GS5.2 - Enhanced Gas sensing by Double-Shell V2O5 Hollow Nanospheres Functionalized with PdO Nanoparticles
- Event
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
Vienna, Austria - Chapter
- Gas Sensors 5
- Author(s)
- P. Sun, S. Zhang, Q. Yu, T. Wang, X. Yang, G. Lu - State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun (China)
- Pages
- 202 - 203
- DOI
- 10.5162/IMCS2018/GS5.2
- ISBN
- 978-3-9816876-9-9
- Price
- free
Abstract
Double-shell V2O5 hollow nanospheres decorated with PdO nanoparticles were synthesized via a template-free hydrothermal method combined with subsequent annealing process. The chemical composition and microstructure evolution were examined using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), and transmission electron microscope (TEM). The sensing properties of V2O5 hollow nanospheres before and after functionalization with PdO nanoparticles were investigated. The PdO-loaded Fe2O3 sensor exhibited obviously enhanced response to acetone compared with their unloaded counterparts. The improvement may arise from unique structure and catalytic effect of PdO in promoting the dissociation of gas molecules.