Atomically Dispersed Pt-Ru Dual-Atom Catalysts for Efficient Low-Temperature CO Oxidation Reaction

We successfully fabricated an atomically dispersed dual-atom catalyst featuring Pt 1 -Ru 1 sites anchored on defective graphene (Pt 1 Ru 1 /ND@G). Pt 1 Ru 1 /ND@G achieves a high turnover frequency of 17.6 × 10 −2 s −1 for CO oxidation at 30 °C, which is 10 times higher than Pt 1 /ND@G and demonstrates outstanding performance compared with the previous reports. Pt-Ru bond enhances the metallicity of both Pt and Ru atoms, facilitating the simultaneous adsorption and activation of CO and O 2 and overcoming the limitations of single-atom catalysts.