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Fabricating Pd isolated single atom sites on C3N4/rGO for heterogenization of homogeneous catalysis

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Abstract

Metal isolated single atomic sites catalysts have attracted intensive attention in recent years owing to their maximized atom utilization and unique structure. Despite the success of single atom catalyst synthesis, directly anchoring metal single atoms on three-dimensional (3D) macro support, which is promising to achieve the heterogenization of homogeneous catalysis, remains a challenge and a blank in this field. Herein, we successfully fabricate metal single atoms (Pd, Pt, Ru, Au) on porous carbon nitride/reduced graphene oxide (C3N4/rGO) foam as highly efficient catalysts with convenient recyclability. C3N4/rGO foam features two-dimensional microstructures with abundant N chelating sites for the stabilization of metal single atoms and vertically-aligned hierarchical mesostructure that benefits the mass diffusion. The obtained Pd1/C3N4/rGO monolith catalyst exhibits much enhanced activity over its nanoparticle counterpart for Suzuki-Miyaura reaction. Moreover, the Pd1/C3N4/rGO monolith catalyst can be readily assembled in a flow reactor to achieve the highly efficient continuous production of 4-nitro-1,1′-biphenyl through Suzuki-Miyaura coupling.

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Acknowledgements

This work was supported by the National Key R&D Program of China (No. 2018YFA0702003), the National Natural Science Foundation of China (No. 21890383 and 21971137) and Beijing Municipal Science & Technology Commission (No. Z191100007219003).

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Authors and Affiliations

  1. Department of Chemistry, Tsinghua University, Beijing, 100084, China

    Ninghua Fu, Xiao Liang, Zhi Li, Chen Chen, Dingsheng Wang, Qing Peng & Yadong Li

  2. Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China

    Wenxing Chen

  3. Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China

    Yu Wang

  4. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China

    Lirong Zheng

  5. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China

    Qinghua Zhang & Lin Gu

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  1. Ninghua Fu
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  2. Xiao Liang
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  3. Zhi Li
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  4. Wenxing Chen
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  8. Chen Chen
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Correspondence to Zhi Li or Yadong Li.

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Fu, N., Liang, X., Li, Z. et al. Fabricating Pd isolated single atom sites on C3N4/rGO for heterogenization of homogeneous catalysis. Nano Res. 13, 947–951 (2020). https://doi.org/10.1007/s12274-020-2720-1

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  • DOI: https://doi.org/10.1007/s12274-020-2720-1

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