Comparison of the binding
energy of different interlayer anion
Ni3Al-A-LDH (A = Cl–, Br–, I–, OH–, NO3–, CO32–, SO42–, HCOO–, C6H5SO3–, C12H25SO3–) model systems; (A) interlayer
spacing vs binding energy; (B) anion size along the c-axis vs binding energy.