@article{oai:nagoya.repo.nii.ac.jp:02003771,
 author = {Nagata, Takeshi and Oda, Akira and Yamamoto, Yuta and Ichihashi, Risa and Sawabe, Kyoichi and Satsuma, Atsushi},
 issue = {9},
 journal = {Catalysis Science & Technology},
 month = {May},
 note = {A Pt-based CO oxidation catalyst that works even at low temperatures is desirable for industrial applications; however, its development is highly challenging because of Pt's high affinity toward CO. Here, we develop a Pt^IV single-atom/β-MnO2 composite metal-oxide surface (Pt1^IV/β-MnO2). Single Pt^IV sites were stably formed on the high surface β-MnO2 by strong interaction with Mn^IV defect sites. The resulting Pt^IV–O–Mn^IV local structures served the lattice oxygens as an oxidant to catalyze low-temperature oxidation of CO. Pt1^IV/β-MnO2 was highly resistant to CO poisoning because of the high-valence state of the Pt^IV single-atom sites. Aided by these geometric and electronic features, the CO oxidation was catalyzed with reaction rates of 0.676 and 0.206 molCO/h/gPt at 25 °C and 0 °C, respectively, under the O2-rich conditions (O2 : CO ratio of 66.7). These are record rates in the literature for Pt-based catalyst application for low-temperature CO oxidation under near atmospheric conditions.},
 pages = {2749--2754},
 title = {High Pt-mass activity of Pt^IV1/β-MnO2 surface for low-temperature oxidation of CO under O2-rich conditions},
 volume = {12},
 year = {2022}
}