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Efficient La–Ba–MgO Supported Ru Catalysts for Ammonia Synthesis

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Abstract

Novel Ru-based catalysts were prepared by impregnating 2 wt% Ru3(CO)12 into rare earth (La, Sm, Ce) and barium doped nano-magnesia (RE–Ba–MgO) supports, which were originally prepared by chemical co-precipitation with ultrasonic treatment. The Ru/RE–Ba–MgO catalyst exhibits higher activity, more than three times of that of conventional Ba–Ru/MgO base on water impregnation. Characterization of this catalyst by various techniques reveals that the chemical and textural properties of nano Ba–MgO supports and formation state of barium in support are key factors responsible for the elevated activity of this catalyst.

Graphical Abstract

Novel Ru-based catalysts (Ru/RE–Ba–MgO) were prepared in this paper, the novel catalyst exhibits higher activity, more than three times of that of conventional Ba–Ru/MgO. The chemical and textural properties of supports and formation state of barium in support are key factors responsible for the elevated activity of this catalyst.

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Acknowledgments

The financial supports from National Natural Science Foundation of China (Project 20203016) and Zhejiang Natural Science Foundation (Y406294) were gratefully acknowledged.

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Authors and Affiliations

  1. College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou, 310014, People’s Republic of China

    Chao Huo, Qing-Hua Xia, Mei-Hua Pan & Hua-Zhang Liu

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  1. Chao Huo
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  2. Qing-Hua Xia
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  3. Mei-Hua Pan
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  4. Hua-Zhang Liu
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Correspondence to Chao Huo.

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Huo, C., Xia, QH., Pan, MH. et al. Efficient La–Ba–MgO Supported Ru Catalysts for Ammonia Synthesis. Catal Lett 141, 1275–1281 (2011). https://doi.org/10.1007/s10562-011-0655-6

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  • DOI: https://doi.org/10.1007/s10562-011-0655-6

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