Solvothermal synthesis of dual-porous CeO2-ZnO composite and its enhanced acetone sensing performance
Source abstract
Abstract
Abstract Dual-porous CeO2-ZnO composite (CeO2-ZnO) was successfully prepared via a facile solvothermal process without using any surfactant or template. The product was investigated by X-ray diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectrometer (XPS) and N2 adsorption-desorption measurement. The results showed that “cavities” around 9.0 nm were uniformly distributed in the CeO2-ZnO and smaller pores about 2.4 nm would mainly locate in the walls between them. Compared to pure CeO2, there were more oxide defects and a larger Ce3+/Ce4+ ratio on the surface of the CeO2-ZnO. The gas sensor fabricated with the CeO2-ZnO exhibited superior gas responses of 2.1 and 16.2 toward 0.5 and 5 ppm acetone, respectively, which may find potential applications in diagnosis of diabetes and chemical detection.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
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