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Research Article

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

Ninghua Fu1, Xiao Liang1, Zhi Li1( ), Wenxing Chen2, Yu Wang3, Lirong Zheng4, Qinghua Zhang5, Chen Chen1, Dingsheng Wang1, Qing Peng1, Lin Gu5, Yadong Li1( )
Department of Chemistry, Tsinghua University, Beijing 100084, China
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
Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
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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.

Keywords

heterogenization of homogeneous catalysismetal isolated single atomscarbon nitridereduced graphene oxidemonolith catalyst

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Nano Research
Volume 13 Issue 4,
April 2020
Pages 947-951
DOI: 10.1007/s12274-020-2720-1
Cite this article:
Fu N, Liang X, Li Z, et al. Fabricating Pd isolated single atom sites on C3N4/rGO for heterogenization of homogeneous catalysis. Nano Research, 2020, 13(4): 947-951. https://doi.org/10.1007/s12274-020-2720-1
Topics:
Nano unitCarbon nitrideCatalysis Catalyst activityFabricationGraphenePalladiumPorous carbon

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Received: 15 September 2019
Revised: 16 February 2020
Accepted: 17 February 2020
Published: 09 March 2020
© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020
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