![]() Additionally, the fabricated sensor also showed quick response and the recovery time of 60 s and 55 s, respectively. The fabricated sensor was characterized against various concentration of NH 3 and the results indicated that the prepared sensor showed excellent responses at 65 ☌ working temperature, with 300 ppm concentration of NH 3 and the sensitivity was observed 172.70. Furthermore, SEM image showed that Sn and SnO 2 nanoparticles were well dispersed in the nitrogen doped carbon matrix. The XRD analysis showed the tetragonal crystal phase of SnO 2 nanoparticles, and the BET results revealed 148.9 m 2 g −1 surface area of the nanocomposite. The presence of both Sn and SnO 2 nanoparticles in carbon matrix are supported by FTIR, Raman and XRD. The prepared nanocomposite was characterized by various analytical technique including FTIR, TGA/DTA, Raman, XRD, FESEM, TEM/HRTEM and XPS. In the present study, a facial synthesis of Sn/SnO 2 nanoparticles embedded in nitrogen doped carbon based nanocomposites has been disclosed which was used as a fast and high-performance NH 3 gas sensor. ![]()
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