Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 274, Issue -, Pages 587-594Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2018.07.159
Keywords
Hematite nanotubes; Acetone sensor; Au catalyst; Anodization; Diabetes mellitus
Funding
- Korea University
- Basic Science Research Program [2017R1A2B3009135]
- Future Material Discovery Program through the National Research Foundation (NRF) of Korea [2016M3D1A1027666]
- NRF - Korean government (Ministry of Education, Science, and Technology (MEST) [2016R1A2A1A05005331]
Ask authors/readers for more resources
Vertically ordered hematite nanotubes decorated with Au nanoparticles are synthesized by a facile electrochemical anodization method and self-agglomeration of Au films. Au decoration significantly enhances the response of hematite nanotubes to acetone at 350 degrees C and the response to acetone is 2.4 times higher than the response to ethanol, the counterpart target gas. The Au nanoparticles decorated hematite nanotubes exhibit unprecedentedly high and selective responses to acetone at 350 degrees C with 50% relative humidity condition (calibrated at room temperature, 25 degrees C). The enhanced gas sensing properties in a humid condition were attributed to the spillover effect by Au nanoparticles and high porosity of hematite nanotubes with a large surface-to-volume ratio. These results indicate that Au nanoparticles decorated hematite nanotubes are promising for use in high quality sensor materials for breath analyzers to diagnose diabetes mellitus.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available