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Dynamics of Single Pt Atoms on Alumina during CO Oxidation Monitored by Operando Xray and Infrared Spectroscopies
Single-atom catalysts (SACs) are promising atom-efficient materials, with potentially superior performances with respect to their nanoparticulate counterparts. Owing to its practical importance and relative simplicity, CO oxidation on Pt/-Al2O3 is considered as an archetypal catalytic system. The efficiency of the corresponding SAC has recently been the subject of debate. In this work, in addition to systematic high-resolution scanning transmission electron microscopy, we have simultaneouslydoi:10.1021/acscatal.9b00903.s001 fatcat:tauuz3ab7bbz5hq4mzamejfbs4