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Promotion effect of the oxygen-containing functional groups and Fe species on the Pd@graphene for CO catalytic oxidation

Abstract

In this paper, Pd/reduced graphene oxide (Pd/RGO) catalyst was successfully synthesized by chemical reduction method with hydrazine hydrate as a reducing agent. By controlling the amount of reducing agent, the Pd/RGO catalysts had the different surface Pd loading and graphene interlayer spacing. The Pd/Fe@RGO catalyst was prepared by Pd supported on Fe @ RGO composite which was synthesized by hydrothermal method. In the Pd/Fe@RGO catalyst, Pd0 species and Fe3+ species was the mainly active component. The addition of Fe species increased the interlayer spacing of the graphene, the surface loading of Pd and the content of the surface active oxygen. Thus, the Pd/Fe@RGO catalyst showed the highest catalytic activity for CO oxidation, and the T100 value was 90 °C and the apparent activation energy was 86.37 kJ mol-1. The stability of the superior catalyst at 50% conversion was 510 min, and the stability under moisture of the catalyst was only 300 min.

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Publication details

The article was received on 24 May 2017, accepted on 04 Sep 2017 and first published on 05 Sep 2017


Article type: Paper
DOI: 10.1039/C7NJ01807J
Citation: New J. Chem., 2017, Accepted Manuscript
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    Promotion effect of the oxygen-containing functional groups and Fe species on the Pd@graphene for CO catalytic oxidation

    Z. Tang, Y. Zhao, F. Dong, W. Han and H. Zhao, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ01807J

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