Abstract
Me/Pt/CeO2/Al2O3 (Me: Mn and Cu) catalysts and Pt/CeO2/Al2O3 catalyst were synthesized by a solution chemical reduction method to reveal the influence of a small amount of transition metals on the CO-SCR reaction. Various of analysis technologies were performed to study the structure and texture, physicochemical property, adsorption ability, redox property and surface state of the catalysts. The results revealed that the BET surface area, CO adsorption ability and redox property of Pt catalyst were enhanced after the addition of transition metals. Moreover, the addition of Cu generated the maximum reduced Pt species, Ce3+ and surface oxygen species. And the synergistic interactions among Cu2+/Cu+, Ce4+/Ce3+ and Pt4+/Pt2+ were conductive to form more oxygen vacancies, which played a key role to promote the CO-SCR performance and resulted in the best CO-SCR activity of Cu modified Pt/CeO2/Al2O3 catalyst at 80–240 °C.
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Acknowledgements
This work was supported by the Bureau of Shaoxing Municipal Human Resources and Social Security, the Science and Technology Program of Shaoxing (2021B41010), the Science and Technology Department of Zhejiang Province (2020C01134, LGG19B070002), National Training Programs of Innovation and Entrepreneurship for Undergraduates (202010349023).
Funding
Funding was provided by the Bureau of Shaoxing Municipal Human Resources and Social Security, the Science and Technology Program of Shaoxing (Grant Number 2021B41010), the Science and Technology Department of Zhejiang Province (Grant Numbers 2020C01134, LGG19B70002), and National Training Programs of Innovation and Entrepreneurship for Undergraduates (Grant Number 202010349023).
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Chen, H., Gao, X., Wang, K. et al. The effect of transition metals (Me: Mn, Cu) on Pt/CeO2/Al2O3 catalysts for the catalytic reduction of NO by CO. Reac Kinet Mech Cat 135, 1553–1571 (2022). https://doi.org/10.1007/s11144-022-02195-w
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DOI: https://doi.org/10.1007/s11144-022-02195-w