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Issue 44, 2018
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Insights into catalytic roles of noble-metal-free catalysts CoxSy for reduction of 4-nitrophenol

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Abstract

To develop noble-metal-free catalysts, three CoxSy samples, i.e. Co9S8, CoS and CoS2, have been prepared and investigated for the reduction of 4-nitrophenol. Co9S8 has the best surface electron immigration efficiency and the highest H2-adsorption capability, which make it the most promising catalyst. On the other hand, CoS has higher electron transfer efficiency than CoS2, leading to stronger H absorption capability. As a result, the catalytic activity of the three catalysts shows the following trend: Co9S8 > CoS > CoS2 under the same reaction conditions. Finally, a plausible catalytic mechanism has also been proposed, which is helpful in acquiring an in-depth insight into the catalytic role of CoxSy.

Graphical abstract: Insights into catalytic roles of noble-metal-free catalysts CoxSy for reduction of 4-nitrophenol

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Publication details

The article was received on 21 Aug 2018, accepted on 19 Oct 2018 and first published on 19 Oct 2018


Article type: Communication
DOI: 10.1039/C8CP05309J
Citation: Phys. Chem. Chem. Phys., 2018,20, 27730-27734
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    Insights into catalytic roles of noble-metal-free catalysts CoxSy for reduction of 4-nitrophenol

    R. Zhou, X. Yang, P. Zhang, L. Yang, C. Liu, D. Liu and J. Gui, Phys. Chem. Chem. Phys., 2018, 20, 27730
    DOI: 10.1039/C8CP05309J

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