Efficient catalytic combustion of toluene at low temperature by tailoring surficial Pt⁰ and interfacial Pt-Al(OH)_x species.

ABSTRACT: Exploring highly efficient and low-cost supported Pt catalysts is attractive for the application of volatile organic compounds (VOCs) combustion. Herein, efficient catalytic combustion of toluene at low temperature over Pt/γ-Al₂O₃ catalysts has been demonstrated by tailoring active Pt species spatially. Pt/γ-Al₂O₃ catalyst with low Pt-content (0.26 wt%) containing both interfacial Pt-Al(OH)_x and surficial metallic Pt (Pt⁰) species exhibited super activity and water-resistant stability for toluene oxidation. The strong metal-support interaction located at the Al-OH-Pt interfaces elongated the Pt-O bond and contributed to the oxidation of toluene. Meanwhile, the OH group at the Al-OH-Pt interfaces had the strongest adsorption

SUBMITTER: Yu K 

PROVIDER: S-EPMC8233202 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature