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- W2622508750 abstract "Ag-doped hollow urchin-like spheres In2O3 hierarchical nanostructures are developed for NO2 detection. Such unique architectures are synthesized by a facile and efficient solvothermal route combined with the subsequent thermal treatment. Various techniques, including X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), and high-resolution transmission electron microscopy (HRTEM) were employed to acquire the crystalline and morphological information of the as-obtained samples. Gas sensing performances of the sensor devices fabricated from pure and Ag-doped In2O3 were systematically investigated. The results indicate that the sensors based on Ag-doped In2O3 in certain molar ratio of AgNO3 to In2O3 (1:100) exhibit the largest response toward 1 ppm NO2, which is almost 23 times higher than that of the sensor based on pure In2O3 at the optimum operating temperature. It demonstrates that the Ag-doping can significantly improve the response to NO2. The excellent and enhanced NO2 sensing performances of Ag-doped In2O3 can be attributed to its novel hierarchical structure and the catalytic activity of Ag nanoparticles." @default.
- W2622508750 created "2017-06-15" @default.
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- W2622508750 date "2017-11-01" @default.
- W2622508750 modified "2023-10-15" @default.
- W2622508750 title "Enhanced NO2 gas sensing properties by Ag-doped hollow urchin-like In2O3 hierarchical nanostructures" @default.
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- W2622508750 doi "https://doi.org/10.1016/j.snb.2017.06.016" @default.
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