Abstract
Multidimensional nanostructures (0D–1D composite nanostructure) SnO2 nanoparticles in SnO2 nanotubes were easily synthesized by combining the co-precipitation method with the coaxial electrospinning method. SnO2 nanoparticles with a size of about 30 nm were synthesized by co-precipitation method, and SnO2 nanoparticles in SnO2 nanotubes were synthesized by coaxial electrospinning by using a dispersion of SnO2 nanoparticles as the inner precursor. Such 0D–1D SnO2 nanostructures have advantages of the enhanced gas sensing performances due to the improved specific surface area and gas accessibility. The multidimensional nanostructures SnO2 nanoparticles in SnO2 nanotubes exhibit an enhanced gas sensing performances in comparison to 0D SnO2 nanoparticles and 1D SnO2 nanotubes.
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