Journal of Materials Science

, Volume 50, Issue 24, pp 7875–7883 | Cite as

Large-scale synthesis of porous graphene through nanoscale carbothermal reduction etching

  • Ming Zhang
  • Wen Xiao Bao
  • Xiao Li Liu
  • Bao Zhi Yu
  • Zhao Yu Ren
  • Jin Tao Bai
  • Hai Ming Fan
Original Paper


Porous graphene, which features nanoscaled pores on the sheets, has shown great potential in many technologically important industries. However, the conversional approaches for the synthesis of porous graphene including high-energy techniques and template etching/growth methods are generally conducted on substrates with high cost and low throughput. Herein, we demonstrate a general and scalable synthetic method for porous graphene via carbothermal reduction reaction using monodisperse zinc oxide nanoparticles. The results indicate that ZnO nanoparticles were first attached on graphene oxide nanosheets by electrostatic interaction, and then undergone a carbothermal reduction reaction at 800 °C to produce the pores on the sheets. While graphene oxide nanosheets were thermally reduced to graphene, all the by-products (carbon monoxide, carbon dioxide, and zinc) escaped from the final products simultaneously. The characterizations of the obtained porous graphene reveal that the pore size is about 11 nm, larger than that of ZnO nanoparticles (~5 nm), which is ascribed to the aggregation of ZnO nanoparticles (~20 nm) on the graphene oxide sheets. These results show the certain correlation among the sizes of pores, ZnO nanoparticles and ZnO aggregations, which gain insight into the controlling of pore size by choosing suitable etching agent.


Graphene Oxide Carbothermal Reduction Graphene Oxide Nanosheets Porous Graphene LiOH Solution 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This work was financially supported by the National Natural Science Foundation of China (Grant No. 21376192) and the Research Fund for the Doctoral Program of Higher Education China (Grant No. 20126101110017).


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Institute of Photonics & Photon-technologyNorthwest UniversityXi’anChina
  2. 2.School of Chemical EngineeringNorthwest UniversityXi’anChina

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