Synthesis of Hollow ZnSnO₃ Nanospheres with High Ethanol Sensing Properties

Figure 2

SEM images of (a) ZnO precursor and (b) hollow ZnSnO₃ nanospheres; TEM (c) and HRTEM (d); (e) images of hollow ZnSnO₃ nanospheres. Scale bar: 100 nm in (a), (b), (c), and (d), 5 nm in (e).

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(b)

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