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A Facile Method for in Situ Preparation of the MnO2/LaMnO3 Catalyst for the Removal of Toluene
Abstract
MOx/ABO3 is a promising catalyst for the high-efficiency removal of volatile organic compounds. However, this catalyst is limited on practical applications due to its complex synthesis procedure and high cost. In this work, the MnO2/LaMnO3 catalyst was prepared in situ using a facile one-step method for the first time, in which partial La cations were selectively removed from three dimensionally chain-like ordered macroporous (3DOM) LaMnO3 material. After selective removal, the obtained MnO2/LaMnO3 sample expressed an excellent catalytic performance on toluene oxidation. Toluene could be completely oxidized into CO2 and H2O at 290 °C over the MnO2/LaMnO3 catalyst with a toluene/oxygen molar ratio of 1/100 and a space velocity of 120 000 mL/(g h). In addition, the apparent activation energy value of MnO2/LaMnO3 was 57 kJ/mol, which was lower than those of other metal oxides catalysts. According to O2-TPD and XPS results, it is concluded that the high catalytic performance of MnO2/LaMnO3 was mainly associated with the large amount of oxygen species and the excellent lattice oxygen mobility. MnO2/LaMnO3 is a promising catalyst for the practical removal of volatile organic compounds due to its high efficiency, good stability, low cost, and convenient preparation.
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Cited by
Ru/CeO2 Catalyst with Optimized CeO2 Support Morphology and Surface Facets for Propane Combustion
Wang, Z., Huang, Z., Brosnahan, J. T., Zhang, S., Guo, Y., Guo, Y., Wang, L., Wang, Y., & Zhan, W. (2019) · Environmental Science & Technology · doi:10.1021/acs.est.9b01929 · Cited by 377
Self-citationZhao, Q., Zheng, Y., Song, C., Liu, Q., Ji, N., Ma, D., & Lu, X. (2020) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2019.118552 · Cited by 325
A facile method to promote LaMnO3 perovskite catalyst for combustion of methane
Ding, Y., Wang, S., Zhang, L., Chen, Z., Wang, M., & Wang, S. (2017) · Catalysis Communications · doi:10.1016/j.catcom.2017.04.022 · Cited by 83
Metadata
- Authors
- Si, W., Wang, Y., Zhao, S., Hu, F., & Li, J.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-03-31
- Volume
- 50
- Issue
- 8
- Pages
- 4572-4578
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2321294097
- Cited by
- 364
- References
- 0
- FWCI
- 13.24
- Type
- journal article
- Language
- en
- Open access
- closed
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- Si, W., Wang, Y., Zhao, S., Hu, F., & Li, J. (2016). A Facile Method for in Situ Preparation of the MnO2/LaMnO3 Catalyst for the Removal of Toluene. Environmental Science & Technology. https://doi.org/10.1021/acs.est.5b06255
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