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- W4221121805 endingPage "107629" @default.
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- W4221121805 abstract "A series of Cr-Pt/ZSM-5 catalysts (0.5 wt% Pt) with various doping amounts of Cr species were prepared to investigate the synergy effect of MO x and ZSM-5 zeolites with micro-mesoporous structure on the oxidation performance of CVOCs low-temperature removal. The results indicate that the strong interaction between Pt and Cr species can be promoted by the doping of appropriate amount of Cr species, which is beneficial for the formation of more Cr 6+ species and acid sites (especially for the strong acid sites). The synergistic effect of strong oxidizing sites (Cr 6+ /Pt species) and abundant acid sites (ZSM-5) is in favor of the dechlorination of DCE as well as the deep oxidation of intermediate products and by-products. Among these catalysts, the 10%Cr-Pt/ZSM-5 catalyst possesses the greatest oxidation activity for 1,2-dichloroethane (DCE) degradation with the T 90% value as low as 255 °C, and also possesses excellent durability and catalytic activity for other non-chlorinated VOCs degradation. However, the structure of ZSM-5 zeolites is partly destroyed by the introduction of excess Cr species and the serious agglomeration of Cr species also occurs, which would weaken the interaction between Cr/Pt species and ZSM-5, resulting in a significant decline in its Cr 6+ species and strong acid sites. • Cr-Pt/ZSM-5 catalysts for low-temperature removal of CVOCs were synthesized. • Strong Pt/Cr-ZSM-5 interaction enhances the amount of Cr 6+ species and acid sites. • The synergy effect between ZSM-5 and Cr 6+ /Pt obviously promotes the removal of DCE. • The formation of byproducts can be effectively inhabited by Cr 6+ species." @default.
- W4221121805 created "2022-04-03" @default.
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- W4221121805 date "2022-06-01" @default.
- W4221121805 modified "2023-09-30" @default.
- W4221121805 title "Synergistic effect in bimetal Cr-Pt/ZSM-5 catalysts with high activity for CVOCs low-temperature removal" @default.
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- W4221121805 doi "https://doi.org/10.1016/j.jece.2022.107629" @default.
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