First-principle study of SO2 molecule adsorption on Ni-doped vacancy-defected single-walled (8,0) carbon nanotubes

These two figures reflect the orbital bonding between SO2 molecule and the SV-2-CNT and Ni-SV-2-CNT. Which indicated the feasibility of making the sensors for SO2 molecule detecting with introducing vacancies, Ni atoms or combination of them.