Synthesis and characterization of flower-like MoO3/In2O3 microstructures for highly sensitive ethanol detection

Jie Hu; Xiu Wang; Meng Zhang; Yongjiao Sun; Pengwei Li; Wendong Zhang; Kun Lian; Lin Chen; Yong Chen

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Synthesis and characterization of flower-like MoO₃/In₂O₃ microstructures for highly sensitive ethanol detection

机译：花状MoO _{3 / In _{2 O _{3 微结构的合成与表征}}}

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Flower-like pure and Mo-loaded In₂O₃ hierarchical microstructures were synthesized by a facile hydrothermal method. The morphology, crystal structures, and compositions of the samples were characterized by SEM, XRD, TEM, showing nanosheets with dimensions of 4 μm diameter and 25 nm thickness. Gas sensing experiments were conducted on the as-prepared MoO₃/In₂O₃ gas sensors, and the results prove that Mo-loaded In₂O₃ gas sensors exhibit enhanced gas sensing properties at 185 °C. In particular, the 3 mol% Mo-loaded In₂O₃ provided a high response (7 to 100 ppm ethanol), fast response and recovery time (11 s and 94 s), low detection limit (50 ppb), good selectivity and stability for ethanol detection, which is promising for low concentration ethanol detection in practical applications.

机译：通过简便的水热法合成了花状纯净且Mo负载的In _{2 O _{3 层次结构。样品的形貌，晶体结构和组成通过SEM，XRD，TEM表征，显示直径为4μm，厚度为25 nm的纳米片。对制备的MoO _{3 / In _{2 O _{进行气敏实验3 气体传感器，结果证明Mo加载到In _{2 O _{3 _{2 O _{3 提供了高响应（7至100 ppm乙醇），快速响应和恢复时间（11 s和94 s），低检测限（50 ppb），良好的乙醇检测选择性和稳定性，这在实际应用中有望用于低浓度乙醇检测。}}}}}}}}}

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《RSC Advances》 |2017年第38期|共8页
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Jie Hu; Xiu Wang; Meng Zhang; Yongjiao Sun; Pengwei Li; Wendong Zhang; Kun Lian; Lin Chen; Yong Chen;
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Synthesis and characterization of flower-like MoO3/In2O3 microstructures for highly sensitive ethanol detection

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Synthesis and characterization of flower-like MoO₃/In₂O₃ microstructures for highly sensitive ethanol detection