TY - JOUR
AU - Qiu, Zhilei
AU - Hua, Zhongqiu
AU - Li, Yan
AU - Wang, Mengjun
AU - Huang, Dan
AU - Tian, Chen
AU - Zhang, Chensheng
AU - Tian, Xuemin
AU - Li, Erping
PY - 2018
M3 - Original Research
TI - Acetone Sensing Properties and Mechanism of Rh-Loaded WO3 Nanosheets
JO - Frontiers in Chemistry
UR - https://www.frontiersin.org/articles/10.3389/fchem.2018.00385
VL - 6
SN - 2296-2646
N2 - WO3 nanosheets was prepared by an acidification method and the Rh catalyst was dispersed on the surface of the nanosheets with a wet impregnation method. The morphology of pristine WO3 and Rh modified WO3 nanosheets and their responses to acetone gas were studied. According to oxygen adsorption combined with TPR results, the sensing and sensitization mechanism of acetone were discussed. It was found that no visible changes in nanostructures or morphologies were observed in WO3 nanosheets with Rh, however, the sensor resistance and sensor response were greatly promoted. The basic sensitization mechanism could be caused by the electronic interaction between oxidized Rh and WO3 surface.
ER -