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Novel monolithic catalysts derived from in-situ decoration of Co3O4 and hierarchical Co3O4@MnOx on Ni foam for VOC oxidation

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Zhao, Qian, Zheng, Yanfei, Song, Chunfeng, Liu, Qingling, Ji, Na, Ma, Degang, Lu, Xuebin·2020·Applied Catalysis B: Environmental

Abstract

Abstract Monolithic Co3O4 and Co3O4@MnOx catalysts have been successfully prepared by in-situ growth. The morphology control and formation mechanism of Co3O4 on Ni foam was investigated in detail. Among the different samples, bamboo leaf-like Co3O4-NF-10 presented good catalytic activity for acetone oxidation (T50 = 179 °C, T90 = 193 °C), which was attributed to its low temperature reducibility, abundant Co3+ and surface adsorbed oxygen species (Oads). Therefore, Co3O4@MnOx-NF was further prepared to obtain abundant Co3+ and Oads species due to the redox reaction between MnO4− and Co2+. As expected, the Co3O4@MnOx-NF catalyst presented significantly improved activity for not only acetone but ethyl acetate and toluene oxidation compared to the Co3O4-NF-10. The high catalytic performance of Co3O4@MnOx-NF was ascribed to its good low-temperature reducibility, abundant Co3+ and Oads species. In addition, Co3O4@MnOx-NF presented a satisfactory cycle and long-term stability. This work shed light on the design of monolithic catalysts in VOC oxidation.

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Metadata

Authors
Zhao, Q., Zheng, Y., Song, C., Liu, Q., Ji, N., Ma, D., & Lu, X.
Venue
Applied Catalysis B: Environmental
Publisher
Elsevier BV
Published
2020-05
Volume
265
Pages
118552
ISSN
0926-3373 (ISSN-L)
OpenAlex
W2996172383
Cited by
325
References
32
FWCI
9.90
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Novel monolithic catalysts derived from in-situ decoration of Co3O4 and hierarchical Co3O4@MnOx on Ni foam for VOC oxidation. https://app.cochat.ai/papers/10.1016/j.apcatb.2019.118552
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Zhao, Q., Zheng, Y., Song, C., Liu, Q., Ji, N., Ma, D., & Lu, X. (2020). Novel monolithic catalysts derived from in-situ decoration of Co3O4 and hierarchical Co3O4@MnOx on Ni foam for VOC oxidation. Applied Catalysis B: Environmental. https://doi.org/10.1016/j.apcatb.2019.118552

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