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Effect of Graphitic Carbon Nitride on the Electronic and Catalytic Properties of Ru Nanoparticles for Ammonia Synthesis

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Abstract

Graphitic carbon nitrides were employed to prepare the Ruthenium-based ammonia synthesis catalysts by thermal decomposition of Ru3(CO)12 under N2 or H2 atmosphere. Different pretreatment atmospheres significantly affected the interaction between Ru nanoparticles and the graphitic carbon nitride. The strong metal support interaction enhanced the electronic density transfer from rich-electron π-plane of the support to the Ru nanoparticles. And it further caused the upshift of d-band center of Ru nanoparticles. The upshift of d-band center improved the ability of surface to bond to N2, and consequently the ammonia synthesis activity was enhanced.

Graphical Abstract

Electron-rich and graphitic carbon nitride enhanced the electron density of Ru nanoparticles. And that caused the upshift of d-band center of Ru nanoparticles. This upshift of d-band center improved the ability of surface to bond to N2, and consequently the ammonia synthesis activity was enhanced.

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Acknowledgments

This research was financially supported by National Natural Science Foundation of China (Grant No. 21403257).

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Authors and Affiliations

  1. State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China

    Zhanwei Ma, Shengli Zhao, Xumao Xiong, Bin Hu & Chengli Song

  2. University of Chinese Academy of Sciences, Beijing, 100049, China

    Zhanwei Ma & Shengli Zhao

Authors
  1. Zhanwei Ma
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  2. Shengli Zhao
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  3. Xumao Xiong
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  4. Bin Hu
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  5. Chengli Song
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Correspondence to Bin Hu or Chengli Song.

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Ma, Z., Zhao, S., Xiong, X. et al. Effect of Graphitic Carbon Nitride on the Electronic and Catalytic Properties of Ru Nanoparticles for Ammonia Synthesis. Catal Lett 146, 2324–2329 (2016). https://doi.org/10.1007/s10562-016-1862-y

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  • DOI: https://doi.org/10.1007/s10562-016-1862-y

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