Developing sulfur-tolerant catalysts for industrial application is crucial but yet challenging. Herein, carbon shells are introduced to Pt/CeO2 to inhibit the deactivation caused by SO2 for CO oxidation. The chemical properties and catalytic activity indicate that Pt/CeO2@C effectively sustains the valence state of Pt species and exhibits T100 of 180 °C for CO oxidation in the presence of SO2 and H2O. This approach provides a new perspective for enhancing the SO2 tolerance of catalysts for exhaust treatment.
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Zhou et al. (2024) studied this question.
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