H2S gas sensing properties of CuO-functionalized WO3 nanowires
Source abstract
Abstract
Abstract This paper compares the H 2 S gas sensing properties of CuO-functionalized WO 3 nanowires with those of CuO-functionalized SnO 2 nanorods to see the relative contributions of the nanowire material (WO 3 or SnO 2 ) and functionalization material (CuO) to H 2 S gas sensing properties. Multiple networked CuO-functionalized WO 3 nanowire sensors showed electrical responses to H 2 S gas at 300 °C comparable to their CuO-functionalized SnO 2 nanorod counterparts. The CuO-functionalized WO 3 nanowires and CuO-functionalized SnO 2 nanorods exhibited responses of ~673% and ~798%, respectively, to 100 ppm H 2 S at 300 °C. The ratio of the response of CuO-functionalized WO 3 nanowires to H 2 S gas to that of pristine WO 3 nanowires was 3.65, whereas the ratio of the response of CuO-functionalized SnO 2 nanorods to H 2 S gas to that of pristine SnO 2 nanorods was 3.84. Differences in sensing mechanism between CuO-functionalized WO 3 nanowires and CuO-functionalized SnO 2 nanorods are also discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Transition Metal Oxide Nanomaterials · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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