Abstract
In this work, N-doped Co3O4 catalyst was prepared using a facile g-C3N4-modified thermal decomposition method and tested for catalytic decomposition of N2O. Due to the addition of N, the crystallite size of Co3O4 in the N-Co3O4 catalyst decreased, and was much smaller than the bare Co3O4 catalyst. Furthermore, the addition of N endowed the N-Co3O4 catalyst with a large specific surface area, excellent redox ability, abundant oxygen vacancies, basic sites, and surface Co2+. As a result, the N-Co3O4 catalyst exhibited higher activity for catalytic decomposition of N2O, and the temperature for the complete catalytic elimination of N2O was as low as 380 °C. Meanwhile, compared with bare Co3O4, Ea decreased from 104.6 to 75.2 kJ·mol−1. Moreover, N-Co3O4 displayed a quite stable catalytic activity and stability with or without 200 ppmv NO, 3 vol % O2, and 3.3 vol % H2O. Overall, this design delivers a simple and practical strategy to obtain N-Co3O4 catalyst with high-performance for catalytic decomposition of N2O.
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Acknowledgements
Authors gratefully acknowledge the National Natural Science Foundation of China (21673132), Fundamental Research Program of Shanxi Province (202303021212298), Scientific and Technological Innovation Programs of Higher Education Institutions in Shanxi (2021L458), and Xinzhou Normal University PhD startup fund (00001027).
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Hu, X., Meng, J., Feng, L. et al. Facile Synthesis of N-doped Co3O4 Catalyst for Catalytic Decomposition of N2O under Simulated Real Tail Gases. Catal Lett (2024). https://doi.org/10.1007/s10562-024-04669-z
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DOI: https://doi.org/10.1007/s10562-024-04669-z