The adsorption and activation of a CO<sub>2</sub>molecule on cubic δ-MoC(001) and orthorhombic β-Mo<sub>2</sub>C(001) surfaces have been investigated by means of periodic density functional theory based calculations using the Perdew–Burke–Ernzerhof exchange–correlation functional and explicitly accounting for (or neglecting) the dispersive force term description as proposed by Grimme.

The bending machine: CO2activation and hydrogenation on δ-MoC(001) and β-Mo2C(001) surfaces