Two-Dimensional Porous Micro/Nano Metal Oxides Templated by Graphene Oxide
2015
Cao, Hailiang | Zhou, Xufeng | Zheng, Chao | Liu, Zhaoping
Novel two-dimensional (2D) porous metal oxides with micro-/nanoarchitecture have been successfully fabricated using graphene oxide (GO) as a typical sacrificial template. GO as a 2D template ensures that the growth and fusion of metal oxides nanoparticles is restricted in the 2D plane. A series of metal oxides (NiO, Fe₂O₃, Co₃O₄, Mn₂O₃, and NiFe₂O₄) with similar nanostructure were investigated using this simple method. Some of these special nanostructured materials, such as NiO, when being used as anode for lithium-ion batteries, can exhibit high specific capacity, good rate performance, and cycling stability. Importantly, this strategy of creating a 2D porous micro/nano architecture can be easily extended to controllably synthesize other binary/polynary metal oxides nanostructures for lithium-ion batteries or other applications.
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