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- W4385614693 abstract "As a promising technology, ozone catalytic oxidation can effectively eliminate VOCs at low temperature. However, the excessive ozone consumption brings serious economic problems for industrial applications. Herein, Cu-Mn mixed oxides were supported on the dealumination Y zeolite, and the electronic metal-support interaction between the support and metal nanoparticles was enhanced through P-doping. Satisfyingly, the optimized catalyst P2-CuMn/DY achieved over 90% conversion of toluene even at a very harsh catalytic condition (30 °C, GHSV=240000 h-1). Moreover, this high toluene conversion accompanying with lower ozone consumption. Compared to CuMn/DY, the ozone/toluene consumption ratio in P2-CuMn/DY decreased from ~ 10:1 to ~ 8.7:1. With the help of multiple various characterizations and DFT calculations, it can be found that the existence of pyrophosphate led more charge to accumulate on the surrounding metal oxides, improving the activity of oxygen vacancies. The change in the properties of oxygen vacancies enhanced the accumulation of O* species on the catalyst, improving the utilization of ozone in the catalytic reaction. This work provides a more economical strategy and guidance to design highly effective catalysts for industrial-scale VOCs eliminations." @default.
- W4385614693 created "2023-08-07" @default.
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- W4385614693 date "2023-12-01" @default.
- W4385614693 modified "2023-09-26" @default.
- W4385614693 title "Tuning the properties of oxygen vacancy around Cu-Mn mixed oxides on dealumination Y zeolite by P-doping to achieve ultra-efficient catalytic ozonation of toluene with low ozone consumption" @default.
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- W4385614693 doi "https://doi.org/10.1016/j.apcatb.2023.123154" @default.
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