Hierarchically structured Co3O4/SiO2 composites by Co nanocrystals transformation

[Display omitted] •Mesoporous Co3O4/SiO2 composite is obtained by in-situ transformation of cobalt.•The mesoporous structure is well-maintained after thermal treating process.•The composite shows superior adsorption ability for organic molecules. Hierarchical structured mesoporous Co3O4/SiO2 composi...

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Bibliographic Details
Published in:Chemical physics letters 2020-02, Vol.740, p.137068, Article 137068
Main Authors: Wu, Si-Ming, Wang, Yi-Tian, Jiang, Nan, Xiao, Shi-Tian, Shi, Jia-Xin, Wan, Ying, Luo, Zhi-Qiang, Yang, Xiao-Yu
Format: Article
Language:English
Subjects:
Adsorption
Co3O4
Mesoporous structure
Transition metal oxides
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Summary:[Display omitted] •Mesoporous Co3O4/SiO2 composite is obtained by in-situ transformation of cobalt.•The mesoporous structure is well-maintained after thermal treating process.•The composite shows superior adsorption ability for organic molecules. Hierarchical structured mesoporous Co3O4/SiO2 composites have been fabricated by the in-situ transformation of cobalt nanocrystals in the mesoporous silica. The hierarchical porous composites show good structural stability during the thermal treating process and demonstrate high crystallinity after phase transformation. The highly crystalline Co3O4/SiO2 composite has uniform mesopores and exhibits good adsorption ability. This method offers a promising way to the design of hierarchical structured mesoporous materials with highly crystalline framework.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2019.137068