorption intermediates of *OH, *O and *OOH are shown inside. Dark blue: Mn; green: Ni; red: O; white: H. Reproduced with permission from ref. 95. Copyright 2018 John Wiley & Sons, Inc.
