Facile synthesis of Pd-doped ZnSnO3 hierarchical microspheres for enhancing sensing properties of formaldehyde
Source abstract
Abstract
The precursors (ZnSn(OH)6) of ZnSnO3 hierarchical microspheres have been synthesized by an facile chemical precipitation method at room temperature followed by self-assembly, and then, the precursors were converted into hierarchical ZnSnO3 microspheres composed of nanoparticles by annealing. The structure and morphologies of the products were characterized by a series of analysis methods. The sensing performance of the ZnSnO3 microspheres to formaldehyde was studied, and the sensing mechanism was also discussed in detail. The sensing tests indicate that doping Pd can significantly improve the sensing properties of ZnSnO3 to formaldehyde, especially when the doping proportion of Pd is 4 wt%. In addition, the material has low detection limit of 100 ppb and shows linear response to formaldehyde in the concentration range from 0.1 to 10 ppm at operating temperature of 103 °C. All the above properties indicate that the 4 wt% Pd-doped composite is an attractive sensing material for detection of formaldehyde.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · ZnO doping and properties · Advanced Chemical Sensor Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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