Characterization of Silica-Supported Cobalt Catalysts Prepared by Decomposition of Nitrates Using Dielectric-Barrier Discharge Plasma |
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Authors: | Chengdu Huang Suli Bai Jing Lv and Zhenhua Li |
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Affiliation: | (1) Key Lab for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; |
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Abstract: | Abstract Low temperature decomposition of precursors usually leads to higher cobalt dispersion. In this study, we present a method
to decompose cobalt precursors by using dielectric-barrier discharge (DBD) plasma without requiring a thermal calcination
process. Cobalt (Co) catalysts prepared by DBD plasma were characterized by a range of techniques. The results indicate that
the DBD decomposition method can not only reduce the decomposition time but also achieve an increased Co dispersion, small
Co3O4 cluster size and uniform distribution compared to traditional calcination method. It was observed that the DBD-treated catalysts
performed well in Fischer–Tropsch synthesis and were favorable for heavy hydrocarbon formation. |
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