In this paper, we report the impact of graphene oxide (GO) on ethanol sensing performance of pure and Graphene doped Tin Oxide (GO-SnO₂) nanotubes (NTs) under dry and wet atmosphere. For this purpose, GO-SnO₂ NTs was obtained by a one-step electrospinning method. The sensing properties for ethanol was tested under dry air and at a different relative humidity (RH from 26% to 96%). The SnO₂ and GO-SnO₂ NTs exhibited higher response toward ethanol compare to other gases such as ammonia, acetone, methanol and ethanolamine, at the optimum working temperature of 300 °C. Afterwards, GO-SnO₂ NTs showed an enhanced ethanol response compare with the pristine SnO₂ NTs. Even under 96% of RH, the GO-SnO₂ NTs showed a response of 43.0 toward 100 ppm of ethanol with a response time of 8s. The excellent sensor performance is related to the tubular structure of SnO₂ NTs, and the heterojunction between GO and SnO₂. Therefore, doping with graphene oxide can be a promising approach to decrease the humidity impact on ethanol sensing performance.

在本文中，我们报告了在干燥和潮湿的气氛下，氧化石墨烯（GO）对纯石墨烯和掺杂石墨烯的氧化锡（GO-SnO ₂）纳米管（NTs）的乙醇感测性能的影响。为此，通过一步电纺丝法获得了GO-SnO ₂ NTs。在干燥的空气和不同的相对湿度（RH从26％到96％）下测试了乙醇的感测特性。与其他气体（例如氨，丙酮，甲醇和乙醇胺）相比，SnO ₂和GO-SnO ₂ NT在最佳工作温度为300°C时对乙醇表现出更高的响应。之后，与原始的SnO ₂相比，GO-SnO ₂ NTs显示出增强的乙醇反应新台币。即使在96％的相对湿度下，GO-SnO ₂ NTs对100 ppm的乙醇也显示出43.0的响应，响应时间为8s。优异的传感器性能与SnO ₂ NTs的管状结构以及GO和SnO ₂之间的异质结有关。因此，掺杂氧化石墨烯可能是减少湿度对乙醇感测性能的有前途的方法。