Electrospun Eu2O3/Au/SnO2 ternary nanofibers with synergistically enhanced acetone sensing properties

In this work, Eu2O3/Au/SnO2 ternary nanofibers were prepared via a synergetic approach including electrospinning and calcination. The sensor based on Eu2O3/Au/SnO2 nanofibers exhibited a remarkable response (similar to 65) to 100 ppm acetone at a relatively low operating temperature (200 degrees C), furthermore, the fast response recovery kinetics and selective acetone detection had been observed simultaneously. The enhancement of acetone sensing properties can be attributed to the construction of Eu2O3/SnO2 heterostructures and the chemical sensitization of Au nanocatalysts, suggesting a pathway to develop high-efficient acetone sensors for health security.

Automated summary

The Eu2O3/Au/SnO2 ternary nanofibers prepared via a synergetic approach exhibit a remarkable response to acetone detection at a low operating temperature, with fast response recovery kinetics and selective detection capabilities. This enhancement in sensing properties is attributed to the construction of heterostructures and chemical sensitization, providing a potential pathway for developing efficient acetone sensors for health security.