Spin-polarized p-block antimony/bismuth single-atom catalysts on defect-free rutile TiO2(110) substrate for highly efficient CO oxidation

We establish a new strategy for constructing spin-polarized single Bi/Sb atoms on defect-free TiO 2 (110), showing excellent catalytic activities for spin-triplet O 2 activation and CO oxidation with low rate-limiting reaction barrier of ∼0.6 eV.