Hydrothermal synthesis of novel porous butterfly-like hierarchical SnO2 architecture with excellent gas-sensing performance to acetaldehyde

•The butterfly-like SnO2 architecture were synthesized by oxidating SnO nanostructure prepared through hydrothermal route.•The SnO architecture employed to SnO precursor grown into a butterfly structure by orienting attachment induced by SDBS.•The butterfly-like SnO2 exhibited an excellent response,...

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