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The Assembly of one-dimensional(1D)nanostructures such as nanowires/nanorods/nanotubes into twodimensional(2D)macrostructured films is attracting considerable research interest because of their unique properties and wide applications.In this study,flexible membranes were successfully fabricated using a-MnO2nanowires synthesized through a hydrothermal method.The effects of thickness and post-annealing temperature on the mechanical properties of the membranes were investigated in detail.Nano-indentation measurements showed that the modulus of the as-prepared 11.75 lm-thick membrane reached5.765 GPa,and the modulus increased with the increasing post-annealing temperature.Thus,the fabricated membranes with superior mechanical strength can have potential applications such as in photocatalysis,filtering,and supporting substrates.
The Assembly of one-dimensional (1D) nanostructures such as nanowires / nanorods / nanotubes into twodimensional (2D) macrostructured films is attracting considerable research interest because of their unique properties and wide applications. In this study, flexible membranes were successfully fabricated using a- MnO2nanowires synthesized through a hydrothermal method. The effects of thickness and post-annealing temperature on the mechanical properties of the membranes were investigated in detail. Nano-indentation measurements showed that the modulus of the as-prepared 11.75 lm-thick membrane reached 5.765 GPa , and the modulus increased with the increasing post-annealing temperature. Thus, the fabricated membranes with superior mechanical strength can have potential applications such as in photocatalysis, filtering, and supporting substrates.