Enhanced ethanol sensing properties of Zn-doped SnO2 porous hollow microspheres

Ethanol sensor development based on ternary-doped metal oxides (CdO/ZnO/Yb2O3) nanosheets for environmental safety

“…The higher sensitivity of the modied CdO/ZnO/Yb 2 O 3 NSs/GCE assembly can be accredited to the outstanding absorption ability and high catalytic-decomposition activity. 1,38,[43][44][45] The projected sensitivity of the CdO/ZnO/Yb 2 O 3 NSs/GCE sensor is comparatively higher and the detection limit is reasonably lower than earlier reported ethanol sensors based on other nanomaterials-modied electrodes according to I-V systems.…”

Synthesis and high sensing properties of a single Pd-doped SnO2 nanoribbon

“…Original SnO 2 NBs almost have no response to 1 ppm ethanol, but Pd-SnO 2 NBs have the response of 1.045 and exhibit good stability at 230°C, as shown in Figure 7a, which is more sensitive than that of the minimum concentration of 2 ~ 10 ppm reported [28]. …”

“…The response (recovery) time of the Pd-SnO 2 NB device and its counterpart were measured and listed in Table 1. At first glance, the two sensors show good sensitivity to three kinds of organic compounds and have relatively faster response (recovery) time, which could be attributed to the monocrystalline SnO 2 films compared to polycrystalline ones [23,27,28] based on the fact that our prepared NBs are single crystals obtained from the XRD and HRTEM results. It is also found that the response time is shorter with increasing temperature.…”

Facile synthesis of mesoporous SnO2 microspheres using bioactive yeast cell

“…In order to improve the performance of SnO 2 , SnO 2 products with different structures have been successfully developed including nanoparticles [1], nanoflowers [2], nanowires [4], porous structure [5,6], hollow nanofibers [7], hollow spheres [13][14][15][16][17][18][19][20] in the past few years, and all these special structures also show unique performance. Especially, due to the hollow structure and high specific surface area, SnO 2 hollow spheres have been synthesized by template-directed synthesis [13][14][15][16][17], self-assembly [18] and hydrothermal processing [19,20]. Among these methods, template-directed synthesis has been widely used and found to be a simple, inexpensive and effective technique.…”