Correction to: A density functional + U assessment of oxygen evolution reaction mechanisms on β-NiOOH (ACS Catalysis (2017) 7:8 (5329-5339) DOI: 10.1021/acscatal.7b00999)

The surface area normalization (2A term) was inadvertently neglected in the evaluation of the solvated surface slab energies. The equation appearing in the results section (p. 5333): ^Einterface = ^Esolvation - ^Evacuum + ^Esurface in which ^Esurface is the area-normalized surface energy in J/m², while (^Esolvation - ^Evacuum) was mistakenly evaluated as the solvation energy in eV. Therefore, the equation should be corrected as E = 1/2 (^Einterface ^Esolvation vacuum) surface where (^Esolvation - ^Evacuum) is in J and 2A is in m². This error consequently renders the data in Table 1 concerning surface energies in water (column 3) incorrect.